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Dovecot Imap-Proxy: openssl_iostream_handle_error
by Urban Loesch 11 Mar '20

11 Mar '20

Hi, I'm running Dovecot 2.3.9-2 as an IMAP/POP3 Proxy in front of several Dovecotbackends. No Director, only static routing to the backends of each user. The proxies are also working as "SSL offload engines". SystemOS: Debian Stretch (9.11) on LXC Virtualization Sometimes I get the following errors in mail.err log: ... Mar 10 16:47:24 imap1 dovecot: imap-login: Panic: file iostream-openssl.c: line 599 (openssl_iostream_handle_error): assertion failed: (errno != 0) Mar 10 16:47:24 imap1 dovecot: imap-login: Fatal: master: service(imap-login): child 30431 killed with signal 6 (core dumped) Mar 10 16:47:38 imap1 dovecot: imap-login: Panic: file iostream-openssl.c: line 599 (openssl_iostream_handle_error): assertion failed: (errno != 0) Mar 10 16:47:38 imap1 dovecot: imap-login: Fatal: master: service(imap-login): child 30471 killed with signal 6 (core dumped) ... Full backtrace of the coredump: ... # gdb /usr/lib/dovecot/imap-login core.imap-login.30471 GNU gdb (Debian 7.12-6) 7.12.0.20161007-git Copyright (C) 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/lib/dovecot/imap-login...Reading symbols from /usr/lib/debug/.build-id/3c/24fcde9d366e5cfd7615cc42e013a060d092e5.debug...done. done. [New LWP 30471] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `dovecot/imap-login'. Program terminated with signal SIGABRT, Aborted. #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 warning: Source file is more recent than executable. 51 } (gdb) bt full #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 set = {__val = {0, 140427116827682, 140427117098374, 2147483649, 140427116658101, 0, 140427119440144, 140427116658101, 140427116658080, 140427104016227, 140427119689728, 0, 140427104016288, 140427119440144, 18446744073709551615, 0}} pid = <optimized out> tid = <optimized out> #1 0x00007fb7bc5ba42a in __GI_abort () at abort.c:89 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x7fff75b21b30, sa_sigaction = 0x7fff75b21b30}, sa_mask = {__val = {0, 140427119702945, 94861876544520, 140427119702945, 140427120378435, 140735167994944, 94861876544520, 140427119702945, 6008397283549395712, 140427119702945, 94861876544520, 140735167994832, 140427101843879, 3, 5, 140427119702945}}, sa_flags = -1130359394, sa_restorer = 0x0} sigs = {__val = {32, 0 <repeats 15 times>}} #2 0x00007fb7bca0c464 in default_fatal_finish (status=0, type=LOG_TYPE_PANIC) at failures.c:459 backtrace = 0x5646c0a5ae4c "" recursed = 0 recursed = 0 #3 fatal_handler_real (ctx=<optimized out>, format=<optimized out>, args=<optimized out>) at failures.c:471 status = 0 #4 0x00007fb7bca0c551 in i_internal_fatal_handler (ctx=<optimized out>, format=<optimized out>, args=<optimized out>) at failures.c:848 No locals. #5 0x00007fb7bc9622e3 in i_panic (format=format@entry=0x7fb7bb85ae70 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:523 ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0, timestamp_usecs = 0, log_prefix = 0x0, log_prefix_type_pos = 0} args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fff75b21d20, reg_save_area = 0x7fff75b21c60}} #6 0x00007fb7bb858708 in openssl_iostream_handle_error (ssl_io=ssl_io@entry=0x5646c0a22aa0, ret=-1, type=type@entry=OPENSSL_IOSTREAM_SYNC_TYPE_HANDSHAKE, func_name=func_name@entry=0x7fb7bb85b1a7 "SSL_accept()") at iostream-openssl.c:599 errstr = 0x0 err = 5 __func__ = "openssl_iostream_handle_error" #7 0x00007fb7bb8588ea in openssl_iostream_handshake (ssl_io=0x5646c0a22aa0) at iostream-openssl.c:669 reason = 0x53621d7edb623b00 <error: Cannot access memory at address 0x53621d7edb623b00> error = 0x0 ret = <optimized out> __func__ = "openssl_iostream_handshake" #8 0x00007fb7bb8583da in openssl_iostream_more (ssl_io=ssl_io@entry=0x5646c0a22aa0, type=type@entry=OPENSSL_IOSTREAM_SYNC_TYPE_HANDSHAKE) at iostream-openssl.c:546 ret = <optimized out> #9 0x00007fb7bb85a30f in i_stream_ssl_read_real (stream=stream@entry=0x5646c0a5b530) at istream-openssl.c:46 sstream = 0x5646c0a5b530 ssl_io = 0x5646c0a22aa0 buffer = "\234y\345h\226#a\256*\v\216\024\215\250S\227\362\300\003\231\212\027\361\340\353vfv\206_\375\340\362\300\003\231\212\027\361\340\353vfv\206_\375\340kEt`6\005\235\273\205\365\211\366\bU\374\212kEt`6\005\235\273\205\365\211\366\bU\374\212ڿ\024\221\025\350\351\347\060\005\236}\377\250\266\340ڿ\024\221\025\350\351\347\060\005\236}\377\250\266\340\037p\275x8\334Iu~\215\257\255\322\310W\253\037p\275x8\334Iu~\215\257\255\322\310W\253\264\036N\350\375\f!\310\"\250\033\236%\214\223\242\264\036N\350\375\f!\310\"\250\033\236%\214\223\242\371\v\204\371\v\002\036u\355\324/\301FV\000\000\260\037\262u\377\177\000\000\224\261"... orig_max_buffer_size = 1026 size = 10904244446682811178 ret = <optimized out> total_ret = <optimized out> __func__ = "i_stream_ssl_read_real" #10 0x00007fb7bb85a53e in i_stream_ssl_read (stream=0x5646c0a5b530) at istream-openssl.c:102 sstream = 0x5646c0a5b530 ret = <optimized out> #11 0x00007fb7bca1a305 in i_stream_read_memarea (stream=stream@entry=0x5646c0a5b5b0) at istream.c:313 old_size = 0 ret = <optimized out> __func__ = "i_stream_read_memarea" #12 0x00007fb7bca1a525 in i_stream_read (stream=0x5646c0a5b5b0) at istream.c:271 _stream = 0x5646c0a5b530 ret = <optimized out> #13 0x00007fb7bccd2880 in client_read (client=0x5646c0a59940) at client-common.c:1079 No locals. #14 0x00005646beb83ae3 in imap_client_input (client=<optimized out>) at imap-login-client.c:349 imap_client = 0x5646c0a59940 #15 0x00007fb7bca260c5 in io_loop_call_io (io=0x5646c0a22c80) at ioloop.c:718 ioloop = 0x5646c074ce10 t_id = 2 __func__ = "io_loop_call_io" #16 0x00007fb7bca27afb in io_loop_handler_run_internal (ioloop=ioloop@entry=0x5646c074ce10) at ioloop-epoll.c:222 ---Type <return> to continue, or q <return> to quit--- ctx = 0x5646c074eaa0 io = <optimized out> tv = {tv_sec = 0, tv_usec = 982536} events_count = <optimized out> msecs = <optimized out> ret = <optimized out> i = 0 j = <optimized out> call = <optimized out> __func__ = "io_loop_handler_run_internal" #17 0x00007fb7bca261d9 in io_loop_handler_run (ioloop=<optimized out>) at ioloop.c:770 No locals. #18 0x00007fb7bca26408 in io_loop_run (ioloop=0x5646c074ce10) at ioloop.c:743 __func__ = "io_loop_run" #19 0x00007fb7bc993423 in master_service_run (service=0x5646c074cca0, callback=callback@entry=0x7fb7bccd7d10 <client_connected>) at master-service.c:809 No locals. #20 0x00007fb7bccd8541 in login_binary_run (binary=<optimized out>, argc=<optimized out>, argv=<optimized out>) at main.c:560 set_pool = 0x5646c0752d10 login_socket = 0x7fb7bccdbfc9 "login" c = <optimized out> #21 0x00007fb7bc5a62e1 in __libc_start_main (main=0x5646beb832f0 <main>, argc=1, argv=0x7fff75b241c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff75b241b8) at ../csu/libc-start.c:291 result = <optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6899649731693310855, 94861847442192, 140735168004544, 0, 0, -915335683310285703, -874401070412002183}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7fff75b241d8, 0x7fb7bd106170}, data = {prev = 0x0, cleanup = 0x0, canceltype = 1974616536}}} not_first_call = <optimized out> #22 0x00005646beb8333a in _start () No symbol table info available. ... .... (gdb) bt #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 #1 0x00007fb7bc5ba42a in __GI_abort () at abort.c:89 #2 0x00007fb7bca0c464 in default_fatal_finish (status=0, type=LOG_TYPE_PANIC) at failures.c:459 #3 fatal_handler_real (ctx=<optimized out>, format=<optimized out>, args=<optimized out>) at failures.c:471 #4 0x00007fb7bca0c551 in i_internal_fatal_handler (ctx=<optimized out>, format=<optimized out>, args=<optimized out>) at failures.c:848 #5 0x00007fb7bc9622e3 in i_panic (format=format@entry=0x7fb7bb85ae70 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:523 #6 0x00007fb7bb858708 in openssl_iostream_handle_error (ssl_io=ssl_io@entry=0x5646c0a22aa0, ret=-1, type=type@entry=OPENSSL_IOSTREAM_SYNC_TYPE_HANDSHAKE, func_name=func_name@entry=0x7fb7bb85b1a7 "SSL_accept()") at iostream-openssl.c:599 #7 0x00007fb7bb8588ea in openssl_iostream_handshake (ssl_io=0x5646c0a22aa0) at iostream-openssl.c:669 #8 0x00007fb7bb8583da in openssl_iostream_more (ssl_io=ssl_io@entry=0x5646c0a22aa0, type=type@entry=OPENSSL_IOSTREAM_SYNC_TYPE_HANDSHAKE) at iostream-openssl.c:546 #9 0x00007fb7bb85a30f in i_stream_ssl_read_real (stream=stream@entry=0x5646c0a5b530) at istream-openssl.c:46 #10 0x00007fb7bb85a53e in i_stream_ssl_read (stream=0x5646c0a5b530) at istream-openssl.c:102 #11 0x00007fb7bca1a305 in i_stream_read_memarea (stream=stream@entry=0x5646c0a5b5b0) at istream.c:313 #12 0x00007fb7bca1a525 in i_stream_read (stream=0x5646c0a5b5b0) at istream.c:271 #13 0x00007fb7bccd2880 in client_read (client=0x5646c0a59940) at client-common.c:1079 #14 0x00005646beb83ae3 in imap_client_input (client=<optimized out>) at imap-login-client.c:349 #15 0x00007fb7bca260c5 in io_loop_call_io (io=0x5646c0a22c80) at ioloop.c:718 #16 0x00007fb7bca27afb in io_loop_handler_run_internal (ioloop=ioloop@entry=0x5646c074ce10) at ioloop-epoll.c:222 #17 0x00007fb7bca261d9 in io_loop_handler_run (ioloop=<optimized out>) at ioloop.c:770 #18 0x00007fb7bca26408 in io_loop_run (ioloop=0x5646c074ce10) at ioloop.c:743 #19 0x00007fb7bc993423 in master_service_run (service=0x5646c074cca0, callback=callback@entry=0x7fb7bccd7d10 <client_connected>) at master-service.c:809 #20 0x00007fb7bccd8541 in login_binary_run (binary=<optimized out>, argc=<optimized out>, argv=<optimized out>) at main.c:560 #21 0x00007fb7bc5a62e1 in __libc_start_main (main=0x5646beb832f0 <main>, argc=1, argv=0x7fff75b241c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff75b241b8) at ../csu/libc-start.c:291 #22 0x00005646beb8333a in _start () ..... I hope this is correct, fact that I'm not very experienced with coreudmps and the debug-process of it. Many thanks Urban Loesch

1 0

how to create Drafts, Junk, Sent, Trash folders after user already created
by chayes＠afo.net 10 Mar '20

10 Mar '20

Hello Dovecot, Do to a misconfiguration, I have a bunch of users who do not have the standard folders. I can create a routine to cycle through the users and look for the folders and run a command if there is one. Is there a way to create the proper namespace for a user after the user has already been created? Thanks in advance.

4 4

dovecot-pigeonhole Broken ?
by Günther J. Niederwimmer 09 Mar '20

09 Mar '20

Hello, I like to install Update my server but after the last update I have this Error System centos 7.7 when I Install "sieve" I have this error Mar 9 11:51:47 mx02 dovecot: master: Warning: Corrected permissions for login directory /var/run/dovecot/token-login Mar 9 11:51:47 mx02 dovecot: master: Dovecot v2.3.10 (0da0eff44) starting up for imap, lmtp, sieve (core dumps disabled) Mar 9 11:51:47 mx02 dovecot: doveconf: Fatal: execvp(/usr/libexec/dovecot/ managesieve) failed: Argument list too long Mar 9 11:51:47 mx02 dovecot: config: Error: managesieve-login: dump- capability process returned 89 Mar 9 11:59:38 mx02 dovecot: master: Warning: Killed with signal 15 (by pid=8242 uid=0 code=kill) Mar 9 11:59:54 mx02 dovecot: master: Dovecot v2.3.10 (0da0eff44) starting up for imap, lmtp (core dumps disabled) Mar 9 11:59:54 mx02 dovecot: doveconf: Fatal: execvp(/usr/libexec/dovecot/ managesieve) failed: Argument list too long Mar 9 11:59:54 mx02 dovecot: config: Error: managesieve-login: dump- capability process returned 89 Mar 9 12:04:28 mx02 dovecot: master: Warning: Killed with signal 15 (by pid=8366 uid=0 code=kill) Mar 9 12:04:29 mx02 dovecot: master: Dovecot v2.3.10 (0da0eff44) starting up for imap, lmtp (core dumps disabled) I have no change any of the config only enable sieve dovecot -n after reinstall pigeonhole # 2.3.10 (0da0eff44): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.10 (bf8ef1c2) doveconf: Fatal: execvp(/usr/libexec/dovecot/managesieve) failed: Argument list too long doveconf: Error: managesieve-login: dump-capability process returned 89 # OS: Linux 3.10.0-1062.12.1.el7.x86_64 x86_64 CentOS Linux release 7.7.1908 (Core) # Hostname: mx02.esslmaier.at auth_default_realm = esslmaier.at auth_gssapi_hostname = $ALL auth_krb5_keytab = /etc/dovecot/dovecot.keytab auth_master_user_separator = * auth_mechanisms = plain login auth_realms = esslmaier.at mail_location = maildir:~/Maildir mail_plugins = zlib acl fts fts_lucene namespace { ignore_on_failure = no list = children location = maildir:%%h/Maildir:INDEX=%h/shared/%%u:CONTROL=%h/shared/% %u:INDEXPVT=%h/shared/%%u prefix = shared/%%u/ subscriptions = yes type = shared } namespace inbox { hidden = no ignore_on_failure = no inbox = yes list = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = INBOX/ separator = / subscriptions = yes type = private } passdb { driver = pam } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = imap lmtp service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } user = root } ssl = required ssl_alt_cert = </etc/letsencrypt/live/mx02.esslmaier.at/fullchain.pem ssl_alt_key = # hidden, use -P to show it ssl_cert = </etc/letsencrypt/live/mx02.esslmaier.at/fullchain-ecdsa.pem ssl_cipher_list = ALL:!DH:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:! 3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH ssl_client_ca_file = </etc/pki/tls/cert.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.1 ssl_options = no_compression userdb { driver = passwd } userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } -- mit freundlichen Grüßen / best regards Günther J. Niederwimmer

1 0

(no subject)
by 刘莹莹 09 Mar '20

09 Mar '20

hello     I have some error by LMTP: Mar 09 13:26:42 imap-hibernate(q2(a)a.com)<90154><BqpPNmWg7M9/AAAB>: Error: Failed to unhibernate client: net_connect_unix(/var/run/dovecot/imap-master) failed: Permission denied Mar 09 13:26:42 imap-hibernate(q2(a)a.com)<90154><BqpPNmWg7M9/AAAB>: Info: net_connect_unix(/var/run/dovecot/imap-master) failed: Permission denied in=28 out=724 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 Mar 09 13:26:42 imap-login: Info: proxy(q2(a)a.com): disconnecting 192.168.14.1 (Disconnected by server(65s idle, in=244, out=865)): user=<q2(a)a.com>, method=PLAIN, rip=192.168.14.1, lip=192.168.14.11, session=<BadPNmWgePTAqA4B> Mar 09 13:26:42 imap-login: Info: Login: user=<q2(a)a.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=90413, secured, session=<ZVKPP2Wg8M9/AAAB> Mar 09 13:26:42 imap(q2(a)a.com)<90413><ZVKPP2Wg8M9/AAAB>: Warning: autocreate plugin is deprecated, use mailbox { auto } setting instead Mar 09 13:26:42 imap-login: Info: proxy(q2(a)a.com): started proxying to 127.0.0.1:143: user=<q2(a)a.com>, method=PLAIN, rip=192.168.14.1, lip=192.168.14.11, session=<lE6PP2WgzvXAqA4B> Mar 09 13:26:42 lmtp(q2(a)a.com)<90263><UIRqOYfTZV6XYAEA0J78UA>: Info: msgid=<77z2kkfmm1-7846bu3tx6(a)test.com>: saved mail to INBOX ll /var/run/dovecot/imap-master srw------- 1 root root 0 3月   9 13:05 /var/run/dovecot/imap-master

3 2

Dovecot v2.3.10 Released
by Aki Tuomi 07 Mar '20

07 Mar '20

We are pleased to release v2.3.10 of Dovecot. Please find it from locations below: https://dovecot.org/releases/2.3/dovecot-2.3.10.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.10.tar.gz.sig Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot Aki Tuomi Open-Xchange oy --- * Disable retpoline migitations by default. These can cause severe performance regressions, so they should be only enabled when applicable. * IMAP MOVE now commits transactions in batches of 1000 mails. This helps especially with lazy_expunge when moving a lot of mails. It mainly avoids situations where multiple IMAP sessions are running the same MOVE command and duplicating the mails in the lazy_expunge folder. With this change there can still be some duplication, but the MOVE always progresses forward. Also if the MOVE fails at some point, the changes up to the last 1000 mails are still committed instead of rolled back. Note that the COPY command behavior hasn't changed, because it is required by IMAP standard to be an atomic operation. * IMAP EXPUNGE and CLOSE now expunges mails in batches of 1000 mails. This helps especially with lazy_expunge when expunging a lot of mails (e.g. millions) to make sure that the progress always moves forward even if the process is killed. * Autoexpunging now expunges mails in batches of 1000 mails. This helps especially with lazy_expunge when expunging a lot of mails (e.g. millions) to make sure that the progress always moves forward even if the process is killed. + Add tool for generating sysreport called dovecot-sysreport. This generates a bundle of information usually needed for support requests. + Add support for the new IMAP \Important SPECIAL-USE flag (RFC 8457). + Add metric { group_by } setting. This allows automatically creating new metrics based on the fields you want to group statistics by. NOTE: This feature is considered experimental and syntax is subject to change in future release. + auth: Support SCRAM-SHA-256 authentication mechanism. + imap: Support the new IMAP STATUS=SIZE extension. + Use TCP_QUICKACK to reduce latency for some TCP connections. + quota-status: Made the service more robust against erroneous use with Postfix ACL policies other than smtpd_recipient_restrictions. + Add "revision" field support to imap_id_send setting. Using "revision *" will send in IMAP ID command response the short commit hash of the Dovecot git source tree HEAD (same as in dovecot --version). + IMAP ENVELOPE includes now all addresses when there are multiple headers (From, To, Cc, etc.) The standard way of having multiple addresses is to just list them all in a single header. It's non-standard to have multiple headers. However, since MTAs allow these mails to pass through and different software may handle them in different ways, it's better from security point of view to show all the addresses. + Event filters now support using "field_name=" to match a field that doesn't exist or has an empty value. For example use "error=" to match only events that didn't fail. - acl: INBOX ACLs shouldn't apply for IMAP GETMETADATA/SETMETADATA commands. - cassandra: CASS_ERROR_SERVER_WRITE_FAILURE error should also be treated as "uncertain write failure". - dict-redis: Using quota_clone configured with dict-redis could have crashed when Redis responded slowly. - imap-hibernate: Communication trouble with imap-master leads to segfault. - imap-hibernate: Unhibernation retrying wasn't working. - imap: Fixed auth lookup privilege problem when imap process was reused and user was being un-hibernated. - Fix potential crash when copying/moving mails within the same folder. This happened only when there were a lot of fields in dovecot.index.cache. - lib-index: Recreating dovecot.index.cache file could have crashed when merging bitmask fields. - lib-index: Using public/shared folders with INDEXPVT configured to use private \Seen flags, trying to search seen/unseen in an empty folder crashes with segfault. - lib-mail: Large base64-encoded mails weren't decoded properly. This could have affected searching/indexing mails and message snippet generation. - lib-mail: Message with only quoted text could have caused message snippet to ignore its 200 character limit and return the entire message. This was added also to dovecot.index.cache file, which increased disk space and memory usage unnecessarily. v2.3.9.2 regression (previous versions cached the quoted snippet as empty). In a large mail quoted text could have become wrongly added to the snippet, possibly mixed together with non-quoted text. - lib-smtp: client could have assert-crashed if STARTTLS handshake finished earlier than usually. - lib-ssl-iostream: remove -static flag for lib-ssl-iostream linking to prevent a compile issue. - lib-storage: Mailbox synchronization may have assert-crashed in some rare situations. - lib-storage: mdbox didn't preserve date.saved with dsync. - lib: Don't require EAI_{ADDRFAMILY,NODATA}, breaks FreeBSD - master: Some services could respawn unthrottled if they crash during startup. - push-notification: Do not send push_notification_finished event if nothing was done. This happens when mail transaction is started and ended with no changes. - quota-status: Addresses with special characters in the local part caused problems in the interaction between Postfix and Dovecot. Postfix sent its own internal representation in the recipient field, while Dovecot expected a valid RFC5321 mailbox address. - submission-login: SESSION was not correctly encoded field for the XCLIENT command. Particularly, a '+' character introduced by the session ID's Base64 encoding causes problems. - submission: Fix submission_max_mail_size to work correctly on 32-bit systems. - submission: Trusted connections crashed in second connection's EHLO if submission-login { service_count } is something else than 1 (which is the default). - submission: XCLIENT command was never used in the protocol exchange with the relay MTA when submission_backend_capabilities is configured, even when the relay MTA was properly configured to accept the XCLIENT command.

2 2

Dovecot - spam training through Outlook
by Özgür Kazancci 06 Mar '20

06 Mar '20

Greetings everyone. My dovecot mail server doesn't execute *train-spam.sh* script I set, when moving an e-mail from "Inbox" to "Junk" within Outlook. However, it does it fine when using an online webmail client a.k.a. Roundcube Webmail. Here are few lines from my maillog file showing the situation. Any idea would be much appreciated. Log output of the mentioned process: >From Outlook 2016 (Move from Inbox to Junk folder) Mar 5 07:50:37 mailserver1 dovecot: imap(info(a)mydomain.com)<72501><uGYu6hWgeupOrFX1>: delete: box=INBOX, uid=10, msgid=<016f01d5f248$45900090$d0b001b0$(a)test.xxx>, size=3344 Mar 5 07:50:37 mailserver1 dovecot: imap(info(a)mydomain.com)<72501><uGYu6hWgeupOrFX1>: expunge: box=INBOX, uid=10, msgid=<016f01d5f248$45900090$d0b001b0$(a)test.xxx>, size=3344 >From Roundcube Webmail (Move from Inbox to Junk folder) Mar 5 07:48:45 mailserver1 dovecot: imap(info(a)mydomain.com)<14673></W6k7RWgyEl/AAAB>: sieve: pipe action: piped message to program `train-spam.sh' Mar 5 07:48:45 mailserver1 dovecot: imap(info(a)mydomain.com)<14673></W6k7RWgyEl/AAAB>: sieve: left message in mailbox 'Junk' Mar 5 07:48:45 mailserver1 dovecot: imap(info(a)mydomain.com)<14673></W6k7RWgyEl/AAAB>: copy from INBOX: box=Junk, uid=9, msgid=<2eed864c2c38a690349e87dbd271e474(a)test.xxx>, size=1214 Mar 5 07:48:45 mailserver1 dovecot: imap(info(a)mydomain.com)<14673></W6k7RWgyEl/AAAB>: expunge: box=INBOX, uid=15, msgid=<2eed864c2c38a690349e87dbd271e474(a)test.xxx>, size=1214 Dovecot version: 2.3.9.3 running on OpenBSD 6.6 Many thanks, Özgür.

6 11

Updated Roadmap for Dovecot?
by Tanstaafl 06 Mar '20

06 Mar '20

Hello, Just wanted to go take a peek at the latest Roadmap for dovecot, and note that the current wiki page is flagged as obsolete: https://wiki.dovecot.org/Roadmap Is there an updated version somewhere? I'm interested in the list of new features being worked on - especially JMAP support - and a rough idea of when said features might be expected to make it into a release. Thanks!

1 0

Pigeonhole v0.5.10 Released
by Aki Tuomi 06 Mar '20

06 Mar '20

We are doing a pigeonhole 0.5.10 release to maintain version number parity with dovecot. You can download it from locations below: https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.10.t… https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.10.t… Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot There are no other changes than version number. --- Aki Tuomi Open-Xchange oy

1 0

encrypted storage on the fly using user's password without storing password on the server
by Alex Knowles 05 Mar '20

05 Mar '20

Hi all, I just joined the list. I've read through the mail-crypt plugin docs here https://doc.dovecot.org/configuration_manual/mail_crypt_plugin/ I'm still unclear (I'm not an expert) about the following: Is it possible to obtain on-the-fly encrypted storage using the user's password without the password being stored on the server? Basically a zero-knowledge solution. Theoretically this should be possible as the user provides the password when storing or retrieving emails. The above plugin docs don't make it clear for me whether it is supported. Could a kind clarify? I'd also be very grateful for a working conf as an example. Best wishes and thanks in advance, Alex.

2 2

[PATCH] lib-imap: imap-bodystructure: add test with empty header field
by Simon Ser 03 Mar '20

03 Mar '20

This causes the body structure to be incorrect. The RFC says it's fine o have empty header field values. --- This just adds a failing test, inspired from an e-mail spotted in the wild. Ideas welcome to fix it. src/lib-imap/test-imap-bodystructure.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/src/lib-imap/test-imap-bodystructure.c b/src/lib-imap/test-imap-bodystructure.c index 6f456a44530b..b8f215d689c4 100644 --- a/src/lib-imap/test-imap-bodystructure.c +++ b/src/lib-imap/test-imap-bodystructure.c @@ -41,6 +41,19 @@ struct parse_test parse_tests[] = { "\"text\" \"plain\" (\"charset\" \"utf-8\") NIL NIL \"8bit\" 8 2 NIL NIL NIL NIL", .body = "\"text\" \"plain\" (\"charset\" \"utf-8\") NIL NIL \"8bit\" 8 2" + },{ + .message = + "From: user(a)domain.org\n" + "Date: Sat, 24 Mar 2017 23:00:00 +0200\n" + "X-Spam-Level:\n" + "Content-Transfer-Encoding: quoted-printable\n" + "\n" + "body\n" + "\n", + .bodystructure = + "\"text\" \"plain\" (\"charset\" \"us-ascii\") NIL NIL \"quoted-printable\" 8 2 NIL NIL NIL NIL", + .body = + "\"text\" \"plain\" (\"charset\" \"us-ascii\") NIL NIL \"quoted-printable\" 8 2" },{ .message = "From: user(a)domain.org\n" -- 2.25.1

3 3

Dovecot autoexpunge
by Philip Colmer 03 Mar '20

03 Mar '20

Following a previous suggestion I'd received to turn on autoexpunge (https://dovecot.org/pipermail/dovecot/2020-February/118281.html) I'm now trying to confirm whether or not it is doing what I expect it to do. I've set the expiration to be 12 weeks (as shown below in the config) but a lot of the mailboxes have email in them that is much older. Reading http://dovecot.2317879.n4.nabble.com/Dovecot-2-2-20-autoexpunge-td54644.html, I've tried using "doveadm search -u user mailbox INBOX savedbefore 2w" to see if it finds any email that is older than 2 weeks (just as a test) and it doesn't. If I change "savedbefore" to be "sentbefore" then it works. If "autoexpunge" is dependent on "savedbefore" working then what do I need to do to fix this? Thanks. Regards Philip Below is the output of doveconf -n: # 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) # OS: Linux 4.15.0-1041-aws x86_64 Ubuntu 18.04.3 LTS auth_username_format = %Ln auth_verbose = yes disable_plaintext_auth = no listen = 127.0.0.1 mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_privileged_group = mail mailbox_list_index = yes namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox INBOX { autoexpunge = 12 weeks } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } protocols = " imap lmtp" service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } ssl = no ssl_cert = </etc/dovecot/private/dovecot.pem ssl_client_ca_dir = /etc/ssl/certs ssl_key = # hidden, use -P to show it userdb { driver = passwd }

1 0

Re: Sieve junks mail script creating links
by Aki Tuomi 02 Mar '20

02 Mar '20

On 19.2.2020 8.51, @lbutlr wrote: > On 18 Feb 2020, at 22:52, Aki Tuomi <aki.tuomi(a)open-xchange.com> wrote: >> Why not turn on autoexpunge after next nuke? https://doc.dovecot.org/configuration_manual/namespace/#namespace-settings > I should have mentioned I did this: > > mailbox Junk { > auto = subscribe > autoexpunge = 2 weeks > special_use = \Junk > > It’s not working. There were over half a million files in my Junk folder, almost all hard links with over 3,000 links. > Keeping reply in-list... Does this happen after each nuke or was it just first time? Aki

2 2

dovecot-lmtp dont see otherMailbox record?
by pi0trek75 01 Mar '20

01 Mar '20

Hello Postfix + LDAP , Samba as LDAP server, Dovecot virtual_transport set in postfix to dovecot-lmtp ( for autoresponder support ) Users have their email aliases in the otherMailbox record For example, account_test@example-domain user has an alias: test@exmaple-domain Query from command line works fine: postmap -q test@example-domain ldap://etc/postfix/ad_virtual_ account_test/Maildir/ (The filter in the query ad_virtual_mailbox_maps2.cf looks like this: [cut] scope = sub query_filter = (&(objectclass=person)(|(mail= result_attribute= uid result_format = %u/Maildir/ ) However, sending an email to the alias test@example-domain ends: Feb 28 12:31:40 mbox-01 postfix/lmtp[13474]: 2367A6EF: to=<test@example-domain>, relay=mbox-01[private/dovecot- delay=0.05, delays=0.02/0/0.02, dsn=5.1.1, status=bounced (host mbox-01[private/dovecot-lmtp] said: 550 5.1.1 <test@example-domain> User doesn't exist: test@example-domain (in reply to RCPT TO command)) I modified dovecot-ldap.conf.ext: I changed: user_filter = (&(objectClass=person)(uid=%u) to: user_filter = (&(objectClass=person)(|(uid=% but that didn't solve the problem. Where's the bug? Any hint? Below dovecot configuration: # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-6-amd64 x86_64 Debian 10.2 # Hostname: mbox-01 auth_cache_negative_ttl = 0 auth_username_format = %Ln disable_plaintext_auth = no mail_gid = vmail mail_location = mbox:~/mail:INBOX=/var/mailbox mail_privileged_group = mail mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext vacation-seconds namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } plugin { sieve = /var/mailbox-store/%u/.dovecot sieve_dir = /var/mailbox-store/%u sieve_extensions = +vacation-seconds sieve_trace_debug = yes sieve_trace_dir = /tmp/sieve/ sieve_trace_level = matching sieve_vacation_default_period = 10d sieve_vacation_max_period = 30d sieve_vacation_min_period = 1h } protocols = " imap lmtp sieve pop3 sieve" service auth { unix_listener /var/spool/postfix/private/aut { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0666 user = vmail } } service lmtp { unix_listener /var/spool/postfix/private/dov { group = postfix mode = 0600 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 0 service_count = 1 vsz_limit = 64 M } service managesieve { process_limit = 1024 } service stats { unix_listener stats-reader { group = vmail mode = 0660 user = vmail } unix_listener stats-writer { group = vmail mode = 0660 user = vmail } } ssl_cert = </etc/dovecot/private/dovecot. ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } protocol lmtp { mail_plugins = " sieve" } protocol lda { info_log_path = /var/log/dovecot-lda.log log_path = /var/log/dovecot-lda-errors.lo mail_plugins = " sieve" } and dovecot-ldap.conf.ext: [cut] deref = never scope = subtree user_attrs = =mail=maildir:/var/mailbox-sto user_filter = (&(objectClass=person)(|(uid=% pass_attrs = uid=user,userPassword=password pass_filter = (&(objectClass=person)(uid=%u) default_pass_scheme = CRYPT

1 0

max number of connections per ip
by Esteban L 29 Feb '20

29 Feb '20

I have been haunted by the following error message or months, that we see using Thunderbird. Unable to connect to your IMAP server. You may have exceeded the maximum number of connections to this server. If so, use the Advanced IMAP Server Settings dialogue to reduce the number of cached connections. If I change my location, via a VPN, the error message goes away and I can connect. I have edited my /etc/dovcot/conf.d/20-imap.conf file by adding the following: protocol imap { # Space separated list of plugins to load (default is global mail_plugins). mail_plugins = $mail_plugins imap_quota # Maximum number of IMAP connections allowed for a user from each IP address. # NOTE: The username is compared case-sensitively. mail_max_userip_connections = 500 } And, I still get the error message. I know myself, I have about 8-9 accounts, some with as many as 10 folders (I know each one count's as it's own mailbox), as does my partner--who would access the internet from my IP. Does that number really have to be like 10,000, or something? If so, why does it start out so small in the first place. If not, what else could I do to avoid this message going forward??

4 9

doveadm acl recursive
by Armin Schindler 28 Feb '20

28 Feb '20

Hello, I try to set acl settings on a public folder including its subfolders. There is no option for acting recursive. But the documentation says wildcards can be given on the mailbox name. But this doesn't work. No matter how the mailbox name is provided with a wildcard, doveadm always tells Mailbox doesn't exist. Folder example: public/project1 public/project1/subdir1 public/project1/subdir2 public/project1/subdir2/subsubdir3 Setting acl on the given mailbox works for all of them. But how can I set for "public/project1" and all its subfolders in one command? Even "doveadm mailbox list" gives the error above when using wildcard. (I also tried all combinations of quotes). Armin

1 0

dovecot 2 samba ad-dc
by phil 28 Feb '20

28 Feb '20

Helo you, I try to build a mail server based on Centos 7, postfix and dovecot 2. My backend is a Samba4 ad-dc. I tried a lot and I don't know what else I could try.I'm new to this mailing list so please forgive me if I don't give right information or anything Samba4 ad-dc is up incl. dns. Win10 Client joined domain and authentication works. Postfix is up and checks against ldap whether recipient address exists. It takes mail via telnet and queues them. But can't give it to dovecot. my master.cf locks like that: [root@mail1t postfix]# cat master.cf smtp inet n - - - - smtpd submission inet n - - - - smtpd -o smtpd_enforce_tls=yes -o smtpd_tls_security_level=encrypt -o tls_preempt_cipherlist=yes pickup fifo n - - 60 1 pickup cleanup unix n - - - 0 cleanup qmgr fifo n - n 300 1 qmgr tlsmgr unix - - - 1000? 1 tlsmgr rewrite unix - - - - - trivial-rewrite bounce unix - - - - 0 bounce defer unix - - - - 0 bounce trace unix - - - - 0 bounce verify unix - - - - 1 verify flush unix n - - 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - - - - smtp relay unix - - - - - smtp showq unix n - - - - showq error unix - - - - - error retry unix - - - - - error discard unix - - - - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - - - - lmtp anvil unix - - - - 1 anvil scache unix - - - - 1 scache maildrop unix - n n - - pipe flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient} uucp unix - n n - - pipe flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) ifmail unix - n n - - pipe flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp unix - n n - - pipe flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient scalemail-backend unix - n n - 2 pipe flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension} mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user} dovecot unix - n n - - pipe flags=DRhu user=vmail:vmail argv=/usr/local/libexec/dovecot/deliver -f ${sender} -d ${user}@${nexthop} #smtp inet n - n - 1 postscreen #smtpd pass - - n - - smtpd #dnsblog unix - - n - 0 dnsblog #tlsproxy unix - - n - 0 tlsproxy postlog unix-dgram n - n - 1 postlogd my ldap.conf on mailserver: [root@mail1t openldap]# cat ldap.conf # # LDAP Defaults # # See ldap.conf(5) for details # This file should be world readable but not world writable. #BASE dc=example,dc=com #URI ldap://ldap.example.com ldap://ldap-master.example.com:666 URI ldaps://ldap1t.test.loc:636 #SIZELIMIT 12 #TIMELIMIT 15 #DEREF never #TLS_CACERTDIR /etc/openldap/certs TLS_CACERTDIR /etc/pki/tls/certs/ka # Turning this off breaks GSSAPI used with krb5 when rdns = false SASL_NOCANON on TLS_REQCERT never dovecot.conf: [root@mail1t dovecot]# cat dovecot.conf auth_mechanisms = plain login mail_uid = vmail mail_gid = vmail ssl_cert = </etc/ssl/mail.pem ssl_key = </etc/ssl/key.pem login_log_format_elements = "user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k" #mail_plugins = quota ssl_cipher_list = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:+CAMELLIA256:+AES256:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!ECDSA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-SHA:AES128-SHA log_timestamp = "%Y-%m-%d %H:%M:%S " log_path = /var/log/dovecot.log info_log_path = /var/log/dovecot-info.log debug_log_path = /var/log/dovecot-debug.log #auth_verbose=yes auth_debug=yes auth_debug_passwords=yes mail_debug=yes verbose_ssl=yes protocols = imap listen = * auth_cache_size = 50000 # ~ 200 Benutzer mit Passwort auth_cache_ttl = 300s # in Sekunden, 5 Minute auth_cache_negative_ttl = 30s # wenn Benutzer nicht existierte bei letztem Check passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } service auth { unix_listener /var/spool/postfix/private/auth_dovecot { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0600 user = root } user = root } service dict { unix_listener dict { mode = 0660 user = vmail group = vmail } } namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } protocol imap { mail_plugins = quota imap_quota } plugin { quota = maildir:User quota } dovecot-ldap.conf.ext: root@mail1t dovecot]# cat dovecot-ldap.conf.ext #hosts = 192.168.122.30:636 # Windows Active Directory uris = ldaps://192.168.122.30:636 #dn = CN=DovecotAdministrator,OU=ServiceAccounts,OU=Identitiy,DC=test,DC=loc dn = CN=Administrator,CN=Users,DC=test,DC=loc dnpass = Test123! tls = no # Benötige ich (!) nicht auth_bind = yes # Für die Dauer der Authentifizierung bindet sich Dovecot als einloggender Mailuser auth_bind_dn = %u ldap_version = 3 base = OU=Identitiy,DC=domain,DC=local # Meine OU mit Benutzern scope = subtree # Oder "base", falls nicht rekursiv in der OU gesucht werden soll pass_attrs = \ =user=%{ldap:mail}, \ =passwerd=%{ladp:user}, \ user_attrs = \ =user=%{ldap:mail}, \ user_filter = (mailRoutingAddress=%u) pass_filter = (mail=%u) iterate_attrs = mail #mail=user # Wird vor allem von "doveadm" benötigt, um Benutzer zu finden iterate_filter = (objectClass=smiMessageRecipient #(objectClass=person) maillog gives me: Feb 20 08:34:56 mail1t postfix/smtpd[1794]: 04229120B0D: client=unknown[192.168.122.30] Feb 20 08:35:01 mail1t postfix/cleanup[1798]: 04229120B0D: message-id=<> Feb 20 08:35:01 mail1t postfix/qmgr[1268]: 04229120B0D: from=<test(a)test.loc>, size=176, nrcpt=1 (queue active) Feb 20 08:35:01 mail1t postfix/pipe[1799]: 04229120B0D: to=<test(a)test.loc>, relay=dovecot, delay=12, delays=12/0.01/0/0.07, dsn=4.3.0, status=deferred (temporary failure) Feb 20 08:35:03 mail1t postfix/smtpd[1794]: disconnect from unknown[192.168.122.30] helo=1 mail=1 rcpt=1 data=1 quit=1 commands=5 dovecot debug log: 2020-02-20 08:31:18 auth: Debug: Loading modules from directory: /usr/lib/dovecot/auth 2020-02-20 08:31:18 auth: Debug: Module loaded: /usr/lib/dovecot/auth/lib20_auth_var_expand_crypt.so 2020-02-20 08:35:01 lda(test(a)test.loc)<1800><>: Debug: auth-master: userdb lookup(test(a)test.loc): Started userdb lookup 2020-02-20 08:35:01 lda(test(a)test.loc)<1800><>: Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Connecting 2020-02-20 08:35:01 lda(test(a)test.loc)<1800><>: Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Client connected (fd=13) 2020-02-20 08:35:01 auth: Debug: Loading modules from directory: /usr/lib/dovecot/auth 2020-02-20 08:35:01 auth: Debug: Module loaded: /usr/lib/dovecot/auth/lib20_auth_var_expand_crypt.so 2020-02-20 08:35:01 lda(test(a)test.loc)<1800><>: Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Disconnected: Connection closed: read(size=8192) failed: Connection reset by peer (fd=13) 2020-02-20 08:35:01 lda(test(a)test.loc)<1800><>: Debug: auth-master: userdb lookup(test(a)test.loc): Userdb lookup failed a ldap search gives me: [root@mail1t dovecot]# ldapsearch -D "cn=administrator,cn=Users,dc=test,dc=loc" -W -H ldaps://ldap1t.test.loc:636 -b "ou=Identitiy,dc=test,dc=loc" -s sub -x "(objectclass=person)" Enter LDAP Password: # extended LDIF # # LDAPv3 # base <ou=Identitiy,dc=test,dc=loc> with scope subtree # filter: (objectclass=person) # requesting: ALL # # testuser2, Identitiy, test.loc dn: CN=testuser2,OU=Identitiy,DC=test,DC=loc objectClass: top objectClass: person objectClass: organizationalPerson objectClass: user cn: testuser2 instanceType: 4 whenCreated: 20191029150406.0Z uSNCreated: 4540 name: testuser2 objectGUID:: zfJ3SmPoLkO8wrVKP0Mc6g== badPwdCount: 0 codePage: 0 countryCode: 0 badPasswordTime: 0 lastLogoff: 0 primaryGroupID: 513 objectSid:: AQUAAAAAAAUVAAAAGQ/+ZjR2CNb9IiNGUQQAAA== accountExpires: 9223372036854775807 sAMAccountName: testuser2 sAMAccountType: 805306368 userPrincipalName: testuser2(a)test.loc objectCategory: CN=Person,CN=Schema,CN=Configuration,DC=test,DC=loc mail: test(a)test.loc userAccountControl: 512 lockoutTime: 0 pwdLastSet: 132257935214848870 lastLogon: 132258326087696220 logonCount: 9 lastLogonTimestamp: 132258326087696220 whenChanged: 20200210182328.0Z uSNChanged: 7912 distinguishedName: CN=testuser2,OU=Identitiy,DC=test,DC=loc # DovecotAdministrator, ServiceAccounts, Identitiy, test.loc dn: CN=DovecotAdministrator,OU=ServiceAccounts,OU=Identitiy,DC=test,DC=loc objectClass: top objectClass: person objectClass: organizationalPerson objectClass: user cn: DovecotAdministrator instanceType: 4 whenCreated: 20191029155812.0Z displayName: DovecotAdministrator uSNCreated: 4735 name: DovecotAdministrator objectGUID:: 6LODLEOIQ0iVbSDrOftLgg== badPwdCount: 0 codePage: 0 countryCode: 0 badPasswordTime: 0 lastLogoff: 0 lastLogon: 0 primaryGroupID: 513 objectSid:: AQUAAAAAAAUVAAAAGQ/+ZjR2CNb9IiNGUwQAAA== accountExpires: 9223372036854775807 logonCount: 0 sAMAccountName: DovecotAdministrator sAMAccountType: 805306368 userPrincipalName: DovecotAdministrator(a)test.loc objectCategory: CN=Person,CN=Schema,CN=Configuration,DC=test,DC=loc userAccountControl: 66048 pwdLastSet: 132240938772523690 lastLogonTimestamp: 132263319652676310 whenChanged: 20200216130605.0Z uSNChanged: 7935 distinguishedName: CN=DovecotAdministrator,OU=ServiceAccounts,OU=Identitiy,DC= test,DC=loc # search result search: 2 result: 0 Success # numResponses: 3 # numEntries: 2 Can someone give me a hint? Best Phil

3 2

dovecot-uidlist....
by Chi Min Wang 27 Feb '20

27 Feb '20

Hello Everyone: Is it possible to direct dovecot to modify dovecot-uidlist automatically?? I have some user who use ancient MUA(i.e. Openwebmail) and IMAP/POP3. Since Openwebmail will insert "Status: R" in the eml file,the size of the eml file will increase by 10 bytes. If the user use Openwebmail first,then the size record(S=xxxx) in dovecot-uidlist will be fine. But if he use POP3/IMAP(dovecot) first then use Openwebmail,the size record in dovecot-uidlist will not match the actual size modified by Openwebmail. This will cause dovecot killed by core dump. I'm wondering if there are any method to avoid this situation,Thanks!! *********************************************** CONFIDENTIALITY NOTICE:This e-mail and any attachments are confidential and may be legally privileged. If you are not the intended recipient, (i) please do not read or disclose to others, and (ii) please notify immediately the sender by reply mail, and (iii) please delete all copies of the email from your system. Failure to follow this process may be unlawful. We greatly appreciate your cooperation.

2 1

Matching regexps
by Adam Shostack 26 Feb '20

26 Feb '20

Hi, I'm having some trouble with matching. The regexp in my dovecot.sieve file should match on email addresses, but does not. # The code: if header :matches "From" "<[a-z0-9-]*(a)[a-z0-9-.]*>" { set "sender" "${1}"; } if not execute "grepfrom" ["${sender}"] { if envelope :matches "from" "*" { set "sender" "${1}"; } This failes to match Tamara Denning <tdenning(a)cs.utah.edu> when I check that regexp against that string at regex101.com, it shows a match, but the log (from sieve-test) shows: 348: header test 348: starting `:matches' match with `i;ascii-casemap' comparator: 348: extracting `From' headers from message 348: matching value `Tamara Denning <tdenning(a)cs.utah.edu>' 348: with key `.*<[a-z0-9-]*(a)[a-z0-9-.]*>' => 0 348: finishing match with result: not matched I would appreciate advice on why the match is failing, or what I can change to make it match. Thank you! Adam

2 1

Auto Subscribe not working for LDA/Sieve created Mailbox?
by Larry Rosenman 25 Feb '20

25 Feb '20

I have auto-subscribe turned on, but I had to doveadm mailbox subscribe to a LDA/Sieve created mailbox today. Did something break? doveconf -n attached. FreeBSD dovecot-2.3.9.3 Secure, fast and powerful IMAP and POP3 server dovecot-pigeonhole-0.5.9_1 Sieve plugin for the Dovecot 'deliver' LDA and LMTP -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 (c) E-Mail: larryrtx(a)gmail.com US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106

2 4

doveadm(nfsnobody) Error
by 横山航平 23 Feb '20

23 Feb '20

Please tell me about maillog Error. I get the following error in maillog：－－－ dovecot: doveadm(nfsnobody): Error: sync: User init failed dovecot: doveadm(nfsnobody): Error: User initialization failed: Namespace '': mkdir(/var/lib/nfs/Maildir) failed: Permission denied (euid=65534(nfsnobody) egid=65534(nfsnobody) missing +w perm: /var/lib/nfs, dir owned by 0:0 mode=0755) －－－ I am using Dsync and the configuration is below：－－－ service replicator { process_min_avail = 1 } dsync_remote_cmd = ssh -l%{login} %{host} doveadm dsync-server -u%u plugin { mail_replica = remote:root@XXX } service aggregator { fifo_listener replication-notify-fifo { mode = 0777 } unix_listener replication-notify { mode = 0777 } } service replicator { unix_listener replicator-doveadm { mode = 0600 } } replication_max_conns = 10 plugin { # When saving a new mail via IMAP or delivering a mail via LDA/LMTP, # wait for the mail to be synced to the remote site. If it doesn't finish # in 2 seconds, return success anyway. # replication_sync_timeout = 2s } －－－ Is the Dsync setting bad? please tell me.

2 1

Help needed with managesieve
by Laura Smith 22 Feb '20

22 Feb '20

Hi, I'm really struggling with the following inbound filtering: Let's say:• My email address is "my.email(a)example.com" • I've setup a filtered address "filtered.email(a)example.com" • I've setup a sending/reply address "send.email(a)example.com" I am sending a message to a small group of people where detailed tracking is required (yes, I know there are better automated ways outside of Dovecot to do this... but let's leave that topic for another day shall we !) My desired action is as follows : • Message "From" shows "send.email(a)example.com" • Message "To" is set as "filtered.email(a)example.com" • General recipients in Bcc When I send a test to an *external* address, it works as expected, i.e. : • External address receives mail in its inbox • Copy of mail gets put in relevant IMAP folder for "filtered.email(a)example.com" When I send a test to my own address, it does not work, the following happens instead: • Copy of mail gets put in relevant IMAP folder for "filtered.email(a)example.com" (this is good and as expected) • The BCC "my.email(a)example.com" never gets deposited in my inbox (this is not good) My dovecot sieve (as applied to "my.email(a)example.com") is as follows (I have tried both with and without the "stop" as you can see from the comment: anyof (address :is :all "to" ["send.email(a)example.com"], header :contains ["Cc", "Delivered-To"] ["send.email(a)example.com"]) { fileinto :create "XYZmail-replies"; # Ignore stop for this rule only # stop; } elsif anyof (address :is :all "to" ["filtered.email(a)example.com"], header :contains ["Cc", "Delivered-To"] ["filtered.email(a)example.com"]) { fileinto :create "XYZmail-sent"; # Ignore stop for this rule only # stop; }

2 1

Strategy for fts and Replication
by Francis Augusto Medeiros-Logeay 22 Feb '20

22 Feb '20

Hi there, I got successfully to replicate my mail server to another dovecot install using dsync, mainly for redundancy, and it works great. I want to try to install fts, as some of the mailboxes have tens of thousands of messages, and it takes minutes to get some results when searching via IMAP on a Roundcube interface. I want to experiment with fts-solr first, and firstly on my redundant server, ie., not on my main dovecot install. Is it ok to do this? I ask because I am afraid of how this whole reindexing on the redundant install will affect the production server. Also, any tips on something else than fts-solr? I tried it once, but it was so hard to get it right, so many configurations, java, etc., that I'd rather try something else. I also could try fts-elastic or something like that, but, again, having to maintain an elasticsearch install might use more resources than I think is worth. Any thoughts on that? Best, -- Francis

6 10

My sieve is failing
by ＠lbutlr 21 Feb '20

21 Feb '20

I have an active sieve file for my list account that alters the headers for this list (sets the reply-to address to the list instead of the poster) which is suddenly failing. require [ "regex", "variables", "fileinto", "envelope", "mailbox", "imap4flags", "editheader" ]; /* other stuff */ elsif header :contains "List-id" "dovecot.dovecot.org" { if header :matches "Reply-to" "*" { deleteheader "From"; addheader "From" "${1}"; deleteheader "Reply-To"; addheader "Reply-To" "dovecot(a)dovecot.org"; addheader "X-Covisp-Reply-To" "True"; } fileinto :create "dovecot"; stop;} And the trace file: 55: header test 55: starting `:contains' match with `i;ascii-casemap' comparator: 55: extracting `List-id' headers from message 55: matching value `Dovecot Mailing List <dovecot.dovecot.org>' 55: with key `dovecot.dovecot.org' => 1 55: finishing match with result: matched 55: jump if result is false 55: not jumping 56: header test 56: starting `:matches' match with `i;ascii-casemap' comparator: 56: extracting `Reply-to' headers from message 56: finishing match with result: not matched 56: jump if result is false 56: jumping to line 63 63: fileinto action 63: store message in mailbox `dovecot' 64: stop command; end all script execution ## Finished executing script '.active_sieve’ Neither the reply-to header nor the x- header are actually getting added, but the block is getting executed and the mail is filed in the right folder. In dovecot.conf I (still) have: managesieve_sieve_capability = editheader fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave

1 1

Test failure on ARM: backtrace_append
by Julien Lepiller 21 Feb '20

21 Feb '20

Hi, I am a packager in Guix and user of dovecot on an ARM server (armhf). The Guix package fails to build because of a test error (see the last lines of the full build log: https://ci.guix.gnu.org/log/f5if2qb5rsqag3a6jy5vga1l9hm9pkj0-dovecot-2.3.9.3) As the name suggests, this is dovecot 2.3.9.3, the latest version. Previous versions built fine, as well as the same version on x86 and x86_64. Note that the build on guix's build farm was done in a qemu vm, but I got the same test failure on real hardware. I'm not sure what the best course of action is. Did I find a legitimate bug, or should I simply ignore that test for that architecture? Dovecot itself seems to be running fine when I ignore the tests. Thanks for any guidance you could provide!

2 8

How does dovecot determine users from /etc/passwd?
by Philip Colmer 20 Feb '20

20 Feb '20

We're using dovecot on a help desk ticketing system. The system doesn't perform any cleanup of IMAP mailboxes so we have a regular cronjob doing this: /usr/bin/doveadm flags add -A '\Deleted' SEEN SENTBEFORE 12w && /usr/bin/doveadm expunge -A DELETED MAILBOX '*' Recently, doveadm has been reporting this: doveadm(nobody): Error: User initialization failed: Namespace '': mkdir(/nonexistent/mail) failed: Permission denied (euid=65534(nobody) egid=65534(nogroup)) doveadm(nobody): Error: User init failed doveadm(DEFAULT-CW-USER): Info: User no longer exists, skipping Indeed, using doveadm user "*" does include "nobody" in the list but I can't understand why. The mail group in /etc/group does not include "nobody" and there are users in /etc/passwd with similar attributes to "nobody" that do not appear in the list of users from doveadm. What can I do to tell doveadm to forget about "nobody"? Thanks. Philip

4 4

BUG: dsync and folder names with "@"
by spamvoll＠googlemail.com 20 Feb '20

20 Feb '20

Hello, dovecot version: 2.3.9.2 When I use dsync: /usr/bin/dsync -v -D -o plugin/quota= -f -u my(a)email.dom backup maildir:/tmp/mailbackup/Maildir it always stops when it comes to a folder with an "@" in its name. Error Message: Warning: Mailbox changes caused a desync. You may want to run dsync again: Remote lost mailbox GUID (maybe it was just deleted?) I dont know if it makes a difference, but my dovecot uses mdbox and the backup export is maildir. Hans

2 2

RE: Unknown setting error with dovecot-sql.conf.ext
by Andy Woolley 20 Feb '20

20 Feb '20

OMG, that was it, so sorry to have wasted your time. The text editor I am using (Ultraedit) is adding a BOM (Byte Order Marker) to the beginning of the file. I have disabled this in settings but it keeps doing it. Thank you so much for pointing me in the right direction. After removing the 3 invisible characters from the dovecot-sql.conf.ext file it magically worked. Andy -----Original Message----- From: Aki Tuomi [mailto:aki.tuomi@open-xchange.com] Sent: 20 February 2020 11:26 To: Andy Woolley <andy(a)milonic.com> Subject: Re: Unknown setting error with dovecot-sql.conf.ext I am unable to reproduce the issue here, can you send me the file itself? Maybe it has some strange thing in it? On 20.2.2020 12.23, Andy Woolley wrote: > > doveconf -n > > # 2.3.9.2 (cf2918cac): /etc/dovecot/dovecot.conf > > # OS: Linux 5.4.19-200.fc31.x86_64 x86_64 Fedora release 31 (Thirty > One) > > # Hostname: data.tia3.com > > auth_mechanisms = plain login > > mail_location = /home/vmail/%d/%n > > mail_privileged_group = mail > > mbox_write_locks = fcntl > > namespace inbox { > > inbox = yes > > location = > > mailbox Drafts { > > special_use = \Drafts > > } > > mailbox Junk { > > special_use = \Junk > > } > > mailbox Sent { > > special_use = \Sent > > } > > mailbox "Sent Messages" { > > special_use = \Sent > > } > > mailbox Trash { > > special_use = \Trash > > } > > prefix = > > } > > passdb { > > driver = pam > > } > > passdb { > > args = /etc/dovecot/dovecot-sql.conf.ext > > driver = sql > > } > > service auth-worker { > > user = vmail > > } > > service auth { > > unix_listener /var/spool/postfix/private/auth { > > group = postfix > > mode = 0660 > > user = postfix > > } > > unix_listener auth-userdb { > > mode = 0600 > > user = vmail > > } > > user = dovecot > > } > > service imap-login { > > inet_listener imap { > > port = 143 > > } > > inet_listener imaps { > > port = 993 > > ssl = yes > > } > > } > > service lmtp { > > unix_listener lmtp { > > group = postfix > > mode = 0600 > > user = postfix > > } > > } > > service pop3-login { > > inet_listener pop3 { > > port = 110 > > } > > inet_listener pop3s { > > port = 995 > > ssl = yes > > } > > } > > ssl = required > > ssl_cert = </etc/letsencrypt/live/intelliset.co.uk/fullchain.pem > > ssl_cipher_list = PROFILE=SYSTEM > > ssl_key = # hidden, use -P to show it > > userdb { > > driver = passwd > > } > > userdb { > > args = /etc/dovecot/dovecot-sql.conf.ext > > driver = sql > > } > > > > > > > > > > dovecot-sql.conf.ext: > > driver = mysql > > connect = host=127.0.0.1 dbname=mail user=foo password=bar > > default_pass_scheme = SHA512-CRYPT > > password_query = SELECT email as user, password FROM users WHERE > email='%u'; > > > > > > > > > > Many thanks, > > Andy > > > > > > *From:*dovecot [mailto:dovecot-bounces@dovecot.org] *On Behalf Of *Aki > Tuomi > *Sent:* 20 February 2020 10:11 > *To:* Andy Woolley <andy(a)milonic.com <mailto:andy@milonic.com>>; > dovecot(a)dovecot.org <mailto:dovecot@dovecot.org> > *Subject:* Re: Unknown setting error with dovecot-sql.conf.ext > > > > > > On 20.2.2020 12.06, Andy Woolley wrote: > > Hi All, > > > > I am trying to install Dovecot connecting to MySQL and all seems to be > working until I try to send/receive. > > > > Im getting a Unknown setting error for anything that is inside > dovecot-sql.conf.ext > > > > dovecot-sql.conf.ext is inside /etc/dovecot and is referenced from > /etc/dovecot/conf.d/auth-sql.conf.ext > > > > The error I get is: > > > > auth: Fatal: sql /etc/dovecot/dovecot-sql.conf.ext: Error in > configuration file /etc/dovecot/dovecot-sql.conf.ext line 1: Unknown > setting: driver > > > > Can anybody help me? > > > > Andy > > > > Post 'doveconf -n' please and the contents of the sql.conf.ext file. > Mind passwords. > > Aki > > > > *From:*dovecot [mailto:dovecot-bounces@dovecot.org] *On Behalf Of *Aki > Tuomi > *Sent:* 20 February 2020 10:11 > *To:* Andy Woolley <andy(a)milonic.com>; dovecot(a)dovecot.org > *Subject:* Re: Unknown setting error with dovecot-sql.conf.ext > > > > > > On 20.2.2020 12.06, Andy Woolley wrote: > > Hi All, > > > > I am trying to install Dovecot connecting to MySQL and all seems > to be working until I try to send/receive. > > > > Im getting a Unknown setting error for anything that is inside > dovecot-sql.conf.ext > > > > dovecot-sql.conf.ext is inside /etc/dovecot and is referenced from > /etc/dovecot/conf.d/auth-sql.conf.ext > > > > The error I get is: > > > > auth: Fatal: sql /etc/dovecot/dovecot-sql.conf.ext: Error in > configuration file /etc/dovecot/dovecot-sql.conf.ext line 1: > Unknown setting: driver > > > > Can anybody help me? > > > > Andy > > > > Post 'doveconf -n' please and the contents of the sql.conf.ext file. > Mind passwords. > > Aki >

1 0

Unknown setting error with dovecot-sql.conf.ext
by Andy Woolley 20 Feb '20

20 Feb '20

Hi All, I am trying to install Dovecot connecting to MySQL and all seems to be working until I try to send/receive. I'm getting a "Unknown setting" error for anything that is inside dovecot-sql.conf.ext dovecot-sql.conf.ext is inside /etc/dovecot and is referenced from /etc/dovecot/conf.d/auth-sql.conf.ext The error I get is: auth: Fatal: sql /etc/dovecot/dovecot-sql.conf.ext: Error in configuration file /etc/dovecot/dovecot-sql.conf.ext line 1: Unknown setting: driver Can anybody help me? Andy

2 2

Flush userdb cache entry
by Tom Sommer 19 Feb '20

19 Feb '20

Hi all I have a problem when users change quota in SQL, the change is not reflected in Dovecot immediately so quota_warning is still triggered on some occasions. I think it's because the quota is stored in userdb, and there is no way to flush userdb cache? Is there a way to flush userdb entries? What controls userdb cache TTL/size? auth_cache entries? I can't seem to find any documentation on this, sadly :( Thanks -- Tom

1 1

Message-id parsing by sieve
by Russell King 19 Feb '20

19 Feb '20

Hi, I'm using Dovecot for my mail with pigeonhole's sieve extension, from debian stable (2.3.4.1 (f79e8e7e4)). One of the sieve stanzas that I use is for duplicate elimination: if duplicate { discard; stop; } This mostly works fine, but I seem to have trouble with some messages that come from certain domains where duplicates are not eliminated. >From /var/log/mail.log, I see: Feb 18 12:48:50 mail dovecot: lmtp(24320:linux@xxx.armlinux.org.uk): sieve: msgid=? <VI1PR04MB513558BF77192255CBE12102B0110(a)VI1PR04MB5135.eurprd04.prod.outlook.com>: stored mail into mailbox 'INBOX' Feb 18 12:49:42 mail dovecot: lmtp(24320:linux@xxx.armlinux.org.uk): sieve: msgid=<VI1PR04MB513558BF77192255CBE12102B0110(a)VI1PR04MB5135.eurprd04.prod.outlook.com>: stored mail into mailbox 'INBOX' The first was received direct from the recipient with a message-id line formatted thusly: Message-ID: <VI1PR04MB513558BF77192255CBE12102B0110(a)VI1PR04MB5135.eurprd04.prod.outlook.com> The second was received from the mailing list with a message-id line formatted thusly: Message-ID: <VI1PR04MB513558BF77192255CBE12102B0110(a)VI1PR04MB5135.eurprd04.prod.outlook.com> It would appear that the parsed message-id value that dovecot uses includes white-space (including newline characters). RFC5322 gives the message-id header format as: message-id = "Message-ID:" msg-id CRLF msg-id = [CFWS] "<" id-left "@" id-right ">" [CFWS] It goes on to say: The message identifier (msg-id) itself MUST be a globally unique identifier for a message. and: Semantically, the angle bracket characters are not part of the msg-id; the msg-id is what is contained between the two angle bracket characters. However, it seems dovecot sieve is using the entire content of the msg-id, including CFWS, as the message id used for detecting duplicate messages. This seems wrong, and appears to lead to duplicates not being detected, and thus seems like a bug. Is there a workaround for this, and/or can it be changed? -- Russell King

2 1

Sieve junks mail script creating links
by ＠lbutlr 19 Feb '20

19 Feb '20

My Junk mailbox is still filling up with hard linked emails. There are some junk mails with over 3000 hard linked files and over half a million files in the .Junk/cur folder. I had a handy script to remove them all by doing a find for inodes and sorting the list by age and keeping the olds hard link and removing all the others, but I now can’t find it :/ so I have just taken to periodically nuking the entire folder, but I’d like to fix this. *everything is current on FreeBSD 12.1-RELEASE => dovecot.conf imapsieve_mailbox1_before = file:/usr/lib/dovecot/sieve/report-spam.sieve => /usr/lib/dovecot/sieve/report-spam.sieve: require ["vnd.dovecot.pipe", "copy", "imapsieve", "environment", "variables"]; if environment :matches "imap.user" "*" { set "username" "${1}"; } pipe :copy "sa-learn-spam.sh" [ "${username}" ]; => /usr/lib/dovecot/sieve/sa-learn-spam.sh: #!/bin/sh exec /usr/local/bin/sa-learn -u ${1} —spam -- When the stars threw down their spears And watered heaven with their tears, Did He smile his work to see? Did He who made the Lamb make thee?

2 1

managesieve / sieve - append dot prefix on moving mails into folder
by Andre Hoepner - i.based: Systemhaus GmbH + Co. KG 18 Feb '20

18 Feb '20

Hello mailinglist-subscribers, i have an issue with the managesieve / sieve plugin in dovecot. We use roundcube as webmailer and if i define a new filter to move incoming mails directly into a subfolder i get the following sieve-code: require ["fileinto","imap4flags"]; # rule:[mail into folder] if allof (header :contains "from" "sender(a)domain.org") { fileinto "Foldername"; setflag "\\Seen"; } So anything seems to be right and there are no errors on creating the correct syntax. But if a mail comes from the named sender, sieve does not put the email in the folder "Foldername" but ".Foldername". It appends a dot (.) in front of the name and i have no idea, why this happens. There are no errors in logfile and all mails go into the .Folder. Maybe it is wrong separator for mailbox, at the moment there is no separator defined in "10-mail.conf" and we use "Maildir" as mail_location. I have also tried to change the target folder in sieve script an named him "INBOX/Monitoring" - as subfolder of INBOX but than i get an error in .dovecot.sieve.log with message: Invalid mailbox name: Name must not have '/' characters. I edited the new rule with roundcube / managesieve-plugin and maybe this needs separate configuration because of separator in foldernames? Please let me know if i should provide any extra information or dovecot configuration etc. best regards Andre Hoepner

3 3

Re: Shared Mailboxes with Multiple Domains
by Daniel Miller 18 Feb '20

18 Feb '20

Any thoughts on this? --- Daniel ------ Original Message ------ From: "Daniel Miller" <dmiller(a)amfes.com> To: "Dovecot Mailing List" <dovecot(a)dovecot.org> Sent: 2/12/2020 6:16:05 PM Subject: Shared Mailboxes with Multiple Domains >Trying to track down a problem I've been dealing with for a while. Everything else works fine - the problem is with shared mailboxes. > >My present, and desired, prefix for the shared namespace is: > prefix = INBOX/shared/%%d/%%n/ > >Some mail clients, particularly Thunderbird and Android's AquaMail, have no problem with this. But other (presumably broken) clients don't show the shared mailboxes. This includes EM Client and Webmail Lite. Actually, Webmail Lite lists the mailboxes in the subscription window, but then the "live"folder list shows "shared" and "shared/domain" but none of the shared mailboxes below the domain. > >Changing to: > prefix = INBOX/shared/%%u/ > >Works across all clients - but I'd rather have the domain separation. Testing with telnet ". LIST '' '*'" yields the full list with either config. > >The files /var/mail/%d/shared-mailboxes contain entries like: >shared/shared-boxes/group/allshared/user(a)domain.com > 1 > > >Below is "doveconf -n" output. > ># 2.3.9.3 (9f41b88fa): /usr/local/etc/dovecot/dovecot.conf ># Pigeonhole version 0.5.9 (db4e9a2f) ># OS: Linux 5.3.0-28-generic x86_64 Ubuntu 18.04.4 LTS ># Hostname: bubba.amfes.lan >auth_cache_size = 4 k >auth_master_user_separator = * >auth_mechanisms = plain login >auth_policy_hash_nonce = # hidden, use -P to show it >auth_policy_hash_truncate = 8 >auth_policy_server_api_header = Authorization: Basic d2ZvcmNlOnVsdHJhLXNlY3JldC1zZWN1cmUtc2FmZQ >default_login_user = nobody >default_vsz_limit = 2 G >disable_plaintext_auth = no >imap_client_workarounds = tb-extra-mailbox-sep >imap_idle_notify_interval = 29 mins >listen = * >login_trusted_networks = 192.168.0.0/24 >mail_attachment_hash = %{sha512} >mail_plugins = fts fts_solr acl zlib virtual >mail_prefetch_count = 10 >mail_shared_explicit_inbox = yes >managesieve_notify_capability = mailto >managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihaveduplicate mime foreverypart extracttext >mdbox_rotate_size = 20 M >namespace archives { > list = children > location = mdbox:/var/mail/%d/%n/Archives/mdbox > mailbox Unsorted { > auto = no > special_use = \Archive > } > prefix = INBOX/Archives/ > separator = / > subscriptions = no > type = private >} >namespace inbox { > hidden = no > inbox = yes > list = yes > location = > mailbox "Deleted Messages" { > auto = no > autoexpunge = 30 days > special_use = \Trash > } > mailbox Drafts { > auto = subscribe > special_use = \Drafts > } > mailbox Sent { > auto = subscribe > special_use = \Sent > } > mailbox "Sent Items" { > auto = no > special_use = \Sent > } > mailbox "Sent Messages" { > auto = no > special_use = \Sent > } > mailbox Trash { > auto = subscribe > autoexpunge = 30 days > special_use = \Trash > } > prefix = INBOX/ > separator = / > subscriptions = no > type = private >} >namespace lists { > list = children > location = mdbox:/var/mail/%d/%n/Lists/mdbox > prefix = INBOX/Lists/ > separator = / > subscriptions = no > type = private >} >namespace subscriptions { > hidden = yes > list = no > location = > prefix = > subscriptions = yes >} >namespace usershares { > list = children > location = sdbox:/var/mail/%%d/%%n/sdbox:NO-NOSELECT > prefix = INBOX/shared/%%d/%%n/ > separator = / > subscriptions = no > type = shared >} >namespace virtual { > list = children > location = virtual:/var/mail/%d/%n/virtual > mailbox Flagged { > comment = All my flagged messages > special_use = \Flagged > } > prefix = INBOX/virtual/ > separator = / > subscriptions = no >} >passdb { > args = /usr/local/etc/dovecot/dovecot-sql.conf.ext > driver = sql >} >plugin { > acl = vfile > acl_shared_dict = file:/var/mail/%d/shared-mailboxes > fts = solr > fts_autoindex = yes > fts_autoindex_exclude = \Trash > fts_autoindex_exclude2 = \Junk > fts_autoindex_exclude3 = \Spam > fts_enforced = no > fts_index_timeout = 20s > fts_solr = url=http://127.0.0.1:8983/solr/dovecot/ > mailbox_alias_new = Sent Messages > mailbox_alias_new2 = Sent Items > mailbox_alias_new3 = Deleted Messages > mailbox_alias_old = Sent > mailbox_alias_old2 = Sent > mailbox_alias_old3 = Trash > sieve = file:~/sieve;active=~/.dovecot.sieve >} >protocols = imap lmtp sieve >service auth { > unix_listener /var/spool/postfix/private/auth { > group = postfix > mode = 0660 > user = postfix > } > unix_listener auth-userdb { > group = mail > mode = 0600 > user = vmail > } >} >service dict { > unix_listener dict { > group = mail > mode = 0660 > user = vmail > } >} >service imap-login { > process_min_avail = 10 > service_count = 1 >} >service imap-postlogin { > executable = script-login /usr/local/etc/dovecot/post-login.sh > user = $default_internal_user >} >service imap { > executable = imap imap-postlogin > vsz_limit = 4 G >} >service indexer-worker { > process_limit = 3 >} >service lmtp { > process_min_avail = 5 > unix_listener /var/spool/postfix/private/dovecot-lmtp { > group = mail > mode = 0666 > user = vmail > } >} >service managesieve-login { > inet_listener sieve { > port = 4190 > } > inet_listener sieve_deprecated { > port = 2000 > } > process_min_avail = 0 > service_count = 1 >} >ssl_cert = </etc/ssl/letsencrypt/live/mail.amfes.com/fullchain.pem >ssl_dh = # hidden, use -P to show it >ssl_key = # hidden, use -P to show it >userdb { > driver = prefetch >} >userdb { > args = /usr/local/etc/dovecot/dovecot-sql.conf.ext > driver = sql >} >verbose_proctitle = yes >protocol lmtp { > mail_plugins = fts fts_solr acl zlib virtual sieve > postmaster_address = postmaster(a)amfes.com >} >protocol lda { > mail_plugins = fts fts_solr acl zlib virtual sieve >} >protocol imap { > mail_max_userip_connections = 50 > mail_plugins = fts fts_solr acl zlib virtual imap_acl imap_zlib mailbox_alias >} > > >-- Daniel > >

2 1

Postfix Dovecot Consultant Availability
by Asai 17 Feb '20

17 Feb '20

Greetings, We're in process of upgrading our Postfix / Dovecot installation, and would like to know if there are any qualified consultants out there that would be willing to work for us to help us verify and improve the deployment for our non-profit organization? This would be a fairly simple job of looking over configs and making recommendations, but may give way into more ongoing work. I know there are a lot of experts on this list that really know how Postfix and Dovecot work and we'd really appreciate some quality advice. I'm sending this request to both Postfix and Dovecot lists. Please email me directly with replies. -- Asai

1 0

Sieve setting a flag on the server (with sieve?)
by Marc Roos 17 Feb '20

17 Feb '20

I want to run a cron job for specific users. I thought the easiest would be a sieve plugin that sets some text in managesieve.sieve. And I just have my cron job check for this setting. This is the forward sieve: if false # true { redirect :copy "test(a)test.com"; } So maybe something like: if false # true { # cronjob1 } Or is there a better way of doing such a thing?

2 1

Question about noreplicate flag
by Bernardo Reino 17 Feb '20

17 Feb '20

Dear all, I've just setup replication between two servers. The e-mail accounts on both servers intersect but are not the same. In dovecot.conf (both are identical except one user /var/mail and the other uses /srv/vmail) I have: --<<-- userdb { driver = passwd-file args = username_format=%Lu /etc/dovecot/virtual_passwd default_fields = uid=vmail gid=vmail home=/var/mail/%d/%n } passdb { driver = passwd-file args = scheme=SHA512-CRYPT username_format=%Lu /etc/dovecot/virtual_passwd } -->>-- i.e. I use a passwd-like database. For the non-overlapping accounts in both servers I want to prevent replication, as it will otherwise fail with "Error: sync: Unknown user in remote". I have added "userdb_noreplicate" (also tried "userdb_noreplicate=y") for those users, but I still see the above error message in the logs. Like: reinob@bbmk.org:{SHA512-CRYPT}$6$e10...4c::::::userdb_noreplicate=y If I run "doveadm user -u reinob(a)bbmk.org" I get the following: userdb: reinob(a)bbmk.org user : reinob(a)bbmk.org uid : 5000 gid : 5000 home : /var/mail/bbmk.org/reinob noreplicate: y Note that I use "userdb_noreplicate" instead of "noreplicate" (which I also tried just in case), as from what I understood the "userdb_" prefix is required when adding the flag to the passwd file. As far as I can tell I'm doing everything right, but for some reason the replication is ignoring that flag. Thanks in advance for any help with this. (Let me know if you need to see the $(doveconf -n), but I believe the only relevant parts are the userdb and passdb.

2 6

Re: .IMAP
by Jos Chrispijn 16 Feb '20

16 Feb '20

On 15-2-20 11:55, Thomas Zajic wrote: > That's probably because the second part of Aki's advise hasn't been followed yet > ("... and ensure the mails are under there, ..."). You need to physically move all > mail related files and folders to the ~/mail subdir of each user. The "Deleted" > mailbox probably still shows up because your MUA has been configured to use a local > folder for it instead of an IMAP folder. Just to let you know that I also noticed that in a far past I created in the BSD root a symbolic link 'home -> usr/home'. That works for most programs, but obviously the use of this '/home' link in my old Dovecot config is not picked up by Dovecot as being redirected to '/usr/home'. ./joz

1 0

shared folder name or public folder with mail address
by Armin Schindler 16 Feb '20

16 Feb '20

Hello! we are about to move from cyrus to dovecot and have one open issue for that migration. With cyrus we have "shared/" folders with a name that is self defined like shared/project-xyz but the email address for direct delivery to that folder my be different (not project-xyz(a)domain.com) With dovecot we try to have it similar (at least how the user sees it in the client) like it is now. When configuring a namespace of type=shared, I see in the docs the the prefix can be configured with %%u , %%n or %%d. But is it possible to configure the name different to the email address? E.g. to hide the email address of that folder and show a nice name instead? I also thought about using public namespace instead. Does this make sense here? With public (maybe configured with prefix=shared/) folder I can set any name as subdir in prefix, right? So would this be more like what we have with cyrus shared folder? If so, how could these public folders have an email address for direct mail delivery into? Can something like a global sieve rule do that? Or can a public folder have an email address? Thanks in advance. Armin

4 13

doveadm backup -R -m -s not picking up a new message
by Daniel Shahaf 16 Feb '20

16 Feb '20

Good morning, I use «doveadm backup -R -m foo -s $state» to create a local mirror of an imapc remote folder. When I run that command, wait for it to finish, deliver a new message to the remote folder, and run that command again, the new message does not get downloaded from the remote. I'll attach the rawlog, doveconf, etc at the end. Allow me first to summarize what I've already checked: - I used «openssl s_client» to issue EXAMINE on the remote mailbox before and after delivering a mail to the remote mailbox, and HIGHESTMODSEQ does increase. - I looked at rawlog for both runs. doveadm issues a «STATUS foo (UIDNEXT UIDVALIDITY)» and receives a correct response (UIDNEXT in the second run is one larger than in the first run). - Other than that STATUS command, doveadm only issues LOGIN, LOGOUT, LIST, and LSUB commands. The remote server's responses do not report the new HIGHESTMODSEQ value for the folder. - The message does get mirrored locally when I run without the -s flag. I'm running dovecot 2.3.9.2 from FreeBSD ports. I've reviewed the FreeBSD port¹; it does have some patches, but none of them seem relevant to this issue. The remote server runs Cyrus. Debug output, etc follow: [[[ % doveconf -n # 2.3.9.2 (cf2918cac): /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 12.1-RELEASE amd64 # Hostname: imapmirror.v.shahaf.local2 disable_plaintext_auth = no first_valid_uid = 1000 imapc_features = " rfc822.size fetch-headers modseq" imapc_host = imap.fastmail.com imapc_password = # hidden, use -P to show it imapc_port = 993 imapc_ssl = imaps imapc_user = ... last_valid_uid = 65500 mail_location = maildir:~/Maildir:UTF-8 mail_prefetch_count = 99 namespace { inbox = yes location = prefix = separator = / } passdb { driver = pam } protocols = imap lmtp service imap { drop_priv_before_exec = yes } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } ssl_cert = </usr/local/etc/dovecot/cert.pem ssl_key = # hidden, use -P to show it userdb { driver = passwd } protocol lmtp { auth_username_format = %n } ]]] [[[ # Baseline % rm -rf /home/fmsync/Maildir % rm -rf /home/fmsync/imapcdir % rm -rf /mnt/rawlog % mkdir /mnt/rawlog % mdmfs -s 1024m auto /mnt/rawlog # mount a tmpfs % chown fmsync /mnt/rawlog # doveadm -o mail_fsync=never backup -u fmsync -s "" -l 15 -R -m lists/zsh imapc:/home/fmsync/imapcdir | sponge state.out dsync(fmsync): Info: imapc(imap.fastmail.com:993): Connected to 66.111.4.135:993 (local 192.168.122.253:56226) # doveadm -o mail_fsync=never backup -u fmsync -s "$(cat state.out)" -l 15 -R -m lists/zsh imapc:/home/fmsync/imapcdir | sponge state.out dsync(fmsync): Info: imapc(imap.fastmail.com:993): Connected to 66.111.4.136:993 (local 192.168.122.253:39150) % openssl s_client -verify_return_error -connect imap.fastmail.com:imaps ⋮ b EXAMINE lists/zsh * 24117 EXISTS * 1 RECENT * FLAGS (\Answered \Flagged \Draft \Deleted \Seen $X-ME-Annot-2 $IsMailingList $IsNotification $HasAttachment $HasTD hasnoatt hasnotd hasatt $X-ME-Annot-1 Old $NotJunk $Junk $Forwarded) * OK [PERMANENTFLAGS ()] Ok * OK [UNSEEN 1759] Ok * OK [UIDVALIDITY 1529153257] Ok * OK [UIDNEXT 24289] Ok * OK [HIGHESTMODSEQ 4910711] Ok * OK [URLMECH INTERNAL] Ok * OK [ANNOTATIONS 65536] Ok b OK [READ-ONLY] Completed c CLOSE c OK Completed ]]] [[[ # In another terminal % swaks -t lists.zsh@… ⋮ <- 250 2.0.0 Ok: queued as 48CjYx6xvmzWp ⋮ ]]] [[[ # Back in s_client d EXAMINE lists/zsh * 24118 EXISTS * 2 RECENT * FLAGS (\Answered \Flagged \Draft \Deleted \Seen $X-ME-Annot-2 $IsMailingList $IsNotification $HasAttachment $HasTD hasnoatt hasnotd hasatt $X-ME-Annot-1 Old $NotJunk $Junk $Forwarded) * OK [PERMANENTFLAGS ()] Ok * OK [UNSEEN 1759] Ok * OK [UIDVALIDITY 1529153257] Ok * OK [UIDNEXT 24290] Ok * OK [HIGHESTMODSEQ 4910779] Ok * OK [URLMECH INTERNAL] Ok * OK [ANNOTATIONS 65536] Ok d OK [READ-ONLY] Completed e CLOSE e OK Completed ]]] [[[ # doveadm -o imapc_rawlog_dir=/mnt/rawlog -Dv backup -u fmsync -s "$(cat state.out)" -l 15 -R -m lists/zsh imapc:/home/fmsync/imapcdir | sponge state.out Debug: Loading modules from directory: /usr/local/lib/dovecot/doveadm Debug: Skipping module doveadm_acl_plugin, because dlopen() failed: /usr/local/lib/dovecot/doveadm/lib10_doveadm_acl_plugin.so: Undefined symbol "acl_user_module" (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/local/lib/dovecot/doveadm/lib10_doveadm_expire_plugin.so: Undefined symbol "expire_set_init" (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_quota_plugin, because dlopen() failed: /usr/local/lib/dovecot/doveadm/lib10_doveadm_quota_plugin.so: Undefined symbol "quota_user_module" (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_plugin, because dlopen() failed: /usr/local/lib/dovecot/doveadm/lib20_doveadm_fts_plugin.so: Undefined symbol "fts_list_backend" (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen() failed: /usr/local/lib/dovecot/doveadm/libdoveadm_mail_crypt_plugin.so: Undefined symbol "mail_crypt_user_get_public_key" (this is usually intentional, so just ignore this message) doveadm(fmsync)<966><>: Debug: auth-master: userdb lookup(fmsync): Started userdb lookup doveadm(fmsync)<966><>: Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Connecting doveadm(fmsync)<966><>: Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb (uid=0): Client connected (fd=10) doveadm(fmsync)<966><>: Debug: auth-master: userdb lookup(fmsync): auth USER input: fmsync system_groups_user=fmsync uid=1002 gid=1002 home=/home/fmsync doveadm(fmsync)<966><>: Debug: auth-master: userdb lookup(fmsync): Finished userdb lookup (username=fmsync system_groups_user=fmsync uid=1002 gid=1002 home=/home/fmsync) doveadm(fmsync): Debug: Effective uid=1002, gid=1002, home=/home/fmsync doveadm(fmsync): Debug: Namespace : type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir:UTF-8 doveadm(fmsync): Debug: maildir++: root=/home/fmsync/Maildir, index=, indexpvt=, control=, inbox=/home/fmsync/Maildir, alt= doveadm(fmsync): Debug: brain M: Imported mailbox states: doveadm(fmsync): Debug: brain M: Mailbox $guid1 state: uidvalidity=1529153257 uid=24288 modseq=4910711 pvt_modseq=0 messages=24117 changes_during_sync=0 doveadm(fmsync): Debug: brain M: Namespace has location maildir:~/Maildir:UTF-8 doveadm(fmsync): Debug: Namespace : Using permissions from /home/fmsync/Maildir: mode=0700 gid=default dsync(fmsync): Debug: Effective uid=1002, gid=1002, home=/home/fmsync dsync(fmsync): Debug: Namespace : type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=imapc:/home/fmsync/imapcdir dsync(fmsync): Debug: imapc(imap.fastmail.com:993): Created new connection dsync(fmsync): Debug: imapc(imap.fastmail.com:993): Looking up IP address (reconnect_ok=true, last_connect=1580957435) dsync(fmsync): Debug: imapc(imap.fastmail.com:993): Connecting to 66.111.4.135:993 dsync(fmsync): Info: imapc(imap.fastmail.com:993): Connected to 66.111.4.135:993 (local 192.168.122.253:59074) dsync(fmsync): Debug: imapc(imap.fastmail.com:993): Starting SSL handshake dsync(fmsync): Debug: imapc(imap.fastmail.com:993): SSL handshake successful dsync(fmsync): Debug: imapc(imap.fastmail.com:993): Server capabilities: IMAP4 IMAP4rev1 LITERAL+ ENABLE UIDPLUS SASL-IR NAMESPACE CONDSTORE SORT LIST-EXTENDED QRESYNC MOVE SPECIAL-USE CREATE-SPECIAL-USE IDLE AUTH=PLAIN dsync(fmsync): Debug: imapc(imap.fastmail.com:993): Authenticating as ... dsync(fmsync): Debug: imapc(imap.fastmail.com:993): Server capabilities: IMAP4rev1 LITERAL+ ID ENABLE ACL RIGHTS=kxten QUOTA MAILBOX-REFERRALS NAMESPACE UIDPLUS NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY CATENATE CONDSTORE ESEARCH SEARCH=FUZZY SORT SORT=MODSEQ SORT=DISPLAY SORT=UID THREAD=ORDEREDSUBJECT THREAD=REFERENCES THREAD=REFS ANNOTATE-EXPERIMENT-1 METADATA LIST-EXTENDED LIST-STATUS LIST-MYRIGHTS LIST-METADATA WITHIN QRESYNC SCAN XLIST XMOVE MOVE SPECIAL-USE CREATE-SPECIAL-USE DIGEST=SHA1 X-REPLICATION STATUS=SIZE OBJECTID SAVEDATE X-CREATEDMODSEQ PREVIEW=FUZZY XAPPLEPUSHSERVICE LOGINDISABLED XCONVERSATIONS COMPRESS=DEFLATE X-QUOTA=STORAGE X-QUOTA=MESSAGE X-QUOTA=X-ANNOTATION-STORAGE X-QUOTA=X-NUM-FOLDERS IDLE dsync(fmsync): Debug: imapc(imap.fastmail.com:993): Authenticated successfully dsync(fmsync): Debug: imapc: root=/home/fmsync/imapcdir, index=, indexpvt=, control=, inbox=, alt= dsync(fmsync): Debug: maildir++: root=/home/fmsync/imapcdir, index=, indexpvt=, control=, inbox=, alt= dsync(fmsync): Debug: brain M: Locking done locally in /home/fmsync/.dovecot-sync.lock (local hostname=imapmirror.v.shahaf.local2, remote hostname=imapmirror.v.shahaf.local2) dsync(fmsync): Debug: brain S: Namespace has location imapc:/home/fmsync/imapcdir dsync(fmsync): Debug: Namespace : Using permissions from /home/fmsync/imapcdir: mode=0700 gid=default dsync(fmsync): Debug: brain M: Local mailbox tree: lists guid=00000000000000000000000000000000 uid_validity=0 uid_next=0 subs=no last_change=0 last_subs=0 dsync(fmsync): Debug: brain S: Local mailbox tree: lists guid=00000000000000000000000000000000 uid_validity=0 uid_next=0 subs=no last_change=0 last_subs=0 dsync(fmsync): Debug: brain M: Local mailbox tree: lists/zsh guid=$guid1 uid_validity=1529153257 uid_next=24289 subs=yes last_change=0 last_subs=1580956711 dsync(fmsync): Debug: brain S: Local mailbox tree: lists/zsh guid=$guid1 uid_validity=1529153257 uid_next=24290 subs=yes last_change=0 last_subs=0 dsync(fmsync): Debug: brain M: Remote mailbox tree: lists guid=00000000000000000000000000000000 uid_validity=0 uid_next=0 subs=no last_change=0 last_subs=0 dsync(fmsync): Debug: brain M: Remote mailbox tree: lists/zsh guid=$guid1 uid_validity=1529153257 uid_next=24290 subs=yes last_change=0 last_subs=0 dsync(fmsync): Debug: brain S: Remote mailbox tree: lists guid=00000000000000000000000000000000 uid_validity=0 uid_next=0 subs=no last_change=0 last_subs=0 dsync(fmsync): Debug: brain S: Remote mailbox tree: lists/zsh guid=$guid1 uid_validity=1529153257 uid_next=24289 subs=yes last_change=0 last_subs=1580956711 dsync(fmsync): Debug: brain M: Mailbox lists: local=00000000000000000000000000000000/0/0, remote=00000000000000000000000000000000/0/0: Directory name paths are equal dsync(fmsync): Debug: brain M: Mailbox lists/zsh: local=$guid1/0/1, remote=$guid1/0/1: Mailboxes are equal dsync(fmsync): Debug: brain S: Mailbox lists: local=00000000000000000000000000000000/0/0, remote=00000000000000000000000000000000/0/0: Directory name paths are equal dsync(fmsync): Debug: brain S: Mailbox lists/zsh: local=$guid1/0/1, remote=$guid1/0/1: Mailboxes are equal dsync(fmsync): Debug: brain M: Skipping mailbox $guid1 with unchanged state uidvalidity=1529153257 uidnext=24289 highestmodseq=4910711 highestpvtmodseq=0 messages=24117 dsync(fmsync): Debug: imapc(imap.fastmail.com:993): Disconnected dsync(fmsync): Debug: brain M: Exported mailbox states: dsync(fmsync): Debug: brain M: Mailbox $guid1 state: uidvalidity=1529153257 uid=24288 modseq=4910711 pvt_modseq=0 messages=24117 changes_during_sync=0 dsync(fmsync): Debug: brain M: Unlocked /home/fmsync/.dovecot-sync.lock dsync(fmsync): Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb (uid=0): Disconnected: Connection closed (fd=10) % grep -v LOGIN < /mnt/rawlog/20200206-025036.966.1.out 1580957437.093905 1 CAPABILITY 1580957437.403048 3 LIST "" "" 1580957437.550179 4 LIST "" "*" 1580957437.725211 5 STATUS "lists/zsh" (UIDNEXT UIDVALIDITY) 1580957437.874174 6 LSUB "" "*" 1580957438.184244 7 LOGOUT % grep -w -B 2 5 < /mnt/rawlog/20200206-025036.966.1.in 1580957437.705302 4 OK Completed (...) 1580957437.869540 * STATUS lists/zsh (UIDNEXT 24290 UIDVALIDITY 1529153257) 1580957437.869540 5 OK Completed % doveadm search -u fmsync mailbox lists/zsh HEADER Received 48CjYx6xvmzWp | wc -l 0 % ]]] [[[ # Back in s_client: f EXAMINE lists/zsh ⋮ g UID SEARCH HEADER Received 48CjYx6xvmzWp * SEARCH 24289 g OK Completed (1 msgs in 5.268 secs) ]]] So, my question is: Why doesn't «doveadm backup» sync the new message? (Message number 24118, UID 24289, ESMTP ID 48CjYx6xvmzWp) Cheers, Daniel ¹ https://svn.freebsd.org/ports/head/mail/dovecot

1 2

.IMAP
by Jos Chrispijn 15 Feb '20

15 Feb '20

Dear team, I have my users in /usr/home/user1 for user1, user2 for user2 etc. As these users also have a website, these folders have a /usr/home/user1/www folder, which is the docroot of their website. What happens now is that Dovecot indexes also this /usr/home/user1/www folder and creates in every folder a .imap folder which content is an exact image of the folder it is created in. In practice this causes 2 times of webspace (which also in on the account of that user). Can you pls tell me what I do wrong and how to solve this? I might be missing an 'exclude' folder setting for each dovecot user. Thanks for you expertise, Jos

3 4

Dovecot 2.3 repo for CentOS 8.
by Reio Remma 15 Feb '20

15 Feb '20

Hello! Are there any plans for an official Dovecot repo for CentOS 8? Thanks, Reio

7 10

Very slow mail download/notification with dovecot 2.2.33 and Thunderbird
by ml_dovecot＠thorsten-reichelt.de 15 Feb '20

15 Feb '20

Hi! I know that there are many results if I search for "dovecot thunderbird very slow" on Google but none of them helped me with my problem. :( I am running Ubuntu 18.04 (4GB RAM, 40GB HDD with EXT4) with the following software: - Dovecot 2.2.33 ---- All accounts are using Maildir ---- Sieve filters - Postfix 3.3.0 ---- with opendkim, spamassassin, razor, pyzor, .... And as IMAP client I am using Thunderbird 68.4 on Windows10. Sieve is used to sort incoming mails into my 224 folders (56 INBOX. folders and its subfolders (output of "find .INBOX.* -maxdepth 4 -type d -print |wc -l")). My problem is that it takes very very long to synchonize the INBOX and its subfolders. Even if there are only a few new messages to be downloaded. Sometimes Thunderbird outputs something like "downloading message 1 of 19" and it takes at least 60 seconds to download all of them. None of these 19 mails is larger than 5kB. And sometimes it seems that the transfer is suspended for a long time and it takes >5 Minutes to synchronize only a few mails. :( Every helpful advice is welcome. I just don't know where to look for the cause right now, but I can provide configurations (like output of |doveadm config) |and some logfiles. Thank you very much! Thorsten

2 1

Dovecot Proxy - Oauth2 mech add custom fields
by Domenico Pastore 14 Feb '20

14 Feb '20

Hi, I have a problem with configuring dovecot passdb for Oauth2 with keyclock. A user can access more mailbox, mailboxes are associated with the user. When a user login with this method: OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ AUTH=PLAIN] Dovecot ready. a login mailbox*user password Dovecot when requiring the grant_url send to Keyclock, for example, this post (I have already enabled raw_log for analysis): grant_type=password&username=domenico&password=test&client_id=imap-client&client_secret=99e26b26-0f2a-4b64-8f57-c0ca2147d3a0&scope=emailPOST /auth/realms/example/protocol/openid-connect/token/introspect The call pass to Keyclock only master_user and miss mailbox info. In fact, the JSON response after login return the only username without mailbox: [...] "scope": "profile email", "email_verified": false, "preferred_username": "dome.nico" [...] When Dovecot proxy connects to the backend, email attribute and user have the same value, master-user. This behavior is a problem because when backend tries login access, login with the user and not with the mailbox. This is backend logging: 2020-02-13 19:34:13 auth: Debug: client passdb out: OK 1 user=domenico token=eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICJYVy1fSmNnVkF3aW9GUXh1NUhwdjVlbk5uNU8zaW42Y1VpaGJsM2dWX0V3In0.eyJqdGkiOiJhYTMwZ Dk0Yy0xNjE0LTQzN2QtOTA5Zi01ZTAwNGQ2YjNmZTIiLCJleHAiOjE1ODE2MTE5NTQsIm5iZiI6MCwiaWF0IjoxNTgxNjExNjU0LCJpc3MiOiJodHRwczovL2tleWNsb2FrLXBlYy1pYW0ucGVjLWFwcHMucGFyLXRlYy5pdC9hdXRoL3JlYWxtcy9wZWMiLCJhdWQiOiJhY2NvdW50Iiwi c3ViIjoiZjphNTA1NWUzMi1lYzhkLTRmZjgtOWZjNS00ODM4MmQ1MzRhODc6ZG9tZS5uaWNvIiwidHlwIjoiQmVhcmVyIiwiYXpwIjoiaW1hcC1jbGllbnQiLCJhdXRoX3RpbWUiOjAsInNlc3Npb25fc3RhdGUiOiIyN2M0ZDMzYy01YjdlLTQzMWMtYjZmMi0yYmI4NjIzYzMyMjkiLCJ hY3IiOiIxIiwicmVhbG1fYWNjZXNzIjp7InJvbGVzIjpbIm9mZmxpbmVfYWNjZXNzIiwidW1hX2F1dGhvcml6YXRpb24iXX0sInJlc291cmNlX2FjY2VzcyI6eyJhY2NvdW50Ijp7InJvbGVzIjpbIm1hbmFnZS1hY2NvdW50IiwibWFuYWdlLWFjY291bnQtbGlua3MiLCJ2aWV3LXByb2 ZpbGUiXX19LCJzY29wZSI6InByb2ZpbGUgZW1haWwiLCJlbWFpbF92ZXJpZmllZCI6ZmFsc2UsInByZWZlcnJlZF91c2VybmFtZSI6ImRvbWUubmljbyJ9.LlIx-QeRQPr3lK4Cs1vU0qMvHF3uq3h15BGi1atNCBASkM6oPoYWLV-sYdf8hzpRFyOaTcbxN53SN6LfD0hHvUZ2sKHxh7UJ idmxS4hf1SsZq8wJTASpebcPLtBIX5JBvXmpxa-cVnZDE1JVw5np5-LLNs0j4sgHwgg85mJEoE2VmYJzbGZjUsSTvaAAoCbvTA0MfsNoKyq0E5JrLVdkI-twX7HjAESFqFD4yHe7BS4FG_UjddrSr3uXmXreB44VLZ8B4xBgVRjK9K-sjjkXT8Bkv8WbxUdEEHaarWU_qanI5DlhA0CZXlJ CyDsNcRwQfwVHOESxXE7ehgIDPm-NjA I have a mechanism for adding other attributes with Dovecot when calling Keyclock? This for insert email or other fields into the token. Thanks all, Domenico ——— Dovecot Frontend # 2.3.9.2 (cf2918cac): /config/dovecot/dovecot-proxy/dovecot.conf # OS: Linux 3.10.0-693.17.1.el7.x86_64 x86_64 CentOS Linux release 7.4.1708 (Core) # Hostname: fe-new.example.it auth_debug = yes auth_debug_passwords = yes auth_master_user_separator = * auth_verbose = yes auth_verbose_passwords = yes base_dir = /data/dovecot/var/run/dovecot-proxy default_vsz_limit = 768 M disable_plaintext_auth = no first_valid_gid = 101 first_valid_uid = 102 imap_id_send = import_environment = TZ MASTERPWD info_log_path = /LOGS/imap/dovecot-proxy.log instance_name = dovecot-proxy listen = fe-new_imap log_path = /LOGS/imap/dovecot-proxy.log log_timestamp = "%Y-%m-%d %H:%M:%S " mail_gid = 101 mail_location = maildir:%h/Maildir mail_max_userip_connections = 50 mail_plugins = quota expire mail_log notify mail_uid = 102 maildir_broken_filename_sizes = yes mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = INBOX. separator = . subscriptions = yes type = private } passdb { args = /config/dovecot/dovecot-proxy/dovecot-oauth2.conf driver = oauth2 master = yes mechanisms = plain login } plugin { mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size } postmaster_address = posta(a)foo.it protocols = imap pop3 service anvil { client_limit = 3000 } service auth { client_limit = 4096 unix_listener auth-userdb { mode = 0600 } } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } process_limit = 2500 process_min_avail = 5 } service imap { drop_priv_before_exec = yes process_limit = 2500 process_min_avail = 5 } service lmtp { inet_listener lmtp { port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 0 service_count = 1 vsz_limit = 64 M } service managesieve { drop_priv_before_exec = yes process_limit = 1024 } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 995 ssl = yes } process_limit = 300 process_min_avail = 5 } service pop3 { drop_priv_before_exec = yes process_limit = 300 process_min_avail = 5 } ssl_cert = </certs/cert-selfsigned.crt ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL:!RC4::!3DES:!IDEA ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it protocol lmtp { mail_plugins = quota expire mail_log notify } protocol lda { mail_plugins = quota expire mail_log notify } protocol imap { mail_plugins = quota imap_quota mail_log notify } protocol pop3 { mail_plugins = quota mail_log notify pop3_uidl_format = UID%u-%v } -> /config/dovecot/dovecot-proxy/dovecot-oauth2.conf grant_url = https://keycloak-iam.apps.example.com/auth/realms/example/protocol/openid-c… use_grant_password = yes introspection_mode = post introspection_url = https://keycloak-iam.apps.example.com/auth/realms/example/protocol/openid-c… username_attribute = username username_format = %Lu tls_ca_cert_file = /etc/ssl/certs/ca-certificates.crt active_attribute = active active_value = true scope = email send_auth_headers = yes debug = yes rawlog_dir = /LOGS/imap/oauth2/ client_id = imap-client client_secret = 99e26b26-0f2a-4b64-8f57-c0ca2147d3a0 pass_attrs = host=192.160.10.4 proxy=y proxy_mech=xoauth2 pass=%{oauth2:access_token}

1 0

Dovecot process died with assertion failed
by TACHIBANA Masashi 13 Feb '20

13 Feb '20

Hi, I'm testing Dovecot v2.3.9.2. So, I found a problem that a Dovecot process termed with Panic, like below: Feb 10 08:50:09 imap(user1(a)example.com)<38440><p9ec0zSeSIQKEAIK>: Panic: file message-snippet.c: line 71 (snippet_add_content): assertion failed: (*count_r <= size) Feb 10 08:50:09 imap(user1(a)example.com)<38440><p9ec0zSeSIQKEAIK>: Error: Raw backtrace: /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(backtrace_append+0x3b) [0x7fee4c46331b] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7fee4c46346e] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(+0xfc90b) [0x7fee4c46f90b] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(+0xfc9c1) [0x7fee4c46f9c1] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fee4c3b470a] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(+0xdea53) [0x7fee4c451a53] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(+0xdcd98) [0x7fee4c80bd98] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(+0xdd1a5) [0x7fee4c80c1a5] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(index_mail_get_special+0x2c1) [0x7fee4c80c591] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(dbox_mail_get_special+0x48) [0x7fee4c7adeb8] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(+0x78f2b) [0x7fee4c7a7f2b] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot-storage.so.0(mail_get_special+0x10) [0x7fee4c76f3e0] -> dovecot-backend-server/imap [user1(a)example.com 10.16.2.10 UID FETCH](+0x2645b) [0x55ffc6c5845b] -> dovecot-backend-server/imap [user1(a)example.com 10.16.2.10 UID FETCH](+0x239df) [0x55ffc6c559df] -> dovecot-backend-server/imap [user1(a)example.com 10.16.2.10 UID FETCH](imap_fetch_more+0x35) [0x55ffc6c578b5] -> dovecot-backend-server/imap [user1(a)example.com 10.16.2.10 UID FETCH](cmd_fetch+0x35f) [0x55ffc6c44aaf] -> dovecot-backend-server/imap [user1(a)example.com 10.16.2.10 UID FETCH](command_exec+0xb9) [0x55ffc6c535b9] -> dovecot-backend-server/imap [user1(a)example.com 10.16.2.10 UID FETCH](+0x1eacf) [0x55ffc6c50acf] -> dovecot-backend-server/imap [user1(a)example.com 10.16.2.10 UID FETCH](+0x1eb87) [0x55ffc6c50b87] -> dovecot-backend-server/imap [user1(a)example.com 10.16.2.10 UID FETCH](client_handle_input+0x215) [0x55ffc6c51885] -> dovecot-backend-server/imap [user1(a)example.com 10.16.2.10 UID FETCH](client_input+0x7e) [0x55ffc6c5206e] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x7b) [0x7fee4c48bcdb] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x105) [0x7fee4c48dd55] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x59) [0x7fee4c48bde9] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fee4c48c098] -> /usr/local/dovecot-2.3.9.2/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fee4c3e9623] -> dovecot-backend-server/imap [user1(a)example.com 10.16.2.10 UID FETCH](main+0x367) [0x55ffc6c40d37] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fee4bfc7545] -> dovecot-backend-server/imap [user1(a)example.com 10.16.2.10 UID FETCH](+0xefb4) [0x55ffc6c40fb4] Feb 10 08:50:09 imap(user1(a)example.com)<38440><p9ec0zSeSIQKEAIK>: Fatal: master: service(imap): child 38440 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps) It was occurred this by a mail had ISO-2022-JP content (Single part mail). I saw that the mail was not strange. When I appended the mail with IMAP APPEND command, that no problem happened. I think the problem comes by LMTP only. Any idea? Regards, -- Tachibana, Masashi QUALITIA CO., LTD. mailto:tachibana@qualitia.co.jp https://www.qualitia.co.jp/

1 1

Shared Mailboxes with Multiple Domains
by Daniel Miller 13 Feb '20

13 Feb '20

Trying to track down a problem I've been dealing with for a while. Everything else works fine - the problem is with shared mailboxes. My present, and desired, prefix for the shared namespace is: prefix = INBOX/shared/%%d/%%n/ Some mail clients, particularly Thunderbird and Android's AquaMail, have no problem with this. But other (presumably broken) clients don't show the shared mailboxes. This includes EM Client and Webmail Lite. Actually, Webmail Lite lists the mailboxes in the subscription window, but then the "live" folder list shows "shared" and "shared/domain" but none of the shared mailboxes below the domain. Changing to: prefix = INBOX/shared/%%u/ Works across all clients - but I'd rather have the domain separation. Testing with telnet ". LIST '' '*'" yields the full list with either config. The files /var/mail/%d/shared-mailboxes contain entries like: shared/shared-boxes/group/allshared/user(a)domain.com 1 Below is "doveconf -n" output. # 2.3.9.3 (9f41b88fa): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.9 (db4e9a2f) # OS: Linux 5.3.0-28-generic x86_64 Ubuntu 18.04.4 LTS # Hostname: bubba.amfes.lan auth_cache_size = 4 k auth_master_user_separator = * auth_mechanisms = plain login auth_policy_hash_nonce = # hidden, use -P to show it auth_policy_hash_truncate = 8 auth_policy_server_api_header = Authorization: Basic d2ZvcmNlOnVsdHJhLXNlY3JldC1zZWN1cmUtc2FmZQ default_login_user = nobody default_vsz_limit = 2 G disable_plaintext_auth = no imap_client_workarounds = tb-extra-mailbox-sep imap_idle_notify_interval = 29 mins listen = * login_trusted_networks = 192.168.0.0/24 mail_attachment_hash = %{sha512} mail_plugins = fts fts_solr acl zlib virtual mail_prefetch_count = 10 mail_shared_explicit_inbox = yes managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext mdbox_rotate_size = 20 M namespace archives { list = children location = mdbox:/var/mail/%d/%n/Archives/mdbox mailbox Unsorted { auto = no special_use = \Archive } prefix = INBOX/Archives/ separator = / subscriptions = no type = private } namespace inbox { hidden = no inbox = yes list = yes location = mailbox "Deleted Messages" { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Items" { auto = no special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Trash { auto = subscribe autoexpunge = 30 days special_use = \Trash } prefix = INBOX/ separator = / subscriptions = no type = private } namespace lists { list = children location = mdbox:/var/mail/%d/%n/Lists/mdbox prefix = INBOX/Lists/ separator = / subscriptions = no type = private } namespace subscriptions { hidden = yes list = no location = prefix = subscriptions = yes } namespace usershares { list = children location = sdbox:/var/mail/%%d/%%n/sdbox:NO-NOSELECT prefix = INBOX/shared/%%d/%%n/ separator = / subscriptions = no type = shared } namespace virtual { list = children location = virtual:/var/mail/%d/%n/virtual mailbox Flagged { comment = All my flagged messages special_use = \Flagged } prefix = INBOX/virtual/ separator = / subscriptions = no } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_shared_dict = file:/var/mail/%d/shared-mailboxes fts = solr fts_autoindex = yes fts_autoindex_exclude = \Trash fts_autoindex_exclude2 = \Junk fts_autoindex_exclude3 = \Spam fts_enforced = no fts_index_timeout = 20s fts_solr = url=http://127.0.0.1:8983/solr/dovecot/ mailbox_alias_new = Sent Messages mailbox_alias_new2 = Sent Items mailbox_alias_new3 = Deleted Messages mailbox_alias_old = Sent mailbox_alias_old2 = Sent mailbox_alias_old3 = Trash sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = imap lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = mail mode = 0600 user = vmail } } service dict { unix_listener dict { group = mail mode = 0660 user = vmail } } service imap-login { process_min_avail = 10 service_count = 1 } service imap-postlogin { executable = script-login /usr/local/etc/dovecot/post-login.sh user = $default_internal_user } service imap { executable = imap imap-postlogin vsz_limit = 4 G } service indexer-worker { process_limit = 3 } service lmtp { process_min_avail = 5 unix_listener /var/spool/postfix/private/dovecot-lmtp { group = mail mode = 0666 user = vmail } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } process_min_avail = 0 service_count = 1 } ssl_cert = </etc/ssl/letsencrypt/live/mail.amfes.com/fullchain.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = prefetch } userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } verbose_proctitle = yes protocol lmtp { mail_plugins = fts fts_solr acl zlib virtual sieve postmaster_address = postmaster(a)amfes.com } protocol lda { mail_plugins = fts fts_solr acl zlib virtual sieve } protocol imap { mail_max_userip_connections = 50 mail_plugins = fts fts_solr acl zlib virtual imap_acl imap_zlib mailbox_alias } -- Daniel

1 0

[FOR THE RECORD] CLIENTID Extension for IMAP/SMTP AUTH in dovecot
by Michael Peddemors 12 Feb '20

12 Feb '20

More and more email clients are now starting to support the CLIENTID extension for IMAP, including 'libetpan', SaneBox, BlueMail, and now as of Thunderbird 68.5.0, available there as well. This allows for a form of native two factor support, permission token, and/or access control to prevent the unauthorized use of email address and password. (For more information, please see the RFC Drafts, or reach out to us off list for details) While the version of dovecot we use has supported it for some time now, we would like to make it available for more email providers who use dovecot. For the record, for those interested in having your dovecot support transparent multi-factor, in your implementation, you will have to compile it with the patch listed in: https://github.com/dovecot/core/pull/86 Once that is done, please feel free to reach out to us for the dovecot plugin, that enables CLIENTID to be supported in the IMAP protocol. -- "Catch the Magic of Linux..." ------------------------------------------------------------------------ Michael Peddemors, President/CEO LinuxMagic Inc. Visit us at http://www.linuxmagic.com @linuxmagic A Wizard IT Company - For More Info http://www.wizard.ca "LinuxMagic" a Registered TradeMark of Wizard Tower TechnoServices Ltd. ------------------------------------------------------------------------ 604-682-0300 Beautiful British Columbia, Canada This email and any electronic data contained are confidential and intended solely for the use of the individual or entity to which they are addressed. Please note that any views or opinions presented in this email are solely those of the author and are not intended to represent those of the company.

1 0

Doveadm Sync problem with symbolic folders
by Gianluca Scaglia 12 Feb '20

12 Feb '20

Hi, i have two servers (debian 10) that synchronize the emails bidirectionally with Doveadm Sync (dovecot 2.3.4.1). Before updating to debian 10, then with dovecot 2.2, I could also synchronize symbolic folders (made with ln-s) without any problems. Now, however, it continues to create temporary folders (e.g. Sent-temp-1 etc.) and I am forced to stop synchronization. Is there any way to make Doveadm Sync ignore symbolic folders? Thanks a lot, Luca Scaglia

1 0

feature request for setting alternative pidfile
by Bjoern Jacke 12 Feb '20

12 Feb '20

Hi, because of an unsupported combination of configuration parameters for different dovecot services I looked into setting up two dovecot instances with different configurations on the same host. It looks like running two different dovecot instances on the same host is not easily possible because the pidfile seems to be hard-coded and there is no way to tell dovecot to use a different one, right? It would be great if this could be made customizable. Björn

2 2

tcpwraper errors with v2.3.9.3
by Bobber 12 Feb '20

12 Feb '20

My system was working fine with version 2.3.9.2. I upgraded to 2.3.9.3 and I am getting tcpwraper errors: > imap-login: Error: connect(tcpwrap) failed: No such file or directory Here's my config: > login_access_sockets = tcpwrap > > service tcpwrap { > unix_listener login/tcpwrap { > group = $default_login_user > mode = 0600 > user = $default_login_user > } > } Any ideas what's happening? -- Bob Wooldridge

1 0

tcpwraper errors with v2.3.9.3
by Robert A Wooldridge 12 Feb '20

12 Feb '20

My system was working fine with version 2.3.9.2. I upgraded to 2.3.9.3 and I am getting tcpwraper errors: > imap-login: Error: connect(tcpwrap) failed: No such file or directory Here's my config: > login_access_sockets = tcpwrap > > service tcpwrap { > unix_listener login/tcpwrap { > group = $default_login_user > mode = 0600 > user = $default_login_user > } > } Any ideas what's happening? -- Bob Wooldridge EDM Incorporated

1 0

Dovecot/doveadm quota
by Martynas Bendorius 12 Feb '20

12 Feb '20

Hello, Is there any reason why dovecot relies on S= instead of real disk size email takes? 1) compressed mails take less than than the S= specified 2) we could avoid using "S=" for the lookups and count every file there, including indexes and mails without S=... if we'd read filesizes Eample: # ls -l '1567026317.M331058P4751.testing.server.com,S=3086,W=3148:2,S' -rw------- 1 dev mail 1274 Aug 29 00:05 1567026317.M331058P4751.testing.server.com,S=3086,W=3148:2,S Proposed patch (solves #1, not sure about your opinion on #2): --- src/plugins/quota/quota-maildir.c.orig 2020-02-05 19:21:08.582998417 -0700 +++ src/plugins/quota/quota-maildir.c 2020-02-05 19:21:22.184998798 -0700 @@ -84,7 +84,7 @@ p = strstr(dp->d_name, ",S="); num = (uoff_t)-1; - if (p != NULL) { + if (0 && p != NULL) { /* ,S=nnnn[:,] */ p += 3; for (num = 0; *p >= '0' && *p <= '9'; p++) @@ -104,7 +104,7 @@ str_truncate(path, len); str_append(path, dp->d_name); if (stat(str_c(path), &st) == 0) { - *total_bytes += st.st_size; + *total_bytes += st.st_blocks * 512; *total_count += 1; } else if (errno != ENOENT && errno != ESTALE) { *error_r = t_strdup_printf( Thank you! -- Best regards, Martynas Bendorius

3 4

Dovecot v2.3.9.3 released
by Aki Tuomi 12 Feb '20

12 Feb '20

We are pleased to release v2.3.9.3 of Dovecot. Please find it from locations below https://dovecot.org/releases/2.3/dovecot-2.3.9.3.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.9.3.tar.gz.sig Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot --- v2.3.9.3 2019-02-12 Aki Tuomi <aki.tuomi(a)open-xchange.com> * CVE-2020-7046: Truncated UTF-8 can be used to DoS submission-login and lmtp processes. * CVE-2020-7957: Specially crafted mail can crash snippet generation.

2 2

CVE-2020-7046: Truncated UTF-8 can be used to DoS submission-login and lmtp processes
by Aki Tuomi 12 Feb '20

12 Feb '20

Open-Xchange Security Advisory 2020-02-12 Affected product: Dovecot Core Internal reference: DOV-3744 (JIRA ID) Vulnerability type: Improper Input Validation (CWE-30) Vulnerable version: 2.3.9 Vulnerable component: submission-login, lmtp Fixed version: 2.3.9.3 Report confidence: Confirmed Solution status: Fixed Researcher credits: Open-Xchange oy Vendor notification: 2020-01-14 CVE reference: CVE-2020-7046 CVSS: 7.5 (CVSS3.1:AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Vulnerability Details: lib-smtp doesn't handle truncated command parameters properly, resulting in infinite loop taking 100% CPU for the process. This happens for LMTP (where it doesn't matter so much) and also for submission-login where unauthenticated users can trigger it. Risk: Attacker can cause submission-login and lmtp processes to be exhausted, leading into denial of service and CPU resource exhaustion. Solution: Upgrade to 2.3.9.3.

1 0

CVE-2020-7957: Specially crafted mail can crash snippet generation
by Aki Tuomi 12 Feb '20

12 Feb '20

Open-Xchange Security Advisory 2020-02-12 Affected product: Dovecot Core Internal reference: DOV-3743 (JIRA ID) Vulnerability type: Improper Input Validation (CWE-30) Vulnerable version: 2.3.9 Vulnerable component: lmtp, imap Fixed version: 2.3.9.3 Report confidence: Confirmed Solution status: Fixed Researcher credits: Open-Xchange oy Vendor notification: 2020-01-14 CVE reference: CVE-2020-7957 CVSS: 3.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L) Vulnerability Details: Snippet generation crashes if: message is large enough that message-parser returns multiple body blocks The first block(s) don't contain the full snippet (e.g. full of whitespace) input ends with '>' Risk: Sending specially crafted email can cause mailbox to have permanently unaccessible mail, or the mail can be stuck in delivery. Solution: Upgrade to 2.3.9.3

1 0

Folders disappears and all mail lost
by Gabriele Fain 11 Feb '20

11 Feb '20

Hello, I have a Dovecot 2.2.22 configured with mdbox storage. THe server have about 50 mailboxes configured. Only in one mailbox I have a strange problem, sometime (in the last 2 month happens 3 times). All the mail (Except INBOX) and all folders disappear. THe space on disk remain allocated. To this mailbox are connected 3 computers (2 PC Windows 10, and 1 Mac OS). I cannot determine who and why this happens to this mailbox. Can someone tellme how I can find the PC that delete all mail.

2 1

[v 2.3.4.1][quota] recalculation
by Thomas Criscione 11 Feb '20

11 Feb '20

Hello, I can't find the information on the wiki :( When is the quota recalculated after a mail deletion ? For instance, I am running low of storage and I use Thunderbird to delete large mail. I only notice a recalculation when I quit Thunderbirdb and I relaunch it. Even, with doveadm CLI, as long as Thunderbird is not disconnected on the client side, the server didn't recalculate the storage available. Thanks for the help ! Thomas -- Thomas Criscione https://thomascriscione.fr GPG: E521 FFF0 13C4 52FB 55EB 8C49 EBDD 0DC6 1ED9 2A4F

3 4

starttls for some services only
by Bjoern Jacke 10 Feb '20

10 Feb '20

Hi, I would like to disable offering starttls to clients for certain dovecot services. Background is that I want to do let a load balancer do the TLS stuff right on connect time and let dovecot only do plain imap without offering starttls (because the clients do imaps actually). Getting rid of the starttls feature offering works only if I set ssl = no globally only. Setting it in the service imap-login section seems to be impossible. If I set it globally to no though, I cannot use it in other services where it is needed like in the manage-sieve, where clients unfortunately only support starttls and no tls on connect. Is there any way to configure dovecot to offer starttls for some services and for some not or is this just not supported currently? Thanks Björn

2 4

Email Server Backup Strategy
by Esteban L 10 Feb '20

10 Feb '20

Hello, Was thinking it would be wise to backup my server, in case anything "bad" ever happened, so that I could quickly get up to speed. 1. clone the whole drive -- which might be the best to ensure I keep the whole system working. 2. But, what about, if I just wanted to backup my Email server components? Postfix - which I think is just config files, and Dovecot - I think there is a doveadm backup for doing such things. What do you guys do, recommend for backups?? Thanks -- https://www.little-beak.com "Doing what we can."

7 9

postmaster_address parameter scope
by mabi 10 Feb '20

10 Feb '20

Hello, I was wondering when I define the following dovecot parameter: postmaster_address = postmaster(a)mydomain.com in my local.conf config file, does this parameter apply globally? I mean because it is not inside any {} curly braces does it also appliy to: protocol lmtp { ... } or do I need o explicitly define again my postmaster_address parameter inside protocol lmtp{} like this? protocol lmtp { postmaster_address = postmaster(a)mydomain.com } My very same question applies also for protocol lda {}... Regards, Mabi

1 0

Reload Dovecot with thousands of domains.
by Victor 10 Feb '20

10 Feb '20

Hello!, I have a dovecot server configured with about 3k different domains. It worked without problems until SSL certificates has been installed. After increase available RAM and stabilizing the service my current problem is in renewals. Dovecot reload process consumes a lot of memory for every one certificate renewal. The server has enough memory to support reload in most cases, but if server has certain load, reload process throws down the service. I’m using lets encrypt certificates and this process is automated. Is there any way to reload just one domain/session?

1 0

How to configure mail-filter plugin
by 刘莹莹 10 Feb '20

10 Feb '20

I config mail-filter plugin like https://wiki2.dovecot.org/Plugins/MailFilter describe， but error occurred mail-filter plugin config in dovecot.conf: mail_plugins = mail_filter plugin { mail_filter = mail-filter %u # %u = username given to the script as first mail_filter_out = mail-filter-out %u } service mail-filter { executable = script /usr/local/bin/mail-filter.sh user = vmail group = vmail unix_listener mail-filter { mode = 0666 user = vmail group = vmail } } service mail-filter-out { executable = script /usr/local/bin/mail-filter-out.sh user = vmail group = vmail unix_listener mail-filter-out { mode = 0666 user = vmail group = vmail } } vim /usr/local/bin/mail-filter.sh touch /tmp/testfile cat > /tmp/tempfile cat /tmp/tempfile vim /usr/local/bin/mail-filter-out.sh cat > /tmp/tempfile cat /tmp/tempfile then "dovecot-lda -f q1(a)a.com -d q1(a)a.com < test.eml" Error log: Feb 10 10:00:21 lda(q1(a)a.com)<18794><9ZN8EzW5QF5qSQAA0J78UA>: Debug: Namespace : Using permissions from /home/a.com/q1: mode=0700 gid=default Feb 10 10:00:21 lda(q1(a)a.com)<18794><9ZN8EzW5QF5qSQAA0J78UA>: Panic: file ostream.c: line 201 (o_stream_flush): assertion failed: (stream->stream_errno != 0) Feb 10 10:00:21 lda(q1(a)a.com)<18794><9ZN8EzW5QF5qSQAA0J78UA>: Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7f049f4ef582] -> /usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f049f4ef68e] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe4b6e) [0x7f049f4f9b6e] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe4bb1) [0x7f049f4f9bb1] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f049f4565e8] -> /usr/lib64/dovecot/libdovecot.so.0(+0x10bc47) [0x7f049f520c47] -> /usr/lib64/dovecot/libdovecot-storage.so.0(dbox_save_end+0x35) [0x7f049f8262f5] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mdbox_save_finish+0x39) [0x7f049f81af99] -> /usr/lib64/dovecot/libdovecot-lda.so.0(+0x3fbe) [0x7f049fb0efbe] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_save_finish+0x73) [0x7f049f801493] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_storage_copy+0xc9) [0x7f049f7f38e9] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mdbox_copy+0x46) [0x7f049f81b816] -> /usr/lib64/dovecot/libdovecot-lda.so.0(+0x3daa) [0x7f049fb0edaa] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x4e87c) [0x7f049f80187c] -> /usr/lib64/dovecot/libdovecot-lda.so.0(mail_deliver_save+0x1d7) [0x7f049fb103e7] -> /usr/lib64/dovecot/libdovecot-lda.so.0(mail_deliver+0x2fe) [0x7f049fb10bfe] -> /usr/libexec/dovecot/dovecot-lda(main+0x615) [0x55f636880045] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f049f073c05] -> /usr/libexec/dovecot/dovecot-lda(+0x3b7e) [0x55f636880b7e]

1 0

noreplicate for some users
by mail＠backprod.de 08 Feb '20

08 Feb '20

Hi, I have set up the sync and it is working but I only would like to sync some users. Currently this does not seem to work. Version 2.3.9.2 Relevant Settings: File users: mail@domain.de:{SHA}hash:::t: passdb { driver = passwd-file args = username_format=%u /etc/dovecot/users } userdb { driver = passwd-file args = username_format=%u /etc/dovecot/users default_fields = uid=2222 gid=2222 home=/var/vmail/%d/%n userdb_noreplicate=t } After restart of dovecot I allways get all users with sudo doveadm replicator status "*" usernamepriority fast sync full sync success sync failed abuse(a)domain.net none 00:01:58 03:52:23 - y admin(a)domein.net none 00:01:58 03:52:23 - y abuse(a)domein.de none 00:01:58 07:51:00 - y What value needs to be set to get replication / no replication and to remove the users from the list? I have tried 0 / 1 / True / False / t / f / T / F but I don't see a change in behavior. Best regards Tim

2 2

Re: mail_filter plugin: failed: EOF without input (Gedalya)
by 刘莹莹 08 Feb '20

08 Feb '20

I just modified mail-filter-out.sh like this: cat  mail-filter-out.sh   #!/bin/sh   USER=$1   cat > /tmp/tempfile   cat /tmp/tempfile cat  /tmp/tempfile This message is in MIME format. --nsmail-7bjyg3nr5o-7bmibqhut9 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: base64 PHA+Jm5ic3A7PC9wPjxwPiZuYnNwOzIxMjEyMTIxPC9wPjxwPiZuYnNwOzwv cD48cD4mbmJzcDs8L3A+PHA+Jm5ic3A7PC9wPjxwPiZuYnNwOzwvcD4tLS0t PGRpdiBpZD0iY3MyY19tYWlsX3NpZ2F0dXJlIj48L2Rpdj48cD48L3A+ --nsmail-7bjyg3nr5o-7bmibqhut9-- But the log appears:   Feb 08 19:14:18 lda(q1(a)a.com)<71012><m+U/KQqYPl5kFQEA0J78UA>: Panic: file ostream.c: line 201 (o_stream_flush): assertion failed: (stream->stream_errno != 0)   Feb 08 19:14:18 lda(q1(a)a.com)<71012><m+U/KQqYPl5kFQEA0J78UA>: Error: Raw backtrace: /opt/svn/nsmail-dovecot-2.3.9_4/src/lib- dovecot/.libs/libdovecot.so.0(backtrace_append+0x42) [0x7f60cc7cc5c2] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-dovecot/.libs/libdovecot.so.0(backtrace_get+0x1e) [0x7f60cc7cc6ce] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-dovecot/.libs/libdovecot.so.0(+0xe4bae) [0x7f60cc7d6bae] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-dovecot/.libs/libdovecot.so.0(+0xe4bf1) [0x7f60cc7d6bf1] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-dovecot/.libs/libdovecot.so.0(i_fatal+0) [0x7f60cc733628] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-dovecot/.libs/libdovecot.so.0(+0x10bc67) [0x7f60cc7fdc67] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(dbox_save_end+0x35) [0x7f60ccb032e5] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(mdbox_save_finish+0x39) [0x7f60ccaf7f99] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-lda/.libs/libdovecot-lda.so.0(+0x402e) [0x7f60ccdec02e] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(mailbox_save_finish+0x73) [0x7f60ccade4b3] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(mail_storage_copy+0xc9) [0x7f60ccad08f9] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(mdbox_copy+0x46) [0x7f60ccaf8816] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-lda/.libs/libdovecot-lda.so.0(+0x3e1a) [0x7f60ccdebe1a] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(+0x4e89c) [0x7f60ccade89c] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-lda/.libs/libdovecot-lda.so.0(mail_deliver_save+0x1d7) [0x7f60ccded457] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-lda/.libs/libdovecot-lda.so.0(mail_deliver+0x2fe) [0x7f60ccdedc6e] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lda/.libs/lt-dovecot-lda(main+0x644) [0x55e0340b3144] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f60cc350c05] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lda/.libs/lt-dovecot-lda(+0x3cb6) [0x55e0340b3cb6] ------------------ Original ------------------ From: "dovecot-request"<dovecot-request(a)dovecot.org>; Date: Sat, Feb 8, 2020 06:00 PM To: "dovecot"<dovecot(a)dovecot.org>; Subject: dovecot Digest, Vol 202, Issue 11 Send dovecot mailing list submissions to dovecot(a)dovecot.org To subscribe or unsubscribe via the World Wide Web, visit https://dovecot.org/mailman/listinfo/dovecot or, via email, send a message with subject or body 'help' to dovecot-request(a)dovecot.org You can reach the person managing the list at dovecot-owner(a)dovecot.org When replying, please edit your Subject line so it is more specific than "Re: Contents of dovecot digest..." Today's Topics:    1. Re: mail_filter plugin: failed: EOF without input (Gedalya) ---------------------------------------------------------------------- Message: 1 Date: Fri, 7 Feb 2020 23:48:28 +0800 From: Gedalya <gedalya(a)gedalya.net> To: dovecot(a)dovecot.org Cc: ??? <576709166(a)qq.com> Subject: Re: mail_filter plugin: failed: EOF without input Message-ID: <84fcd237-4290-2518-c4cf-486a049d9231(a)gedalya.net> Content-Type: text/plain; charset=gb18030 On 2/7/20 4:33 PM, ??? wrote: > > cat?mail-filter-out.sh > #!/bin/sh > cat > tempfile > cat ?mail-filter.sh > #!/bin/sh > > USER=$1 > cat > tempfile > > Some important Error logs? > Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Error: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input > Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Info: msgid=<77z2kkfmm1-7846bu3tx6(a)nsmail6.0>: save failed to INBOX: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input > Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Debug: auth-master: conn unix:/var/run/dovecot/auth-master (pid=10651,uid=0): Disconnected: Connection closed (fd=11) > Hi, Your scripts are reading all the available input and not producing any output. This way the email message is lost. You could add the line: cat tempfile or just replace "cat > tempfile" with "tee > tempfile" ------------------------------ Subject: Digest Footer _______________________________________________ dovecot mailing list dovecot(a)dovecot.org https://dovecot.org/mailman/listinfo/dovecot ------------------------------ End of dovecot Digest, Vol 202, Issue 11 ****************************************

1 0

mail_filter plugin: failed: EOF without input
by 刘莹莹 07 Feb '20

07 Feb '20

some import  configure: plugin {   mail_filter = mail-filter %u # %u = username given to the script as first   mail_filter_out = mail-filter-out %u } service mail-filter {  executable = script /usr/local/bin/mail-filter.sh  user = dovecot  unix_listener mail-filter {    mode = 0600    user = vmail  } } service mail-filter-out {  executable = script /usr/local/bin/mail-filter-out.sh  user = dovecot  unix_listener mail-filter-out {    mode = 0600    user = vmail  } } protocol lda {     mail_plugins = quota sieve expire autocreate mail_filter     auth_socket_path = /var/run/dovecot/auth-master     rejection_subject = Rejected: %s     lda_mailbox_autocreate = yes     lda_mailbox_autosubscribe = yes     sendmail_path = /usr/sbin/sendmail } cat mail-filter-out.sh #!/bin/sh cat > tempfile cat  mail-filter.sh #!/bin/sh USER=$1 cat > tempfile Some important Error logs： Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Error: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Info: msgid=<77z2kkfmm1-7846bu3tx6(a)nsmail6.0>: save failed to INBOX: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Debug: auth-master: conn unix:/var/run/dovecot/auth-master (pid=10651,uid=0): Disconnected: Connection closed (fd=11)

2 1

mail_filter plugin: failed: EOF without input
by 刘莹莹 07 Feb '20

07 Feb '20

some import  configure: plugin {   mail_filter = mail-filter %u # %u = username given to the script as first   mail_filter_out = mail-filter-out %u } service mail-filter {  executable = script /usr/local/bin/mail-filter.sh  user = dovecot  unix_listener mail-filter {    mode = 0600    user = vmail  } } service mail-filter-out {  executable = script /usr/local/bin/mail-filter-out.sh  user = dovecot  unix_listener mail-filter-out {    mode = 0600    user = vmail  } } protocol lda {     mail_plugins = quota sieve expire autocreate mail_filter     auth_socket_path = /var/run/dovecot/auth-master     rejection_subject = Rejected: %s     lda_mailbox_autocreate = yes     lda_mailbox_autosubscribe = yes     sendmail_path = /usr/sbin/sendmail } cat mail-filter-out.sh #!/bin/sh cat > tempfile cat  mail-filter.sh #!/bin/sh USER=$1 cat > tempfile Some important Error logs： Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Error: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Info: msgid=<77z2kkfmm1-7846bu3tx6(a)nsmail6.0>: save failed to INBOX: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Debug: auth-master: conn unix:/var/run/dovecot/auth-master (pid=10651,uid=0): Disconnected: Connection closed (fd=11)

1 0

re: Dovecot - Upgrade Solr 7.7.2 to 8.4.1
by Francis Augusto Medeiros-Logeay 05 Feb '20

05 Feb '20

On 1/23/20 7:03 AM, Domenico Pastore wrote: >> So, with Dovecot is it possible to use Apache Solr 8.4? >> High RAM usage is the only problem? > I'm using 8.4.0 and it works flawlessly. I want to install fts-solr, but must tutorials are mentioning solr 7.7.0. Any heads-up on what one must pay attention to when installing 8.4.0? Do I need to update the version on the schemas, for example? Best, Francis

2 1

auth-client via SSL?
by Heiko Schlittermann 05 Feb '20

05 Feb '20

Hello, does dovecot support tls-on-connect for AF INET based auth-client sockets? Rationale behind my question: Exim can use the Dovecot auth-client socket to delegate the SMTP-AUTH authentication to Dovecot. Currently Exim supports the AF UNIX only for this socket. Jeremy makes progress in extending this to use AF INET sockets too. While it works with clear text communication already, during testing I was to setup the auch-client socket as an TLS server (tls-on-connect). It doesn't seem to work as I'd expect. The socket still offers clear-text only. Here my configuration snippets regarding this socket ssl = yes ssl_cert = </etc/dovecot/private/server.pem ssl_key = </etc/dovecot/private/server.pem service auth { … unix_listener auth-client { group = _exim mode = 0660 } inet_listener auth-client { name = exim port = 4711 ssl = yes } } SSL connections to :993 work as expected. Best regards from Dresden/Germany Viele Grüße aus Dresden Heiko Schlittermann -- SCHLITTERMANN.de ---------------------------- internet & unix support - Heiko Schlittermann, Dipl.-Ing. (TU) - {fon,fax}: +49.351.802998{1,3} - gnupg encrypted messages are welcome --------------- key ID: F69376CE - ! key id 7CBF764A and 972EAC9F are revoked since 2015-01 ------------ -

2 3

Submission service, XCLIENT and HELO
by Riccardo Alfieri 04 Feb '20

04 Feb '20

Hello, I'm using version 2.3.4.1 and I have a fairly simple setup based on a submission server where I run dovecot and a relay server with postfix. The relevant part of dovecot's config is as follows (sanitized): hostname = submission.domain.local submission_client_workarounds = whitespace-before-path submission_relay_host = 192.168.1.1 <- postfix submission_relay_port = 25 submission_relay_trusted = yes Postfix is configured as follows: smtpd_authorized_xclient_hosts = 192.168.1.2 <- submission server Everything apparently works as expected, meaning that I can correctly authenticate on the submission server and the email is relayed to postfix, where I can see the original MUA's IP correctly logged. There is, however, a little problem with the client HELO string that is not being forwarded to postfix. Instead of having the MUA HELO, I see the submission server HELO, as shown in the following tcpdump taken on the postfix server: 220 postfix.domain.local ESMTP Postfix (Ubuntu) EHLO submission.domain.local 250-postfix.domain.local 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH DIGEST-MD5 CRAM-MD5 NTLM PLAIN LOGIN 250-AUTH=DIGEST-MD5 CRAM-MD5 NTLM PLAIN LOGIN 250-XCLIENT NAME ADDR PROTO HELO REVERSE_NAME PORT LOGIN DESTADDR DESTPORT 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-DSN 250 SMTPUTF8 XCLIENT ADDR=192.168.1.3 PORT=57116 LOGIN=riccardo-at-domain.local 220 postfix.domain.local ESMTP Postfix (Ubuntu) EHLO submission.domain.local 250-postfix.domain.local 250-PIPELINING ... As you can see the first EHLO is correctly done with the submission server's hostname, but the subsequent one after XCLIENT is -still- the same hostname, while I was expecting that to be the one forwarded from the MUA, or possibly a "HELO=somethingelse" in the XCLIENT line. I've looked almost everywhere and I couldn't find a way to make dovecot use the MUA's HELO string. The question I'm asking is if there is a way to have the MUA's HELO forwarded to the relay server in some way, or if this is a bug or an expected behaviour. Thanks for any help you could give -- Best regards, Riccardo Alfieri Spamhaus Technology https://www.spamhaustech.com/

1 0

Vacation use different SMTP server
by azurit＠pobox.sk 03 Feb '20

03 Feb '20

Hi, in our setup, we have two SMTP servers: - one for receiving messages (this one is using Dovecot's LMTP for delivery) - one for sending messages (this one is used by our users as outgoing SMTP server) Only the first one has list of local domains, local e-mail accoutns etc. so the second one will ALWAYS use MX records for delivery - with this setup, we can allow to our users to add any domain to their accounts (for example, if someone will add gmail.com and create e-mail accounts on it, it's complete safe because we will never deliver mail for gmail.com locally). The only problem seems to be vacation messages (maybe other messages send by sieve), as Dovecot is using the first SMTP server for sending. My questions: Can i set different SMTP server for sieve messages? How exactly is Dovecot/Sieve choosing which SMTP server will be used? Thanks. azur

3 6

mail_filter and mail_filter_out broken somewhere between 2.2.27 and 2.3.4, problem still exists in git
by Michael Fincham 03 Feb '20

03 Feb '20

Hi Dovecot folks, I recently reported this bug in Debian (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=939442) after a stretch -> buster upgrade, however since I can reproduce it using the latest 2.4 from git I thought perhaps I ought to take it straight upstream. Here's the text I provided Debian about the issue, and below that I've included a syslog snip showing the same issue in a fresh build of git master as well. mail_filter_out seems to fully panic (backtrace below), whereas mail_filter is just behaving oddly. Thanks :) ***************************** Package: dovecot-core Version: 2.3.4.1-5+deb10u1 Severity: important Hi Dovecot maintainers, After upgrading from the latest stretch version of dovecot-core (2.2.27-3+deb9u5) to buster (2.3.4.1-5+deb10u1) the "mail filter" interface seems to have broken. This problem is also present in the sid version (2.3.7.2-1). Mail filter is used to run the content of messages being stored or retrieved through an arbitrary process. The interface used for the external process is described here: https://wiki.dovecot.org/Plugins/MailFilter It is expected that the process will be called with the arguments specified in the configuration then supplied a message body on stdin, however since upgrading it seems that the arguments are not being correctly passed, instead being all jammed in to $1 and separated by tabs, rather than expanded in to argv. Even stranger the first few lines of the body of the message appear in argv rather than in stdin... These reproduction steps were carried out on a fresh install of Debian Buster with the "dovecot-core" package installed initially from stretch then upgraded to the buster version, however this behaviour has also been observed on stretch systems after upgrading to buster. To reproduce, drop this minimalised config in to /etc/dovecot/conf.d/repro.conf: # Minimal maildir setup for LDA first_valid_uid = 0 mail_location = maildir:~/Maildir userdb { driver = static args = allow_all_users=yes uid=mail gid=mail home=/tmp/%u } # Mail filter configuration mail_plugins = $mail_plugins mail_filter plugin { mail_filter = mail-filter read %u mail_filter_out = mail-filter write %u } service mail-filter { executable = script /usr/local/bin/mail-filter.sh user = dovecot unix_listener mail-filter { mode = 0666 } } And create the example script in /usr/local/bin/mail-filter.sh with executable permissions: #!/bin/bash echo "arguments were: $@" 1>&2 tempfile=$(mktemp) cat > "${tempfile}" cat "${tempfile}" rm "${tempfile}" This script simply logs the arguments it recieves, writes stdin to a file then retrieves it again from the file. Here's a sample session of me using dovecot-lda to pass a message through this script, then retrieve it again with doveadm: root@scratch-b6fd8bdd:~# /usr/lib/dovecot/dovecot-lda -d fincham@scratch-b6fd8bdd -f 'Test <scratch-b6fd8bdd>' < /root/test.eml root@scratch-b6fd8bdd:~# doveadm fetch -u 'fincham@scratch-b6fd8bdd' hdr subject Test hdr: To: Test <fincham@scratch-b6fd8bdd> From: Test <fincham@scratch-b6fd8bdd> Subject: This is the test e-mail root@scratch-b6fd8bdd:~# tail /var/log/syslog | grep mail-filter Sep 5 00:07:48 scratch-b6fd8bdd dovecot: mail-filter: Error: arguments were: write fincham@scratch-b6fd8bdd Sep 5 00:07:50 scratch-b6fd8bdd dovecot: mail-filter: Error: arguments were: read fincham@scratch-b6fd8bdd However after upgrading dovecot to the buster version this process no longer works, and the logged argv of the example script is very strange: root@scratch-b6fd8bdd:~# apt dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following NEW packages will be installed: liblua5.3-0 libsodium23 ssl-cert The following packages will be upgraded: dovecot-core [...] root@scratch-b6fd8bdd:~# /usr/lib/dovecot/dovecot-lda -d fincham@scratch-b6fd8bdd -f scratch-b6fd8bdd < /root/test.eml Aborted root@scratch-b6fd8bdd:~# doveadm fetch -u 'fincham@scratch-b6fd8bdd' hdr subject Test hdr: Hello! doveadm(fincham@scratch-b6fd8bdd): Error: Mailbox INBOX: UID=1: read() failed: Cached message size larger than expected (115 > 7, box=INBOX, UID=1) (read reason=mail stream) doveadm(fincham@scratch-b6fd8bdd): Error: Corrupted record in index cache file /tmp/fincham(a)scratch-b6fd8bdd/Maildir/dovecot.index.cache: UID 1: Broken physical size in mailbox INBOX: read() failed: Cached message size larger than expected (115 > 7, box=INBOX, UID=1) doveadm(fincham@scratch-b6fd8bdd): Error: read() failed: Cached message size larger than expected (115 > 7, box=INBOX, UID=1) doveadm(fincham@scratch-b6fd8bdd): Error: fetch(hdr) failed for box=INBOX uid=1: read() failed: Cached message size larger than expected (115 > 7, box=INBOX, UID=1) root@scratch-b6fd8bdd:~# tail /var/log/syslog | grep mail-filter Sep 5 00:07:48 scratch-b6fd8bdd dovecot: mail-filter: Error: arguments were: write fincham@scratch-b6fd8bdd Sep 5 00:07:50 scratch-b6fd8bdd dovecot: mail-filter: Error: arguments were: read fincham@scratch-b6fd8bdd Sep 5 00:12:11 scratch-b6fd8bdd dovecot: mail-filter: Error: arguments were: write#011fincham@scratch-b6fd8bdd#011 To: Test <fincham@scratch-b6fd8bdd> From: Test <fincham@scratch-b6fd8bdd> Subject: This is the test e-mail Sep 5 00:12:14 scratch-b6fd8bdd dovecot: mail-filter: Error: arguments were: read#011fincham@scratch-b6fd8bdd#011 To: Test <fincham@scratch-b6fd8bdd> From: Test <fincham@scratch-b6fd8bdd> Subject: This is the test e-mail -- Package-specific info: dovecot configuration --------------------- # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-5-cloud-amd64 x86_64 Debian 10.0 # Hostname: scratch-b6fd8bdd first_valid_uid = 0 mail_location = maildir:~/Maildir mail_plugins = " mail_filter" mail_privileged_group = mail namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { mail_filter = mail-filter read %u mail_filter_out = mail-filter write %u } service mail-filter { executable = script /usr/local/bin/mail-filter.sh unix_listener mail-filter { mode = 0666 } user = dovecot } ssl = no userdb { driver = passwd } userdb { args = allow_all_users=yes uid=mail gid=mail home=/tmp/%u driver = static } -- System Information: Debian Release: 10.0 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-5-cloud-amd64 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages dovecot-core depends on: ii adduser 3.118 ii libapparmor1 2.13.2-10 ii libbz2-1.0 1.0.6-9.1 ii libc6 2.28-10 ii libexttextcat-2.0-0 3.4.5-1 ii libicu63 63.1-6 ii liblua5.3-0 5.3.3-1.1 ii liblz4-1 1.8.3-1 ii liblzma5 5.2.4-1 ii libpam-runtime 1.3.1-5 ii libpam0g 1.3.1-5 ii libsodium23 1.0.17-1 ii libssl1.1 1.1.1c-1 ii libstemmer0d 0+svn585-1+b2 ii libwrap0 7.6.q-28 ii lsb-base 10.2019051400 ii openssl 1.1.1c-1 ii ssl-cert 1.0.39 ii ucf 3.0038+nmu1 ii zlib1g 1:1.2.11.dfsg-1 dovecot-core recommends no packages. Versions of packages dovecot-core suggests: pn dovecot-gssapi <none> pn dovecot-imapd <none> pn dovecot-ldap <none> pn dovecot-lmtpd <none> pn dovecot-lucene <none> pn dovecot-managesieved <none> pn dovecot-mysql <none> pn dovecot-pgsql <none> pn dovecot-pop3d <none> pn dovecot-sieve <none> pn dovecot-solr <none> pn dovecot-sqlite <none> pn dovecot-submissiond <none> ii ntp 1:4.2.8p12+dfsg-4 Versions of packages dovecot-core is related to: ii dovecot-core [dovecot-common] 1:2.3.4.1-5+deb10u1 pn dovecot-dev <none> pn dovecot-gssapi <none> pn dovecot-imapd <none> pn dovecot-ldap <none> pn dovecot-lmtpd <none> pn dovecot-managesieved <none> pn dovecot-mysql <none> pn dovecot-pgsql <none> pn dovecot-pop3d <none> pn dovecot-sieve <none> pn dovecot-sqlite <none> -- no debconf information ***************************** And here it is on 2.4 from git: Sep 5 02:18:10 scratch-b6fd8bdd dovecot: master: Dovecot v2.4.devel () starting up for imap, pop3, lmtp Sep 5 02:18:10 scratch-b6fd8bdd systemd[1]: Started LSB: Dovecot init script. Sep 5 02:18:12 scratch-b6fd8bdd dovecot: mail-filter: Error: arguments were: write#011fincham@scratch-b6fd8bdd#011 To: Test <fincham@scratch-b6fd8bdd> From: Test <fincham@scratch-b6fd8bdd> Subject: This is the test e-mail Sep 5 02:18:12 scratch-b6fd8bdd dovecot: lda(fincham@scratch-b6fd8bdd)<4213><94f8BWRwcF11EAAA/w3Ckw>: Panic: file ostream.c: line 201 (o_stream_flush): assertion failed: (stream->stream_errno != 0) Sep 5 02:18:12 scratch-b6fd8bdd dovecot: lda(fincham@scratch-b6fd8bdd)<4213><94f8BWRwcF11EAAA/w3Ckw>: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xef5fb) [0x7f85ed0715fb] -> /usr/lib/dovecot/libdovecot.so.0(+0xef661) [0x7f85ed071661] -> /usr/lib/dovecot/libdovecot.so.0(+0x4e808) [0x7f85ecfd0808] -> /usr/lib/dovecot/libdovecot.so.0(+0x52ec1) [0x7f85ecfd4ec1] -> /usr/lib/dovecot/libdovecot-storage.so.0(maildir_save_finish+0x96) [0x7f85ed1b24d6] -> /usr/lib/dovecot/libdovecot-lda.so.0(+0x4395) [0x7f85ed294395] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_save_finish+0x82) [0x7f85ed189e52] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_storage_copy+0xd9) [0x7f85ed17c409] -> /usr/lib/dovecot/libdovecot-storage.so.0(maildir_copy+0x52) [0x7f85ed1aea02] -> /usr/lib/dovecot/libdovecot-lda.so.0(+0x4221) [0x7f85ed294221] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x5c1bc) [0x7f85ed18a1bc] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver_save+0x1b0) [0x7f85ed295390] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver+0x2f6) [0x7f85ed295ad6] -> /usr/libexec/dovecot/dovecot-lda(main+0x81b) [0x560cba869f4b] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xeb) [0x7f85ecdde09b] -> /usr/libexec/dovecot/dovecot-lda(_start+0x2a) [0x560cba86a65a]

2 3

Sieve prevents tigger of quota-warning
by Tom Sommer 31 Jan '20

31 Jan '20

Hi All I have a few reports from Sieve users, that they are not receiving quota warnings. It appears that when a mailbox is reaching quota, and sieve is responsible for moving mail the mail due to a rule, the quota-warning directive is not triggered? It works fine if Sieve is not part of the flow, and lmtp is alone in handling mail saving. Does anyone have a fix or insights into this? 2.3.9.2 Thanks -- Tom

2 1

Split storage & solr
by Daniel Miller 30 Jan '20

30 Jan '20

Is it possible to setup the following: 1. Primary mailserver with SMTP solutions and Dovecot. 2. Primary server will store recent mails. 3. Secondary server for archival storage and Solr. So I'm not looking for a distributed cluster - simply a splitting of designated functions. Clients would only be connecting to the primary server. I know Dovecot supports an alternate storage location - that's what made me think this was possible. What I'm more uncertain of is Solr. My (probably flawed) thinking is to take advantage of a low-cost high-availability cloud server to provide primary email services. Dovecot, Postfix, and even ASSP don't have significant memory or processor requirements by themselves - especially for my smaller user base. However - storage in the cloud can be at a premium. Therefore I'm thinking of continuing to self-host the archives. And my own server has the raw power & memory to handle Solr easily. What's triggering this is our ISP's quality has been deteriorating - and the alternates don't appear much better. Initial visualization would have a VPN/SSH connection between the servers, and NFS mounting my storage to the cloud server for archives. If our connection drops - in theory "current" mail handling is unaffected. My concerns/questions: 1. If Dovecot is unable to reach the remote Solr - upon re-connection will Solr be told about the new messages to index? Or do I need to setup a periodic re-scan? 2. Is there a "better" method of accessing the archive storage area than NFS? Either a different network file system or is there a way to do it with Dovecot directly? 3. What am I not taking into consideration in this setup that you think will be a problem? --- Daniel

2 1

IMAP compatible Notes app for Android
by Rupert Gallagher 29 Jan '20

29 Jan '20

Hello! Please share your favourite open-source Notes app for Android, as I am struggling to find one compatible with IMAP. Thank you, and happy 2020!

2 2

imap panic: file array.c: line 10 (array_idx_modifiable_i)
by mabi 29 Jan '20

29 Jan '20

Hello, I just migrated a few dovecot IMAP mailbox (Maildir format) from a Dovecot 2.1.7 (Debian 7) mailbox server to a Dovecot 2.3.4 (Debian 10) mailbox server and one particular mailbox does not work properly and generates the following error log entries: Jan 21 09:39:21 Panic: imap(EMAIL_ADDRESS)<7741><UTsrWKKcasoAAAAAAAAAAAAAAAAAAAAB>: file array.c: line 10 (array_idx_modifiable_i): assertion failed: (idx * array->element_size < array->buffer->used) Jan 21 09:39:21 Error: imap(EMAIL_ADDRESS)<7741><UTsrWKKcasoAAAAAAAAAAAAAAAAAAAAB>: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xdb15b) [0x7fa18def215b] -> /usr/lib/dovecot/libdovecot.so.0(+0xdb1f1) [0x7fa18def21f1] -> /usr/lib/dovecot/libdovecot.so.0(+0x4a001) [0x7fa18de61001] -> /usr/lib/dovecot/libdovecot.so.0(+0x493bf) [0x7fa18de603bf] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xde920) [0x7fa18e084920] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_sync_commit+0x22f) [0x7fa18e096a3f] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x85b4b) [0x7fa18e02bb4b] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x8862a) [0x7fa18e02e62a] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x88937) [0x7fa18e02e937] -> /usr/lib/dovecot/libdovecot-storage.so.0(maildir_storage_sync_init+0xa3) [0x7fa18e02ece3] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x57) [0x7fa18e002497] -> dovecot/imap [EMAIL_ADDRESS ::1 UID STORE](imap_sync_init+0x91) [0x563d342e16e1] -> dovecot/imap [EMAIL_ADDRESS ::1 UID STORE](cmd_sync_delayed+0x236) [0x563d342e25f6] -> dovecot/imap [EMAIL_ADDRESS ::1 UID STORE](client_handle_input+0x268) [0x563d342d58f8] -> dovecot/imap [EMAIL_ADDRESS ::1 UID STORE](client_input+0x7e) [0x563d342d5d6e] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x6f) [0x7fa18df0860f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x136) [0x7fa18df09c06] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x4c) [0x7fa18df086ac] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40) [0x7fa18df08810] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fa18de88fd3] -> dovecot/imap [EMAIL_ADDRESS ::1 UID STORE](main+0x325) [0x563d342c7bf5] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xeb) [0x7fa18dc7309b] -> dovecot/imap [EMAIL_ADDRESS ::1 UID STORE](_start+0x2a) [0x563d342c7d8a] Jan 21 09:39:21 Fatal: imap(EMAIL_ADDRESS)<7741><UTsrWKKcasoAAAAAAAAAAAAAAAAAAAAB>: master: service(imap): child 7741 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps) Does anyone have any idea what could be going wrong here? Maybe I need to run some kind of conversion or re-generate some indexes? Best regards, Mabi

3 10

Emails in Public folders aren't showing up in Outlook
by Barry Ralphs 29 Jan '20

29 Jan '20

Hi, I've inherited our Devocot setup from someone else & don't know much about it. I can view our Public email folders fine in Thunderbird, but when I try it with Outlook 2013, I can see the folder structure fine, but when I click on a folder it doesn't show any emails. Here's a screen shot of Outlook: https://imgur.com/CHIDJOr And Thunderbird: https://imgur.com/WxmsUTM Here's the version info & config output: # 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-1062.1.1.el7.x86_64 x86_64 CentOS Linux release 7.7.1908 (Core) ext4 # Hostname: nikola auth_mechanisms = plain login auth_verbose = yes debug_log_path = syslog disable_plaintext_auth = no info_log_path = syslog mail_location = maildir:/home/%n/Maildir mbox_write_locks = fcntl namespace TMpublic { location = maildir:/iscsi/public/Maildir:INDEX=~/Maildir/public/index prefix = Public/ separator = / subscriptions = no type = public } namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Sent { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / type = private } passdb { driver = pam } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = # hidden, use -P to show it userdb { driver = passwd } Any suggestions on how to get the Public folders to show the emails in Outlook? Thanks for the help.

1 0

error: include: personal location for included script `foo is unavailable
by Rudolf Schmidt 28 Jan '20

28 Jan '20

Hi, I want to split my active script into smaller chunks but I have issues with the include directive. My doveconf -n is # 2.3.9.2 (cf2918cac): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.9 (db4e9a2f) # OS: Linux 5.1.15-arch1-1-ARCH x86_64 Arch Linux auth_mechanisms = plain login auth_verbose = yes mail_location = maildir:~/mail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext passdb { args = scheme=plain /etc/dovecot/plain.pwd driver = passwd-file } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = imap lmtp service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service stats { unix_listener stats-writer { mode = 0777 } } ssl = required ssl_cert = </etc/letsencrypt/live/domain.com/fullchain.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { args = uid=vmail gid=vmail home=/var/mail/virtual/%Ld/%Ln driver = static } protocol lmtp { mail_plugins = " sieve" postmaster_address = rs@domain } I have a script vendors.sieve that I put into ~/sieve (my mails I store in ~/mails) and it does not find the script. include :personal "vendors"; Any ideas? -- Best Regards, Mit freundlichen Grüßen, Rudolf Schmidt

1 1

dict passdb: redis nil values
by Eirik Rye 28 Jan '20

28 Jan '20

Hi, I am trying to implement a dict lookup for disabled accounts, where both the passdb lookup and the disabled lookup is done in the same passdb. I was hoping that this configuration would work: passdb { name = redis driver = dict args = /etc/dovecot/dovecot-redis.conf.ext } --- uri = redis:host=127.0.0.1 key disabled { key = users/%u/disabled/%s format = value default_value = } key user { key = users/%u format = json } passdb_objects = user passdb_fields { fail = %{dict:disabled} } Unfortunately, this will always set the fail passdb_field regardless of whether the disabled key returns its empty default_value. Removing the default_value setting will cause the passdb lookup to fail if key lookup fails, as mentioned in the documentation. Is there a way to have the dict driver handle redis nil values similarly to how the sql driver handles NULL values? A working alternative I found is to set an invalid password if the disabled key is set: passdb_fields { password = %{if;%{dict:disabled};eq;;%{dict:user.password};} } However, this feels hacky. It also makes the auth-worker to log the following error (despite it being functional): dovecot: auth-worker(16229): Error: redis(test,127.0.0.1,<Kd3zJDOdfs1/AAAB>): Multiple password values not supported Any other suggestions, or should I simply fall back to using a separate passdb with deny=yes? Best regards, Eirik

1 0

Dovecot authentication through proxy
by Daniel Niewerth 28 Jan '20

28 Jan '20

Hi everybody, I run two redundant Dovecot servers with a shared Maildir on a GlusterFS volume and a SQL authentication backend based on a mirrored MariaDB database. Because of the splitbrain situation I would like to add two Dovecot Director as proxies. Since a few days I am trying to get the setup running. In the meantime I have achieved that the clients can successfully authenticate on the proxy and that the client connections are forwarded to the backend servers. Unfortunately I still have the problem that no authentication attempts are made on the backend servers. Can someone explain me how to solve this problem? I have read that it is eventually possible to work with Master Users. But I guess that won't work for me, because I use the mailcrypt plugin and the client password is also the password for the encryption key. Best regards Daniel ### Proxy Log ### ############### Jan 23 19:48:21 vsrv-***-prx01 dovecot: auth-worker(20760): Debug: sql(***(a)***.**,192.168.1.100,<sNTHFdOcbeDAqAFk>): Finished passdb lookup Jan 23 19:48:21 vsrv-***-prx01 dovecot: auth-worker(20760): Debug: conn unix:auth-worker (pid=20753,uid=112): auth-worker<1>: Finished Jan 23 19:48:21 vsrv-***-prx01 dovecot: auth: Debug: sql(***(a)***.**,192.168.1.100,<sNTHFdOcbeDAqAFk>): username changed ***(a)***.** -> *** Jan 23 19:48:21 vsrv-***-prx01 dovecot: auth: Debug: sql(***,192.168.1.100,<sNTHFdOcbeDAqAFk>): username changed *** -> ***(a)***.** Jan 23 19:48:21 vsrv-***-prx01 dovecot: auth: Debug: sql(***(a)***.**,192.168.1.100,<sNTHFdOcbeDAqAFk>): Finished passdb lookup Jan 23 19:48:21 vsrv-***-prx01 dovecot: auth: Debug: auth(***(a)***.**,192.168.1.100,<sNTHFdOcbeDAqAFk>): Auth request finished Jan 23 19:48:21 vsrv-***-prx01 dovecot: auth: Debug: client passdb out: OK#0111#011user=***@***.**#011proxy#011ssl=any-cert#011starttls=any-cert#011lip=192.168.20.49#011lport=993#011pass=<hidden> Jan 23 19:48:21 vsrv-***-prx01 dovecot: imap-login: Debug: Ignoring unknown passdb extra field: lip Jan 23 19:48:21 vsrv-***-prx01 dovecot: imap-login: Debug: Ignoring unknown passdb extra field: lport ### Backend Log ### ################### Jan 23 18:48:51 vsrv-***-mta01 dovecot: imap-login: Disconnected (no auth attempts in 30 secs): user=<>, rip=192.168.20.49, lip=192.168.20.28, TLS handshaking: Connection closed, session=<r9yRF9OcZODAqBQx> Jan 23 18:48:51 vsrv-***-mta01 dovecot: imap-login: Disconnected (no auth attempts in 30 secs): user=<>, rip=192.168.20.49, lip=192.168.20.28, TLS handshaking: Connection closed, session=<4C+SF9OcauDAqBQx> Jan 23 18:48:51 vsrv-***-mta01 dovecot: imap-login: Disconnected (no auth attempts in 30 secs): user=<>, rip=192.168.20.49, lip=192.168.20.28, TLS handshaking: Connection closed, session=<KDGSF9OcZuDAqBQx> Jan 23 18:48:51 vsrv-***-mta01 dovecot: imap-login: Disconnected (no auth attempts in 30 secs): user=<>, rip=192.168.20.49, lip=192.168.20.28, TLS handshaking: Connection closed, session=<lwKTF9OcbuDAqBQx> ### Proxy Config ### #################### # 2.3.9.2 (cf2918cac): /etc/dovecot/dovecot.conf # OS: Linux 4.15.0-74-generic x86_64 Ubuntu 18.04.3 LTS # Hostname: vsrv-***-prx01 auth_debug = yes director_mail_servers = 192.168.20.28 192.168.20.29 director_servers = 192.168.20.49:9090 192.168.20.58:9090 disable_plaintext_auth = no mail_location = mbox:~/mail:INBOX=/var/mail/%u namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } passdb { driver = pam } protocols = " imap" service director { inet_listener { port = 9090 } unix_listener login/director { mode = 0666 } } service imap-login { executable = imap-login director } service pop3-login { executable = pop3-login director } ssl = required ssl_cert = </etc/dovecot/private/***-**-fullchain.pem ssl_cipher_list = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA256:EECDH:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!IDEA:!ECDSA:kE$ ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol lmtp { auth_socket_path = director-userdb } ### Backend Config ### ###################### # 2.3.9.2 (cf2918cac): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.9 (db4e9a2f) # OS: Linux 4.15.0-72-generic x86_64 Ubuntu 18.04.3 LTS # Hostname: vsrv-**-mta01.**.**.***.** auth_debug = yes auth_mechanisms = plain login mail_attribute_dict = file:%h/Maildir/dovecot-attributes mail_fsync = always mail_gid = vmail mail_home = /var/vmail/mailboxes/%d/%n mail_location = maildir:~/mail:LAYOUT=fs mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = " notify mail_crypt" mail_privileged_group = vmail mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext imapsieve vnd.dovecot.imapsieve mmap_disable = yes namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { imapsieve_mailbox1_before = file:/var/vmail/sieve/global/learn-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/var/vmail/sieve/global/learn-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * mail_crypt_curve = brainpoolP512r1 mail_crypt_require_encrypted_user_key = # hidden, use -P to show it mail_crypt_save_version = 2 quota = maildir:User quota quota_exceeded_message = Benutzer %u hat das Speichervolumen überschritten. / User %u has exhausted allowed storage space. sieve = file:/var/vmail/sieve/%d/%n/scripts;active=/var/vmail/sieve/%d/%n/active-script.sieve sieve_before = /var/vmail/sieve/global/spam-global.sieve sieve_global_extensions = +vnd.dovecot.pipe sieve_pipe_bin_dir = /usr/bin sieve_plugins = sieve_imapsieve sieve_extprograms } protocols = imap lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0660 user = vmail } } service imap-login { inet_listener imap { port = 143 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } user = vmail } service managesieve-login { inet_listener sieve { port = 4190 } } ssl = required ssl_cert = </etc/letsencrypt/live/******/fullchain.pem ssl_cipher_list = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA256:EECDH:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!IDEA:!ECDSA:kEDH:CAMELLIA128-SHA:AES128-SHA ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol imap { imap_idle_notify_interval = 29 mins mail_max_userip_connections = 20 mail_plugins = " notify mail_crypt quota imap_quota imap_sieve" } protocol lmtp { mail_plugins = " notify mail_crypt sieve" postmaster_address = postmaster(a)***.** } -- This email was Malware checked by vsrv-dus6-fwl01

2 2

Number of imap-login processes always keeps growing, never goes down
by Jasper Siepkes 26 Jan '20

26 Jan '20

Hi all! I've bumped into an issue which Dovecot which has me a bit stumped; All of a sudden (ie. no obvious changes made to the config as far as I know) Dovecot seems to never stop 'imap-login' processes. This continues to the point where it will hit the 'process_limit'. For a 50-ish user install the limit was set to 100 but I increased it to 512. The only thing this changes it that Dovecot takes a little longer to hit the limit. I started having this problem with Dovecot version 2.3.2.1. After which I updated to the latest version of Dovecot (2.3.9.2) to see if that would fix my problem. However I'm still experiencing the same issue. For a bit of context; We use Dovecot with Open-Xchange where users login via OIDC, get a token and then use that token with Dovecot with the 'oauthbearer' auth method. However users can also login via a username / password combo stored in LDAP for clients that don't support 'oauthbearer' (ie. about all the mail clients ;-). We run Dovecot on SmartOS (ie. Illumos, a Solaris derivative). Oddly enough 'doveadm' is under the impression there are only 3 users loggedin (when there are 512 imap-login processes). I think 'doveadm who' doesn't show users who are authenticated via an token (oauthbearer) because I only see 3 users and I don't see my own user which is logged in via Open-Xchange by using oauthbearer as auth method. I've anonimized the output but you get the idea: ----8<-------------------- # doveadm who username # proto (pids) (ips) foo1(a)foo.nl 2 imap (78393 78391) (52.XXX.XXX.XXX) foo2(a)foo.nl 2 imap (72548 72547) (52.XXX.XXX.XXX) foo3(a)foo.nl 2 imap (480893 481231) (54.XXX.XXX.XXX 54.XXX.XXX.XXX) ----8<-------------------- I don't know if the above issue is related to my problem but the oauthbearer sessions not showing up seems like a bug? Meanwhile there are 512 Dovecot imap-login processes: ----8<-------------------- # ptree | grep imap-login | wc -l 513 ----8<-------------------- I realise that the 'imap-login' process also works as a IMAP proxy and that it stays alive during the entire session of the client since it handles the TLS part of the connection. However there are nowhere near 512 connections active. As far as I know IMAP doesn't support multiplexing (ie. multiple IMAP sessions in a single TCP connection) so with 512 imap-login proccess I would expect to see a lot more connections then I'm seeing: ----8<-------------------- # netstat -a TCP: IPv4 Local Address Remote Address Swind Send-Q Rwind Recv-Q State -------------------- -------------------- ------ ------ ------ ------ ----------- *.ssh *.* 0 0 1048576 0 LISTEN dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 52.XXX.XXX.XXX.53136 178176 0 1049580 0 ESTABLISHED dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 52.XXX.XXX.XXX.53188 126848 0 1049580 0 ESTABLISHED dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 83.XXX.XXX.XXX.64845 132352 0 1048960 0 ESTABLISHED dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 10.100.2.2.7937 16384 0 1049800 0 CLOSE_WAIT dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 10.100.2.3.4983 16384 0 1049800 0 CLOSE_WAIT dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 10.100.2.2.34369 16384 0 1049800 0 CLOSE_WAIT dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 10.100.2.3.15041 16384 0 1049800 0 CLOSE_WAIT dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 10.100.2.2.49044 16384 0 1049800 0 CLOSE_WAIT dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 10.100.2.3.6340 16384 0 1049800 0 CLOSE_WAIT dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 10.100.2.2.11331 16384 0 1049800 0 CLOSE_WAIT dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 52.XXX.XXX.XXX.49920 94976 0 1049580 0 ESTABLISHED dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.58569 10.100.3.84.ldap 1049792 0 1049800 0 ESTABLISHED dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.33749 10.100.3.84.ldap 1049792 0 1049800 0 ESTABLISHED dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps 52.XXX.XXX.XXX.49966 46464 0 1049580 0 ESTABLISHED *.4190 *.* 0 0 1048576 0 LISTEN *.24 *.* 0 0 1048576 0 LISTEN *.imap2 *.* 0 0 1048576 0 LISTEN *.imaps *.* 0 0 1048576 0 LISTEN dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps ec2-54-210-254-232.compute-1.amazonaws.com.32892 107904 0 1049800 0 ESTABLISHED dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.ssh 10.101.2.14.59256 64128 35 1049880 0 ESTABLISHED dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl.imaps ec2-54-167-34-137.compute-1.amazonaws.com.3890 549632 0 1049800 0 ESTABLISHED TCP: IPv6 Local Address Remote Address Swind Send-Q Rwind Recv-Q State If --------------------------------- --------------------------------- ------ ------ ------ ------ ----------- ----- *.ssh *.* 0 0 1048576 0 LISTEN Active UNIX domain sockets Address Type Vnode Conn Local Address Remote Address ----8<-------------------- This is the running Dovecot config: ----8<-------------------- # doveconf -n -c /etc/dovecot/dovecot.conf # 2.3.9.2 (cf2918cac): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.9 (db4e9a2f) # OS: SunOS 5.11 i86pc # Hostname: dovecot-1.inst.sp-prod.nl1.cns.supersecretcorp.nl auth_failure_delay = 3 secs auth_mechanisms = plain oauthbearer xoauth2 base_dir = /var/run/dovecot/ disable_plaintext_auth = no first_valid_uid = 1000 hostname = imap.supersecretcorp.nl instance_name = dovecot-1 listen = * lmtp_rcpt_check_quota = yes log_path = /dev/stderr mail_attachment_dir = /var/lib/dovecot/attachments mail_attachment_fs = sis-queue /var/lib/dovecot/attachments/queue:posix mail_attachment_hash = %{sha256} mail_attribute_dict = file:~/mdbox/dovecot-attributes mail_gid = vmail mail_home = /var/lib/dovecot/vmail/%d/%n mail_location = mdbox:~/mdbox mail_plugins = " quota notify" mail_server_admin = mailto:it@ask.supersecretcorp.nl mail_temp_dir = /var/lib/dovecot/tmp mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext metric imap_command_fetch_ok { event_name = imap_command_finished filter { name = FETCH tagged_reply_stat = OK } } metric imap_command_list { event_name = imap_command_finished filter { name = LIST tagged_reply_state = OK } } metric imap_command_search { event_name = imap_command_finished filter { name = SEARCH tagged_reply_stat = OK } } metric imap_command_select { event_name = imap_command_finished filter { name = SELECT tagged_reply_state = OK } } metric imap_select_no { event_name = imap_command_finished filter { name = SELECT tagged_reply_state = NO } } metric imap_select_no_notfound { event_name = imap_command_finished filter { name = SELECT tagged_reply = NO*Mailbox doesn't exist:* } } metric storage_http_gets { categories = storage event_name = http_request_finished filter { method = get } } namespace inbox { hidden = no inbox = yes list = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox "Sent objects" { special_use = \Sent } mailbox Spam { special_use = \Junk } mailbox Trash { special_use = \Trash } prefix = separator = / subscriptions = yes type = private } passdb { args = /etc/dovecot/dovecot-oauth2.conf.ext driver = oauth2 mechanisms = oauthbearer xoauth2 } passdb { args = /etc/dovecot/dovecot-ldap-passdb.conf.ext driver = ldap } plugin { push_notification_driver = ox:url=http://#hidden_use-P_to_show#@open-xchange.svc.sp-prod.nl1.cns.supersecretcorp.nl:8009/preliminary/http-notify/v1/notify user_from_metadata quota = count:User quota quota_rule2 = Trash:storage=+25M quota_vsizes = yes sieve = file:~/sieve;active=~/.dovecot.sieve sieve_max_actions = 32 sieve_max_redirects = 4 sieve_max_script_size = 1M sieve_quota_max_scripts = 500 sieve_quota_max_storage = 10M sieve_vacation_send_from_recipient = yes } postmaster_address = postmaster(a)supersecretcorp.nl protocols = imap lmtp sieve service auth-worker { user = $default_internal_user } service auth { unix_listener auth-userdb { group = vmail mode = 0770 user = dovecot } user = $default_internal_user } service imap-login { process_limit = 512 process_min_avail = 1 service_count = 1 } service imap { process_limit = 512 } service lmtp { inet_listener lmtp { address = * port = 24 } user = vmail } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 0 service_count = 1 } service managesieve { process_limit = 256 } service stats { unix_listener stats-reader { group = vmail mode = 0660 user = vmail } unix_listener stats-writer { group = vmail mode = 0660 user = vmail } } ssl_client_ca_dir = /opt/local/etc/openssl/certs ssl_dh = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 submission_host = postfix.svc.sp-prod.nl1.cns.supersecretcorp.nl:25 userdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap } protocol imap { mail_plugins = " quota notify imap_quota" ssl_cert = </etc/dovecot/pki/imap.supersecretcorp.nl.crt ssl_key = # hidden, use -P to show it } protocol submission { ssl_cert = </etc/dovecot/pki/smtp.supersecretcorp.nl.crt ssl_key = # hidden, use -P to show it } protocol lmtp { mail_plugins = quota sieve notify push_notification postmaster_address = postmaster(a)supersecretcorp.nl } remote 10.100.2.0/23 { protocol imap { imap_metadata = yes } } ----8<-------------------- Hoping anyone can offer any insights! Kind regards, Jasper

1 0

Lookup master userdb used with GSSAPI causes auth-worker to report "Error: BUG: PASSL had invalid passdb ID"
by Filip Matijević 25 Jan '20

25 Jan '20

Hello to everybody, I'm in the process of setting up test mail server (Ubuntu 19.10 amd64 running as VM under Hyper-V) and got stuck on configuring master user authentication. I use GSSAPI authentication in parallel with PLAIN/LOGIN (pam backend that authenticates against my Active Directory domain) and this works as intended. I then tried adding simple static master passdb that simply returns nopassword='y' and k5principals=... for test and it also works OK. Sadly, using any other backend (I've tried lua and sql) for master passdb instead of static in combination with GSSAPI client causes auth-worker to report "Error: BUG: PASSL had invalid passdb ID". I took a look at the code and my best guess is that in case of GSSAPI + sql/lua master passdb we end up with call to auth_worker_handle_passl with id that auth_worker_handle_passl considers invalid. Continuing with guesswork, I imagine that since GSSAPI doesn't really need passdb in config "virtual" passdb is generated "on the fly" in code. I even tried explicitly defining static passdb with mechanisms set to gssapi to try to force dovecot to use that one instead but it didn't make any difference. At the same time, below configuration works OK when client authenticates with plain/login. dovecot -n (some settings omitted for brevity): # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf auth_gssapi_hostname = $ALL auth_krb5_keytab = /etc/dovecot/dovecot.keytab auth_master_user_separator = * auth_mechanisms = plain login gssapi passdb { args = /etc/dovecot/dovecot-sql-master.conf driver = sql master = yes } passdb { driver = pam } userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } Any help is appreciated, even if it requires code changes - I can set up machine with everything needed for building/debugging the source code. Thanks, Filip

1 0

sieve size match with multiple of 4GB not matching (BUG?)
by Matthias Lay 24 Jan '20

24 Jan '20

Hi, I have noticed a strange behaviour when using size matches with GB in sieve. If I use filter that matches mails smaller then 4, or 8GB it does not match in any case. same filter matches with 3,5,6,7 GB example filter: require "vnd.dovecot.debug"; if allof (size :under 4G) { debug_log "MATCH"; } else { debug_log "NO MATCH"; } # sieve-filter -u johnd filter.sieve INBOX >> Filtering message: ID: <5167DFC8.8040207@XXXXXX> Date: Fri, 12 Apr 2013 12:19:52 +0200 Size: 1820898 bytes Subject: Fwd: Multi-media mail demonstration info: DEBUG: NO MATCH. ************************************************************************** same mail with this sieve rule: if allof (size :under 5G) { debug_log "MATCH"; } else { debug_log "NO MATCH"; } # sieve-filter -u johnd filter.sieve INBOX >> Filtering message: ID: <5167DFC8.8040207@XXXXXX> Date: Fri, 12 Apr 2013 12:19:52 +0200 Size: 1820898 bytes Subject: Fwd: Multi-media mail demonstration info: DEBUG: MATCH. same for M. 4096M => NO MATCH 4097M => MATCH Greetz Matze

1 0

Re: Namespace problem? duplicated folders...
by Daniel Miller 24 Jan '20

24 Jan '20

And I should have seen that from your first post but output from "doveconf" is definitive. -- Daniel On 1/23/2020 6:57 PM, Daniel Miller wrote: > Keeping in mind I'm 0% Dovecot certified and 100% certifiable... > > I'm guessing you have your namespace definition separate from your > special-use mailbox declarations. Possibly in 10-mail.conf and > 15-mailboxes.conf? Not that it matters. > > First sugggestion - that first namespace definition. Change it from: > > namespace { > > to > > namespace inbox { > > and see what happens. > > -- > Daniel > > > On 1/23/2020 4:40 PM, Gregory Sloop wrote: >> >> >> *DM> Interesting. >> >> DM> While I don't use mbox (dbox or maildir) I wouldn't think that would >> DM> matter. Your namespace layout looks nearly the same as my own. But to >> DM> verify what's going on - post the output of "doveconf namespace". >> >> DM> Possibly just reviewing that output may tell you enough - otherwise >> DM> share it (fully) here. >> >> DM> -- >> DM> Daniel >> >> *namespace { >> disabled = no >> hidden = no >> ignore_on_failure = no >> inbox = yes >> list = yes >> location = >> order = 0 >> prefix = INBOX/ >> separator = / >> subscriptions = yes >> type = private >> } >> namespace inbox { >> disabled = no >> hidden = no >> ignore_on_failure = no >> inbox = no >> list = yes >> location = >> mailbox Drafts { >> auto = no >> autoexpunge = 0 >> comment = >> driver = >> special_use = \Drafts >> } >> mailbox Junk { >> auto = no >> autoexpunge = 0 >> comment = >> driver = >> special_use = \Junk >> } >> mailbox Sent { >> auto = no >> autoexpunge = 0 >> comment = >> driver = >> special_use = \Sent >> } >> mailbox "Sent Messages" { >> auto = no >> autoexpunge = 0 >> comment = >> driver = >> special_use = \Sent >> } >> mailbox Trash { >> auto = no >> autoexpunge = 0 >> comment = >> driver = >> special_use = \Trash >> } >> order = 0 >> prefix = >> separator = >> subscriptions = yes >> type = private >> } >> > >

1 0

wrong Messages in virtual Folder
by Frank-Ulrich Sommer 24 Jan '20

24 Jan '20

Hello, I created a virtual Folder that should contain all Mails from several different Folders and their subfolders. Recently I added a new folder to the dovecot-virtual file and then found that most Mails from this folder were missing. I always restartet dovecot (is this necessary?) after any change. The system is running Debian Stretch and I am using the supplied dovecot 2.2.7 (see below for output of doveconf -n). To narrow this down I removed all other directories from the dovecot-virtual file and then found that the number of mails is correct, but most mails are the wrong ones from other directories. The dovecot-virtual file currently contains only the source directory and in the last line 4 spaces followed by the keyword "all" and a newline. Mails that where moved there after the directory was added to the virtual folder seemed to be displayed correct. If I move one Mail away from the source diectory a totally different Mail in the virtual Folder disappers. After moving the file back to the source folder it correctly appears in the virtual folder. What might be the cause and how can I fix it? Thanks, Frank Output of "doveconf -n": # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 4.9.0-11-amd64 x86_64 Debian 9.11 zfs auth_verbose = yes log_path = /var/log/dovecot.log mail_location = maildir:/home/bananamail/Maildir:INDEX=/var/dovecot_indexes/%u mail_plugins = " virtual fts fts_solr" mailbox_list_index = yes managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace { location = virtual:~/Maildir/virtual prefix = _virtual. separator = . type = private } namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = scheme=CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } plugin { fts = solr fts_autoindex = yes fts_enforced = yes fts_solr = break-imap-search url=http://localhost:8080/solr/ sieve = file:~/sieve;active=~/.dovecot.sieve } postmaster_address = postmaster@localhost protocols = imap service imap-login { inet_listener imaps { port = XXXX ssl = yes } } ssl = required ssl_cert = <XXXXXXXXX/fullchain.pem ssl_cipher_list = ALL:!LOW:!SSLv2:!SSLv3:!EXP:!aNULL ssl_dh_parameters_length = 2048 ssl_key = # hidden, use -P to show it ssl_protocols = !SSLv3 !TLSv1 userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } protocol imap { mail_max_userip_connections = 200 }

1 0

intermittant passdb error
by NeuralNET 23 Jan '20

23 Jan '20

I'm having great difficulty debugging this problem.. I'm having intermittant problems connecting to dovecot. This started a couple of days ago following an apt-get update on the server. I'm running Ubuntu 14.04, dovecot 2.2.9. Here's my dovecot -n --- # 2.2.9: /etc/dovecot/dovecot.conf # OS: Linux 3.19.0-59-generic x86_64 Ubuntu 14.04.4 LTS auth_mechanisms = plain login mail_location = maildir:~/Maildir namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { sieve_dir = ~/sieve } protocols = imap service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } user = $default_internal_user } ssl = required ssl_cert = </etc/dovecot/box.neuralnet.org.uk_crt.pem ssl_key = </etc/dovecot/box.neuralnet.org.uk_key.pem ssl_protocols = !SSLv2 !SSLv3 userdb { driver = passwd } --- Pretty standard stuff. In addition disable_plaintext_auth = yes is set in 10-auth.conf This showed up in the mail.err after the reboot; --- May 17 09:04:51 server dovecot: imap-login: Error: read(anvil) failed: EOF May 17 09:04:51 server dovecot: auth: Error: read(anvil-auth-penalty) failed: EOF May 17 09:04:51 server dovecot: auth: Error: net_connect_unix(anvil-auth-penalty) failed: Permission denied --- At that point The following commands were run on the server a few minutes apart with no changes made in the interim; --- username@box /etc/dovecot $ doveadm user username field valueuserdb lookup: user username doesn't exist username@box /etc/dovecot $ doveadm user username field value uid 1000 gid 1000 home /home/username mail maildir:~/Maildir system_groups_user username --- so, passdb wasn't accessible, but now it is ? Imap logins are showing in mail.log as failing, but thunderbird is currently connected; --- May 18 12:00:58 box dovecot: imap-login: Disconnected (auth failed, 3 attempts in 19 secs): user=<username>, method=PLAIN, rip=10.0.0.3, lip=10.0.0.99, TLS, session=<********> May 18 12:08:27 box dovecot: imap-login: Disconnected (auth failed, 3 attempts in 20 secs): user=<username>, method=PLAIN, rip=10.0.0.3, lip=10.0.0.99, TLS, session=<********> May 18 12:08:50 box dovecot: imap-login: Disconnected (auth failed, 3 attempts in 12 secs): user=<username>, method=PLAIN, rip=10.0.0.3, lip=10.0.0.99, TLS, session=<********> --- do I conclude that method=plain is failing, whereas method=login succeeds ? I tried setting auth_debug_password=yes and get the following; --- May 18 12:26:42 box dovecot: auth: Debug: client in: CONT#0111#011A********== (previous base64 data may contain sensitive data) May 18 12:26:42 box dovecot: auth-worker(12214): Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth May 18 12:26:42 box dovecot: auth-worker(12214): Debug: pam(expert,10.0.0.3): lookup service=dovecot May 18 12:26:42 box dovecot: auth-worker(12214): Debug: pam(expert,10.0.0.3): #1/1 style=1 msg=Password: May 18 12:26:42 box dovecot: auth-worker(12211): pam(username,10.0.0.3): pam_authenticate() failed: Authentication failure (password mismatch?) (given password: ******) May 18 12:26:44 box dovecot: auth: Debug: client passdb out: FAIL#0112#011user=username --- Any assistance debugging this further is greatly recieved! Thanks.

2 2

Bug: Regex doesn't match ungreedy
by Lorenz Steinert 23 Jan '20

23 Jan '20

Hello, first the mandatory dovecot specs: - dovecot 2.3.9.2-1 - Operating system: Archlinux - x84 cpu - ext4 filesystem My problem is that the sieve regex filter doesn't seem to match ungreedely so the regex: ^(Re: |)\\[(.*?)\\/(.*?)\\] evaluates the last capturing group of [matrix-org/synapse] [Don't merge!!] Backport fix for MAU limits to v1.8.0 (#6763) to synapse] [Don't merge!! wich should have been synapse Best Regards Lorenz Steinert

2 1

Is it possible to enable push notifications for iOS/macOS mail clients on a stock dovecot?
by Gerben Wierda 23 Jan '20

23 Jan '20

Now that Apple has abandoned mail server capabilities in macOS Server.app we have to move to an open source solution. I have done this using Macports and it works well (no thanks to Apple as it never published the in 2018 promised migration info for mail services). The MacPorts Apple Push Notification variant based on a patch written a few years ago for dovecot supports APNS but it requires you to export a certificate form your old High Sierra Server.app. With the patch and that certificate, dovecot tells an email client it supports XAPPLEPUSHSERVICE and that makes Apple mail clients think they are talking to macOS Server and they switch to push notifications for updates. Now, that certificate needs to be renewed yearly by Server.app and imported by hand etc. At some point this will stop working (apart from that you need to keep an old macOS Server around to renew) Is there another way to get this working with an open source dovecot, outside of using Apple’s push notification service? Some other standard? Some other service? Probably not, right? G

5 5

Using dsync for a single mailbox?
by Wim Lewis 23 Jan '20

23 Jan '20

Is it possble to use `doveadm sync` to migrate a single mailbox? I'm migrating accounts from another IMAP server,and most of the mailboxes are in mbox or maildir format, but a few are in MBX. As far as I can tell the only recommended way to "convert" an MBX mailbox is to sync it via imap. But dsync fails in inscrutable ways, and the documentation is kind of scant on how to control what it does. Even just an example command line showing how to copy remote mailbox FOO into dovecot mailbox BAR would be extremely helpful.

2 4

Dovecot - Upgrade Solr 7.7.2 to 8.4.1
by Domenico Pastore 23 Jan '20

23 Jan '20

Hello, I have Dovecot configured with Solr for the indexes. I have need your support for upgrade solr 7.7.2 to 8.4.1. Solr 7.7.2 has a security issue CVE-2019-12409. It's possible upgrade of Solr? Dovecot work correctly with Solr 8.x? The Solr documentation recommended after updating: "It is always strongly recommended that you fully reindex your documents after a major version upgrade." There are tips for Dovecot? Br, Domenico

4 4

Re: JMAP support in Dovecot
by Mike Gao 22 Jan '20

22 Jan '20

Hi, Any news for jmap Support in Dovecot? Thanks, Mike

1 0

socket dovecot-lmtp is not created anymore
by ratatouille 22 Jan '20

22 Jan '20

Hello! Since experiments on my testserver two days ago /var/spool/postfix/private/dovecot-lmtp is not created anymore. This the setting in /etc/dovecot/conf.d/10-master.conf service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } I searched nearly the whole system for lmtp but can't find the reason why. What can I do? Debug? Andreas

2 2

Cached message size smaller than expected
by Asai 21 Jan '20

21 Jan '20

Greetings, Can anyone help me to solve this problem? When doveadm sync is running nightly, we have a certain user's mailbox that will not properly sync and the logs give me this error (user private info redacted): Error: Mailbox USER/MAILBOX: UID=79: read(/vmail/domain.org/user/.MAILBOX/cur/1575914253.M611834P7822.triata4,S=… failed: Cached message size smaller than expected (41893 < 41897, box=USER/MAILBOX, UID=79) (read reason=mail stream) I have deleted the dovecot indexes in the synced backup of this mailbox, as well as in the actual user's mailbox itself and I'm still getting this error. What am I missing? Thank you for your help here. -Asai

2 2

Dovecot and archived compressed folder
by filbar＠centrum.cz 21 Jan '20

21 Jan '20

Hello, I have large of archive mails which I access occasionally. Is it possible to have in dovecot in user account archive folder which is compressed to save disk space? Thank's Filip Bartmann

2 2

Getting an extprogram script to work
by Eric Abrahamsen 21 Jan '20

21 Jan '20

Hi all, I'm trying to do the same thing everyone else is: having rspamd learn_ham or learn_spam depending on where I move a message. My current problem is that Dovecot seems to be reporting success, but nothing ever happens -- the script somehow fails to run. I'm currently using a dummy script that just writes a file to /tmp, until I can get this much working, at least. My bin_dir: --------------------- me@server:/usr/lib/dovecot/sieve# ls -l total 40 drwxr-xr-x 2 root root 4096 Jan 21 03:35 ./ drwxr-xr-x 4 root root 12288 Aug 29 06:28 ../ -rw-r--r-- 1 root root 112 Jan 21 02:17 report-ham.sieve -rw-r--r-- 1 root root 250 Jan 21 02:17 report-ham.svbin -rw-r--r-- 1 root root 112 Jun 3 2019 report-spam.sieve -rw-r--r-- 1 root root 258 Jun 3 2019 report-spam.svbin -rwxr-xr-x 1 root root 105 Jan 21 03:35 rspamd_ham.sh* -rwxr-xr-x 1 root root 43 Jun 3 2019 rspamd_spam.sh* --------------------- Then the report-ham.sieve script: --------------------- require ["vnd.dovecot.pipe", "copy", "imapsieve", "fileinto"]; pipe :copy "rspamd_ham.sh"; #fileinto "INBOX"; --------------------- And the dummy rspamd_ham.sh script: --------------------- #!/bin/bash #exec /usr/bin/rspamc learn_ham tim=`date +%M-%S` echo "${1}" > "/tmp/${tim}_results.txt" --------------------- I can confirm the above script works correctly when run from the command line, both as root and the vmail user. When run as part of the sieve process, no errors are reported, but no file is created under /tmp. From the logs: --------------------- Debug: sieve: Sieve imapsieve plugin for Pigeonhole version 0.4.21 (92477967) loaded Debug: sieve: Sieve Extprograms plugin for Pigeonhole version 0.4.21 (92477967) loaded ... Debug: learn/ham: Mailbox opened because: SELECT Debug: imapsieve: mailbox learn/ham: APPEND event Debug: imapsieve: Matched static mailbox rule [1] Debug: sieve: file storage: Using Sieve script path: /usr/lib/dovecot/sieve/report-ham.sieve Debug: sieve: file script: Opened script `report-ham' from `/usr/lib/dovecot/sieve/report-ham.sieve' Debug: sieve: Opening script 1 of 1 from `/usr/lib/dovecot/sieve/report-ham.sieve' Debug: sieve: Loading script /usr/lib/dovecot/sieve/report-ham.sieve Debug: sieve: Script binary /usr/lib/dovecot/sieve/report-ham.svbin successfully loaded Debug: sieve: binary save: not saving binary /usr/lib/dovecot/sieve/report-ham.svbin, because it is already stored Debug: sieve: Executing script from `/usr/lib/dovecot/sieve/report-ham.svbin' Debug: sieve: action pipe: running program: rspamd_ham.sh Debug: Mailbox learn/ham: Opened mail UID=249 because: mail stream Debug: waiting for program `/usr/lib/dovecot/sieve/rspamd_ham.sh' to finish after 0 msecs sieve: pipe action: piped message to program `rspamd_ham.sh' Debug: learn/ham: Mailbox opened because: lib-lda delivery sieve: left message in mailbox 'learn/ham' --------------------- Near as I can tell, the first time this runs after a dovecot restart, I get this error instead: Error: write(program stdin) failed: Broken pipe Error: sieve: pipe action: failed to program `rspamd_ham.sh': refer to server log for more information. But that only happens once, then it behaves as above. The "Opened mail UID=XXX" bit changes UID (increments monotonically?) every time. I think that ought to be everything but my dovecot -n. Thanks in advance for any help. # 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) # OS: Linux 4.15.0-1057-aws x86_64 Ubuntu 18.04.3 LTS ext4 auth_mechanisms = plain login auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@+ lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lmtp_save_to_detail_mailbox = yes mail_debug = yes mail_home = /var/mail/vmail/%d/%n mail_location = maildir:/var/mail/vmail/%d/%n/mail:LAYOUT=fs mail_plugins = " quota" mail_prefetch_count = 20 mail_privileged_group = mail mailbox_list_index = yes managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext imapsieve vnd.dovecot.imapsieve namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = scheme=ssha512 username_format=%u /etc/dovecot/passwd.db driver = passwd-file } plugin { imapsieve_mailbox1_before = file:/usr/lib/dovecot/sieve/report-ham.sieve imapsieve_mailbox1_causes = APPEND imapsieve_mailbox1_name = learn/ham quota_rule = *:storage=5G quota_rule2 = Trash:ignore quota_rule3 = Junk:ignore quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO recipient_delimiter = + sieve = file:~/sieve;active=~/.dovecot.sieve sieve_after = /var/mail/vmail/sieve-after sieve_before = /var/mail/vmail/sieve-before sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment +vnd.dovecot.debug sieve_pipe_bin_dir = /usr/lib/dovecot/sieve sieve_plugins = sieve_imapsieve sieve_extprograms } protocols = " imap lmtp sieve" quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/dovecot-auth { mode = 0666 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { mode = 0666 user = vmail } } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 1 } service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { port = 12340 } } ssl = required ssl_cert = </etc/letsencrypt/live/cert-deleted ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL:!ADH:!eNULL:RC4+RSA:+HIGH:+MEDIUM ssl_client_ca_dir = /etc/ssl/certs ssl_key = # hidden, use -P to show it userdb { args = username_format=%u /etc/dovecot/passwd.db default_fields = uid=vmail gid=vmail home=/var/mail/vmail/%d/%n driver = passwd-file } protocol lmtp { mail_plugins = " quota sieve" postmaster_address = postmaster(a)ericabrahamsen.net } protocol lda { deliver_log_format = msgid=%m: %$ } protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_plugins = " quota imap_quota imap_sieve" }

1 0

solr fts and removing accounts
by Wojciech Puchar 20 Jan '20

20 Jan '20

i use solr fts indexing. It worls very well but it have one database per system, not per user. Lets suppose i delete one or more e-mail users in system. How to remove them in solr database to reclaim space?

3 2

Authentication per Service
by Oliver Welter 18 Jan '20

18 Jan '20

Hi All, I use dovecot (v2.3.4) with a SQL backend for user authentication, passwords are stored in CRAMMD5 format. My SMTP server uses "doveadm auth" via auth-socket to perform sender authentification. To shut down SMTP access for hacked passwords I want to have a dedicated flag in the user database to allow/disallow SMTP for a user withouth disabling his account for IMAP. So, is there any option to use a separate passdb definition or additional parameters by either setting this in socket definition of "service auth" or using "-x auth_info"? TIA Oliver -- Protect your environment - close windows and adopt a penguin!

3 3

Sieve puts Reference:-Headers into Vacation-Reply
by Christian K 17 Jan '20

17 Jan '20

Hey, I have an issue with misformatted vacation emails. Part of the initial mail ends up in the vacation response and the headers of the vacation response end up in the body. Which also leads to the wrong charset being used by (some) MUAs. (Should be utf-8 but the inital mal was ascii only). I think I narrowed the trigger of the bug down to a long Reference: header line. It only happens if the long line is not the first one. In the attached example I sent to the mangled mailbox mymailbox(a)example.com. The sieve rule triggered is this one ("äöü" are only there to demonstrate the breaking charset): if true { vacation :days 7 :addresses ["mymailbox(a)example.com"] text: This is an automated reply; I am away and will not be able to reply to you immediately.I will get back to you as soon as I return.äöüß . ; } Christian -- $ dovecot --version 2.2.13 $ dovecot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.16.0-9-amd64 x86_64 Debian 8.11 disable_plaintext_auth = no dotlock_use_excl = no mail_debug = yes mail_fsync = always mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = acl lazy_expunge listescape mail_log notify managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave imapflags notify mmap_disable = yes namespace expunged { hidden = yes list = no location = maildir:~/expunged prefix = EXPUNGED. separator = / } namespace inbox { inbox = yes location = maildir:~/maildir prefix = separator = / } passdb { args = username_format=%n /etc/passwd driver = passwd-file } plugin { acl = vfile lazy_expunge = EXPUNGED. mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size recipient_delimiter = + sieve = ~/sieve/dovecot.sieve sieve_dir = ~/sieve/ sieve_extensions = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave imapflags notify sieve_max_redirects = 20 } protocols = imap pop3 sieve lmtp service imap-login { client_limit = 40 process_limit = 50 service_count = 0 vsz_limit = 512 M } service imap { process_limit = 2000 vsz_limit = 512 M } service lmtp { process_limit = 200 vsz_limit = 1 G } service managesieve-login { inet_listener sieve { port = 2000 } vsz_limit = 512 M } service pop3-login { client_limit = 40 process_limit = 50 service_count = 0 vsz_limit = 512 M } shutdown_clients = no ssl_cert = </etc/ssl/certs/cert.crt ssl_key = </etc/ssl/private/key.key userdb { args = username_format=%n /etc/passwd driver = passwd-file } verbose_proctitle = yes protocol imap { mail_max_userip_connections = 150 mail_plugins = acl lazy_expunge listescape mail_log notify imap_acl } protocol lmtp { lmtp_save_to_detail_mailbox = yes mail_plugins = acl lazy_expunge listescape mail_log notify sieve }

1 0

INDEX= and dovecot.index.log / dovecot.list.index.log
by Arkadiusz Miśkiewicz 16 Jan '20

16 Jan '20

Using 2.3.8 and mail_location = maildir:/var/mail/%Ln:CONTROL=/var/lib/dovecot/control/%Ln:VOLATILEDIR=/var/lib/dovecot/control/%Ln:INDEX=/var/lib/dovecot/control/%Ln + also user_query = SELECT ... CONCAT('maildir:/var/mail/', LOWER(u.login), '/:CONTROL=/var/lib/dovecot/control/%Ln:VOLATILEDIR=/var/lib/dovecot/control/%Ln:INDEX=/var/lib/dovecot/control/%Ln') AS mail, ... but I noticed that dovecot creates dovecot.index.log dovecot.list.index.log still in /var/mail/XYZ instad of /var/lib/dovecot/control/XYZ. Is that normal? I would expect /var/lib/dovecot/control/XYZ to be used also for these two files. ps. lmtp is used here -- Arkadiusz Miśkiewicz, arekm / ( maven.pl | pld-linux.org )

1 1

dovecot cannot drop privileges inside singularity container
by cesco 15 Jan '20

15 Jan '20

Hi all I'm facing an issue while running dovecot inside a singularity (https://sylabs.io/singularity/) container dovecot version is 2.3.4.1 (configuration below) running on debian buster, inside a container made with singularity version 3.4.2 unfortunately, when I try to start dovecot, it gives: Singularity test.sif:~> cat /var/log/mail.log Dec 30 17:23:38 testnode dovecot: master: Dovecot v2.3.4.1 (f79e8e7e4) starting up for imap, lmtp, sieve, pop3, submission (core dumps disabled) Dec 30 17:23:38 testnode dovecot: anvil: Fatal: We couldn't drop root privileges Dec 30 17:23:38 testnode dovecot: master: Error: service(anvil): command startup failed, throttling for 2 secs the same happens on singularity containers based on debian bullseye or alpine linux 3.9.2 many thanks! nzasch Singularity test.sif:~> doveconf -n # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-6-amd64 x86_64 Debian 10.2 # Hostname: testnode.example.net mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_privileged_group = mail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = " imap lmtp sieve pop3 submission" ssl_cert = </etc/dovecot/private/dovecot.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = passwd }

2 2

Upgrade 2.2.27 to 2.3.9.2: master(imap): net_connect_unix(imap) failed: Resource temporarily unavailable
by Eirik Rye 15 Jan '20

15 Jan '20

Hi, After upgrading Dovecot from version 2.2.27 to 2.3.9.2, we are sporadically seeing lots of these errors in the error log on many of our servers: imap-login: Error: master(imap): net_connect_unix(imap) failed: Resource temporarily unavailable - http://wiki2.dovecot.org/SocketUnavailable The issue is causing significant delays and/or timeouts on login. From what I can tell, this happens because the imap-login service is unable to connect to the imap service socket, however I am unable to identify the root cause of the issue. We have increased the client_limit for the stats service, as described in the upgrade document at (https://wiki2.dovecot.org/Upgrading/2.3) It is set to the same value as the process_limit for imap service. System CPU usage does not appear to be saturated. The CPU usage sits at around 50% when these errors appear. We have doubled the number of file descriptors after upgrading from 2.2.27. It was previously set to 16392 (which worked fine): ~# cat /proc/`pidof dovecot`/limits | grep "open files" Max open files 30000 30000 files We have tried increasing default_process_limit and default_client_limit from the default 1000 to 3000, but this has no effect. Current configuration (with irrelevant parts removed): ~# doveconf -n default_client_limit = 3000 # these were raised after upgrading in attempt to remedy default_process_limit = 3000 default_vsz_limit = 512 M [...] service imap-login { client_limit = 1250 inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_limit = 16 process_min_avail = 16 service_count = 0 vsz_limit = 512 M } service imap { client_limit = 1 process_limit = 20000 } service stats { client_limit = 20000 } [...] We appear to be nowhere near the 20000 process_limit set for the imap service. We are also not seeing any warnings being logged with regards to the process_limit. ~# doveadm who -1 | wc -l 8765 ~# doveadm process status | grep "^imap " | wc -l 7583 ~# ps aux | grep "dovecot/imap" | wc -l 7449 ~# doveadm process status | grep -v "^imap " name pid available_count total_count idle_start last_status_update last_kill_sent stats 19875 12384 582387 0 1578305489 0 pop3-login 19868 1000 0 0 1578061504 0 pop3-login 19867 1000 0 0 1578061503 0 pop3-login 19866 1000 0 0 1578061502 0 pop3-login 19865 1000 0 0 1578061503 0 pop3-login 19864 1000 0 0 1578061503 0 pop3-login 19853 1000 0 0 1578061504 0 pop3-login 19852 1000 0 0 1578061504 0 pop3-login 19851 1000 0 0 1578061504 0 pop3-login 19849 1000 0 0 1578061503 0 pop3-login 19847 1000 0 0 1578061503 0 pop3-login 19846 1000 0 0 1578061503 0 pop3-login 19845 1000 0 0 1578061503 0 pop3-login 19844 1000 0 0 1578061503 0 pop3-login 19843 1000 0 0 1578061503 0 pop3-login 19842 1000 0 0 1578061503 0 pop3-login 19839 1000 0 0 1578061502 0 log 19841 2973 27 0 1578061502 0 imap-login 19873 666 14942 0 1578305488 0 imap-login 19872 523 32792 0 1578305489 0 imap-login 19871 316 62876 0 1578305489 0 imap-login 19870 167 78332 0 1578305489 0 imap-login 19869 118 97989 0 1578305489 0 imap-login 19863 0 184726 0 1578305489 0 imap-login 19862 0 193094 0 1578305489 0 imap-login 19861 0 186800 0 1578305487 0 imap-login 19860 675 17806 0 1578305487 0 imap-login 19859 0 169446 0 1578305489 0 imap-login 19858 0 143517 0 1578305489 0 imap-login 19857 0 119215 0 1578305488 0 imap-login 19856 0 151958 0 1578305489 0 imap-login 19855 483 47036 0 1578305488 0 imap-login 19854 1 185240 0 1578305489 0 imap-login 19840 567 23859 0 1578305485 0 config 19874 2967 124482 0 1578305489 0 auth 19885 2967 124185 0 1578305489 0 anvil 10017 967 7567 0 1578305463 0 -- Eirik

3 13

autoupdate broke
by Steve Egbert 14 Jan '20

14 Jan '20

When attempting to perform autoupdate after my 'autogen.sh' broke, it says that there is missing a file called: dovecot/core/doc/wiki/Makefile.am But in the Github repository, there is a misnamed file named "Makefile.am.in". I think this file is misnamed and should be renamed to "Makefile.am". https://github.com/dovecot/core/tree/master/doc/wiki

3 2

Separate TLS certificate for listener
by Peter Mogensen 13 Jan '20

13 Jan '20

Hi, I've read the howto on overriding the global ssl_cert config by using filters like "local", "remote", "protocol", "local-name". However... is it possible to have a speciel certificate just for a listener where only the port is different? /Peter

2 1

Dovecot HA/Resilience
by Kishore Potnuru 13 Jan '20

13 Jan '20

Hi Dovecot team, I need help in configuring HA/resilence for my dovecot (POP3/IMAP) server. I have one RHEL Linux POP3/IMAP server with Dovecot version 2.2.10. I also installed the postfix(version: 2.6.6) in it. At present it have around 10 domains and each domain is having around 20 email boxes. It has very simple configuration. User's reading the email via some internal applications/Outlook. I would like to create resilience/HA for this environment. Could you please suggest me, what is the easiest way to achieve this? If any one can suggest step by step that will be more helpful to me. Thanks, Kishore

8 16

saving sent mail in sent folder
by soumitri＠iitk.ac.in 13 Jan '20

13 Jan '20

Hello, I am getting following error in info log of dovecot. imap(someshb): Info: Connection closed (No commands sent) in=0 out=374 This error is for some users (not all) while sending email via Thunderbird. The email is sent but not saved int the Sent folder. I tried to debug the issue and getting nothing except following Debug: Effective uid=2121, gid=4619, home=/users02/home/ppd_doaa imap(ppd_doaa): Debug: Namespace inbox: type=private, prefix=INBOX., sep=., inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir:INDEX=/xx/index:CONTROL=/xx/index imap(ppd_doaa): Debug: maildir++: root=/xx/Maildir, index=/xx/index, indexpvt=, control=/xx/index, inbox=/xx/Maildir, alt= imap(ppd_doaa): Debug: Namespace : type=private, prefix=, sep=, inbox=no, hidden=yes, list=no, subscriptions=no location=fail::LAYOUT=none imap(ppd_doaa): Debug: none: root=, index=, indexpvt=, control=, inbox=, alt= namespace has following namespace inbox { hidden = no inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = INBOX. separator = . type = private } i am using dovecot-2.2.36-10.el8.x86_64 Thanks for any help. -- Sincerely, Soumitri

1 0

Replication question
by John 13 Jan '20

13 Jan '20

Hi I'm currently debugging some replication issues between two dovecot 2.3.9.2 servers, where one is live and the other is just a copy used for backup with no imap user access. After initial alignment (with various error messages such as the stalled io messages a fnctl lock messages) I am seeing replication miss messages or stop altogether on mailboxes, even with no further error messages. doveadm: Error: dsync(REMOTE_HOSTNAME): I/O has stalled, no activity for 600 seconds (last sent=mail_change (EOL), last recv=mailbox) doveadm: Error: Couldn't lock /var/vmail/DOMAIN/USER//.dovecot-sync.lock: fcntl(/var/vmail/DOMAIN/USER//.dovecot-sync.lock, write-lock, F_SETLKW) locking failed: Timed out after 30 seconds (WRITE lock held by pid 30307) I was surprised by this because although I know there were replication issues in 2.3.8 I understood these were resolved in 2.3.9 when both servers had 2.3.9. I am still investigating and will post further if I get any useful insights. However, I have a question, which despite using dovecot for many years in this configuration has never occurred to me before. I configured dovecot using the wiki https://wiki.dovecot.org/Replication using tcp and ssl. Both servers have an identical dovecot configuration except for: 1. different hostnames 2. on the backup server I have removed expire and quota plugins in the global mail_plugins 3. in the configuration of mail_replica tcps://hostname:port each server points to the other server's hostname What I just realized is that nowhere in the wiki does it state that both servers should be set up for replication. I had always assumed that was the logical thing to do. So the question is, for successful replication is it sufficient to setup one master configuration and just have a replication process listening on the other master, or should both servers be set up for replication in an almost identical way (with the 3 exceptions above)? thanks for any insights. John

2 1

RE: Unable to authenticate on Dovecot - auth-userdb issue?
by Mark ADAMS 11 Jan '20

11 Jan '20

Uncommented the section on userdb that was commented because it was throwing errors. It’s still throwing an error. Specifically this one: Jan 10 15:42:37 shuttle postfix/smtpd[21046]: connect from pvr[192.168.1.103] Jan 10 15:42:47 shuttle postfix/smtpd[21046]: fatal: no SASL authentication mechanisms Jan 10 15:42:48 shuttle postfix/master[18850]: warning: process /usr/libexec/postfix/smtpd pid 21046 exit status 1 Jan 10 15:42:48 shuttle postfix/master[18850]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling I’ve combed Google for information on “no SASL authentication mechanism” with no solution. I appear to have things configured correctly (unless IM missing something, which is entirely possible given that I’m really struggling with this). Saslauthd is running: # systemctl status saslauthd ● saslauthd.service - SASL authentication daemon. Loaded: loaded (/usr/lib/systemd/system/saslauthd.service; enabled; vendor preset: disabled) Active: active (running) since Mon 2020-01-06 19:13:37 MST; 3 days ago Main PID: 29506 (saslauthd) Memory: 1.5M CGroup: /system.slice/saslauthd.service ├─29506 /usr/sbin/saslauthd -m /run/saslauthd -a pam ├─29507 /usr/sbin/saslauthd -m /run/saslauthd -a pam ├─29508 /usr/sbin/saslauthd -m /run/saslauthd -a pam ├─29509 /usr/sbin/saslauthd -m /run/saslauthd -a pam └─29510 /usr/sbin/saslauthd -m /run/saslauthd -a pam Jan 06 19:13:37 shuttle systemd[1]: Starting SASL authentication daemon.... Jan 06 19:13:37 shuttle saslauthd[29506]: : master pid is: 29506 Jan 06 19:13:37 shuttle systemd[1]: Started SASL authentication daemon.. Jan 06 19:13:37 shuttle saslauthd[29506]: : listening on socket: /run/saslauthd/mux Dovecot and Postfix are running starting and running okay. /var/spool/postfix/private/auth is present and seems to be correct. Here are my current configs on those items: # postconf -n command_directory = /usr/sbin compatibility_level = 2 daemon_directory = /usr/libexec/postfix data_directory = /var/lib/postfix html_directory = /usr/share/doc/postfix/html inet_interfaces = shuttle inet_protocols = all lmtp-filter_destination_concurrency_limit = 2 lmtp_sasl_mechanism_filter = plain mail_owner = postfix mailbox_transport = dovecot:shuttle:lmtp mailq_path = /usr/bin/mailq manpage_directory = /usr/share/man meta_directory = /etc/postfix mydestination = mynetworks myhostname = shuttle mynetworks = 192.168.1.0/24, 127.0.0.0/8 mynetworks_style = subnet myorigin = shuttle newaliases_path = /usr/bin/newaliases queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix/README_FILES sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop shlib_directory = /usr/lib64 smtp-filter_destination_concurrency_limit = 2 smtp_bind_address = 192.168.1.105 smtp_tls_CAfile = /etc/pki/tls/certs/ca-bundle.crt smtp_tls_security_level = may smtpd_banner = $myhostname ESMTP $mail_name ($mail_version) (Mageia Linux) smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = yes smtpd_sasl_local_domain = $myhostname smtpd_sasl_path = private/auth smtpd_sasl_type = dovecot smtpd_tls_CAfile = /etc/pki/tls/certs/ca-bundle.crt smtpd_tls_cert_file = /etc/pki/tls/certs/adams-lan.mail.pem smtpd_tls_key_file = /etc/pki/tls/private/adams-lan.mail.key smtpd_use_tls = yes unknown_local_recipient_reject_code = 450 virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf virtual_mailbox_base = /var/spool/mail/vhosts virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf virtual_transport = dovecot postconf: warning: /etc/postfix/master.cf: unused parameter: flags= # dovecot -n # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf # OS: Linux 5.4.6-desktop-2.mga7 x86_64 Mageia 7 # Hostname: shuttle auth_debug_passwords = yes auth_mechanisms = plain login cram-md5 auth_username_format = %Ln disable_plaintext_auth = no first_valid_uid = 0 last_valid_uid = 10001 mail_gid = 10001 mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_privileged_group = mail mail_uid = 10001 namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = sql } passdb { args = %s driver = pam } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve } service anvil { unix_listener anvil { group = mail mode = 0666 } } service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { group = mode = 0666 user = $default_internal_user } user = dovecot } service imap-login { inet_listener imap { port = 143 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service pop3-login { inet_listener pop3s { port = 995 ssl = yes } } service stats { unix_listener stats-reader { group = mail mode = 0666 } unix_listener stats-writer { group = mail mode = 0666 } } ssl = required ssl_cert = </etc/pki/tls/certs/fullchain.cer ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = passwd } protocol lmtp { hostname = shuttle postmaster_address = postmaster@shuttle I just need this stuff to move mail on my LAN as it did for years prior to this upgrade. I’m perfectly willing to blow this config away and reinstall from scratch, which I’ve done twice already. I’ve been through at least 4 tutorials on the web and nothing has led to my getting this thing working. Despite all that I’ve learned about Postfix + Dovecot + Mysql, I am still not smart enough to figure this out. I’m still looking for help and/or options. I’m also wondering if it might not be a good idea to ditch the configs in /etc/dovecot/conf.d (by commenting out “!include conf.d/*.conf” in dovecot.conf). I’m just looking to move mail on my LAN. This should be simple, no? Thanks again. Mark From: Alexander Dalloz<mailto:ad+lists@uni-x.org> Sent: Friday, January 10, 2020 11:34 AM To: Mark ADAMS<mailto:madams9@msn.com> Subject: Re: Unable to authenticate on Dovecot - auth-userdb issue? Mark, first of all: please take care to whom you reply. Do not communicate directly with my list mail address. Please keep the discussion on the dovecot list. Thanks. Am 09.01.2020 um 18:29 schrieb Mark ADAMS: > At this point, passdb does not support lookups according to the log. Is there something else I should be looking at? > > I’ve worked on this and seem to be making little progress. A sample transaction log looks like this: > > > Jan 09 10:22:32 shuttle dovecot[26851]: master: Warning: SIGHUP received - reloading configuration > Jan 09 10:23:04 shuttle postfix/smtpd[5448]: connect from pvr[192.168.1.103] > Jan 09 10:23:04 shuttle dovecot[5432]: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/modules/auth > Jan 09 10:23:04 shuttle dovecot[5432]: auth: Debug: Module loaded: /usr/lib64/dovecot/modules/auth/lib20_auth_var_expand_crypt.so > Jan 09 10:23:04 shuttle dovecot[5432]: auth: Debug: Read auth token secret from /run/dovecot/auth-token-secret.dat > Jan 09 10:23:04 shuttle dovecot[5432]: auth: Debug: auth client connected (pid=0) > Jan 09 10:23:20 shuttle postfix/smtpd[5448]: 0C6BF4A6302: client=pvr[192.168.1.103] > Jan 09 10:23:30 shuttle postfix/cleanup[5459]: 0C6BF4A6302: message-id=<> > Jan 09 10:23:30 shuttle postfix/qmgr[1385]: 0C6BF4A6302: from=<madams@pvr>, size=180, nrcpt=1 (queue active) > Jan 09 10:23:30 shuttle dovecot[5432]: auth: Debug: master in: USER 1 root@shuttle service=lda > Jan 09 10:23:30 shuttle dovecot[5432]: auth: Debug: static(root): Performing userdb lookup > Jan 09 10:23:30 shuttle dovecot[5432]: auth: Debug: pam(root): Performing passdb lookup > Jan 09 10:23:30 shuttle dovecot[5432]: auth: Debug: pam(root): passdb doesn't support credential lookups > Jan 09 10:23:30 shuttle dovecot[5432]: auth: Debug: pam(root): Finished passdb lookup > Jan 09 10:23:30 shuttle dovecot[5432]: auth: Error: static(root): passdb doesn't support lookups, can't verify user's existence > Jan 09 10:23:30 shuttle dovecot[5432]: auth: Debug: static(root): Finished userdb lookup > Jan 09 10:23:30 shuttle dovecot[5432]: auth: Debug: userdb out: FAIL 1 > Jan 09 10:23:30 shuttle dovecot[5466]: lda(root@shuttle)<5466><>: Error: auth-master: userdb lookup(root@shuttle): Auth USER lookup failed > Jan 09 10:23:30 shuttle dovecot[5466]: lda: Fatal: Internal error occurred. Refer to server log for more information. > Jan 09 10:23:30 shuttle postfix/pipe[5465]: 0C6BF4A6302: to=<root@shuttle>, relay=dovecot, delay=17, delays=17/0.01/0/0.06, dsn=4.3.0, status=deferred (tempora> > Jan 09 10:23:31 shuttle sshd[5468]: Connection closed by 192.168.1.100 port 48324 [preauth] > Jan 09 10:23:31 shuttle postfix/smtpd[5448]: disconnect from pvr[192.168.1.103] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5 > > > My current dovecot configuration looks like this: > > # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf > # OS: Linux 5.4.6-desktop-2.mga7 x86_64 Mageia 7 > # Hostname: shuttle > auth_debug_passwords = yes > auth_username_format = %Ln > disable_plaintext_auth = no > first_valid_uid = 0 > last_valid_uid = 10001 > mail_gid = 10001 > mail_location = mbox:~/mail:INBOX=/var/mail/%u > mail_privileged_group = mail > mail_uid = 10001 > namespace inbox { > inbox = yes > location = > mailbox Drafts { > special_use = \Drafts > } > mailbox Junk { > special_use = \Junk > } > mailbox Sent { > special_use = \Sent > } > mailbox "Sent Messages" { > special_use = \Sent > } > mailbox Trash { > special_use = \Trash > } > prefix = > } > passdb { > args = %s > driver = pam > } > plugin { > sieve = file:~/sieve;active=~/.dovecot.sieve > } > service anvil { > unix_listener anvil { > group = mail > mode = 0666 > } > } > service auth-worker { > user = vmail > } > service auth { > unix_listener /var/spool/postfix/private/auth { > group = postfix > mode = 0666 > user = postfix > } > unix_listener auth-userdb { > group = > mode = 0666 > user = $default_internal_user > } > user = dovecot > } > service imap-login { > inet_listener imap { > port = 143 > } > } > service lmtp { > unix_listener /var/spool/postfix/private/dovecot-lmtp { > group = postfix > mode = 0600 > user = postfix > } > } > service pop3-login { > inet_listener pop3s { > port = 995 > ssl = yes > } > } > service stats { > unix_listener stats-reader { > group = mail > mode = 0666 > } > unix_listener stats-writer { > group = mail > mode = 0666 > } > } > ssl = required > ssl_cert = </etc/pki/tls/certs/fullchain.cer > ssl_dh = # hidden, use -P to show it > ssl_key = # hidden, use -P to show it > protocol lmtp { > hostname = shuttle > postmaster_address = postmaster@shuttle > } > > > As always I appreciate the help and any assistance is appreciated. > > Mark According to your "doveconf -n" output you have no userdb defined. Just do that. https://doc.dovecot.org/configuration_manual/authentication/user_databases_… Maybe this one fits your current system setup https://doc.dovecot.org/configuration_manual/authentication/passwd/#authent… Alexander > From: Alexander Dalloz<mailto:ad+lists@uni-x.org> > Sent: Friday, January 3, 2020 5:26 AM > To: dovecot(a)dovecot.org<mailto:dovecot@dovecot.org> > Subject: Re: Unable to authenticate on Dovecot - auth-userdb issue? > > Am 03.01.2020 um 03:27 schrieb Mark ADAMS: >> Jan 02 18:47:37 shuttle dovecot[6744]: lda(root@shuttle)<6744><>: Error: auth-master: userdb lookup(root@shuttle): connect(/run/dovecot/auth-userdb) failed: Permission denied (euid=8(mail) egid=12(mail) missing +r perm: /run/dovecot/auth-userdb, dir owned by 0:0 mode=0755) > > Run "namei -lv /run/dovecot/auth-userdb" to check the permissions of the > complete path. The auth-userdb socket actually is owned mail:mail > according to your error logging. Is dovecot member of the mail group? > > Actually it does not match the config details you have pasted: > > unix_listener auth-userdb { > group = dovecot > mode = 0600 > user = vmail > } > > On my side it looks like this and I have not custom configured that > part. The defaults are: > > unix_listener auth-userdb { > group = > mode = 0666 > user = $default_internal_user > } > > So on my system the permissions look like this: > > # namei -lv /var/run/dovecot/auth-userdb > f: /var/run/dovecot/auth-userdb > dr-xr-xr-x root root / > drwxr-xr-x root root var > drwxr-xr-x root root run > drwxr-xr-x root dovecot dovecot > srw-rw-rw- dovecot root auth-userdb > >> Jan 02 18:47:37 shuttle dovecot[6744]: lda: Fatal: Internal error occurred. Refer to server log for more information. >> Jan 02 18:47:37 shuttle postfix/pipe[6743]: 6345D4A4A97: to=<root@shuttle>, relay=dovecot, delay=1.1, delays=1.1/0.01/0/0.06, dsn=4.3.0, status=deferred (temporary failure. Command output: lda(root@shuttle): Error: net_connect_unix(/run/dovecot/stats-writer) failed: Permission denied ) >> ^C >> >> >> >> Note: this error references "/run/dovecot/auth-userdb". That isn't even supposed to be the location of that file. I have no idea why that location shows up. The correct location should be "/etc/dovecot/auth-userdb". The file does exist at that location. > > Mark, > > I have no idea why you expect the dovecot sockets to be located inside > /etc/dovecot/. /etc is the FHS location for configurations. /run or > /var/run (typically a symlink on modern linux distributions) is the > right location for runtime files like service sockets. > > You say /etc/dovecot/auth-userdb exists. Am I correct to guess that you > have created that manually with whatever content? > > Alexander > >

1 0

Panic: file mail-index-util.c: line 10 (mail_index_uint32_to_offset): assertion failed: (offset < 0x40000000)
by Ralf Hildebrandt 10 Jan '20

10 Jan '20

I'm trying this: doveadm import -u restore(a)backup.invalid mdbox:/home/copymail2/mdbox "" \ mailbox INBOX header X-Spam Yes nd I'm getting: doveadm(restore(a)backup.invalid): Panic: file mail-index-util.c: line 10 (mail_index_uint32_to_offset): assertion failed: (offset < 0x40000000) doveadm(restore(a)backup.invalid): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7f598de6cac2] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f598de6cbde] -> /usr/lib/dovecot/libdovecot.so.0(+0xe989e) [0x7f598de7789e] -> /usr/lib/dovecot/libdovecot.so.0(+0xe98e1) [0x7f598de778e1] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f598ddced04] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_uint32_to_offset+0x78) [0x7f598e227de8] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_cache_add+0x83b) [0x7f598e2103ab] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_mail_parse_header+0x449) [0x7f598e1f2139] -> /usr/lib/dovecot/libdovecot.so.0(+0xc10a9) [0x7f598de4f0a9] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_memarea+0x7a) [0x7f598de852ea] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read+0x2f) [0x7f598de8562f] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_data+0x3d) [0x7f598de8600d] -> /usr/lib/dovecot/libdovecot.so.0(message_parse_header_next+0x68) [0x7f598de55a58] -> /usr/lib/dovecot/libdovecot.so.0(message_parse_header+0x52) [0x7f598de56432] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xcc561) [0x7f598e1fc561] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xcd85c) [0x7f598e1fd85c] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_storage_search_next_nonblock+0x11d) [0x7f598e1fe04d] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next_nonblock+0x28) [0x7f598e17df38] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next+0x3d) [0x7f598e17df9d] -> doveadm(+0x31b13) [0x557f5d487b13] -> doveadm(+0x2c441) [0x557f5d482441] -> doveadm(+0x2d1c9) [0x557f5d4831c9] -> doveadm(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x20e) [0x557f5d48409e] -> doveadm(doveadm_cmd_run_ver2+0x55e) [0x557f5d4953ee] -> doveadm(doveadm_cmd_try_run_ver2+0x37) [0x557f5d495447] -> doveadm(main+0x1d1) [0x557f5d472211] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f598d3cfb97] -> doveadm(_start+0x2a) [0x557f5d47272a] Aborted (core dumped) I'm using ii dovecot-core 2:2.3.9.2-1+ubuntu18.04 amd64 secure POP3/IMAP server - core files ii dovecot-dbg 2:2.3.9.2-1+ubuntu18.04 amd64 secure POP3/IMAP server - debug symbols ii dovecot-imapd 2:2.3.9.2-1+ubuntu18.04 amd64 secure POP3/IMAP server - IMAP daemon ii dovecot-lmtpd 2:2.3.9.2-1+ubuntu18.04 amd64 secure POP3/IMAP server - LMTP server ii dovecot-lucene 2:2.3.9.2-1+ubuntu18.04 amd64 secure POP3/IMAP server - Lucene support Running in gdb results in this backtrace: Program received signal SIGABRT, Aborted. __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 51../sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 #1 0x00007ffff68e4801 in __GI_abort () at abort.c:79 #2 0x00007ffff736d851 in default_fatal_finish (status=0, type=LOG_TYPE_PANIC) at failures.c:459 #3 fatal_handler_real (ctx=<optimized out>, format=<optimized out>, args=<optimized out>) at failures.c:471 #4 0x00007ffff736d8e1 in default_fatal_handler (ctx=<optimized out>, format=<optimized out>, args=<optimized out>) at failures.c:479 #5 0x00007ffff72c4d04 in i_panic (format=format@entry=0x7ffff772dd00 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:523 #6 0x00007ffff771dde8 in mail_index_uint32_to_offset (offset=<optimized out>) at mail-index-util.c:10 #7 0x00007ffff77063ab in mail_cache_header_fields_write (ctx=0x555555855330, buffer=<optimized out>, buffer=<optimized out>) at mail-cache-transaction.c:609 #8 mail_cache_header_add_field (field_idx=15, ctx=0x555555855330) at mail-cache-transaction.c:690 #9 mail_cache_add (ctx=0x555555855330, seq=1, field_idx=field_idx@entry=15, data=0x7ffff773b6d6, data_size=0) at mail-cache-transaction.c:739 #10 0x00007ffff76ea82c in index_mail_cache_add_idx (mail=mail@entry=0x555555869f18, field_idx=field_idx@entry=15, data=data@entry=0x7ffff773b6d6, data_size=data_size@entry=0) at index-mail.c:631 #11 0x00007ffff76e8139 in index_mail_parse_header_finish (mail=<optimized out>) at index-mail-headers.c:132 #12 index_mail_parse_header (part=<optimized out>, hdr=<optimized out>, mail=<optimized out>) at index-mail-headers.c:312 #13 0x00007ffff73450a9 in read_header (mstream=0x555555874740) at istream-header-filter.c:356 #14 i_stream_header_filter_read (stream=0x555555874740) at istream-header-filter.c:446 #15 0x00007ffff737b2ea in i_stream_read_memarea (stream=stream@entry=0x5555558747c0) at istream.c:313 #16 0x00007ffff737b62f in i_stream_read (stream=stream@entry=0x5555558747c0) at istream.c:271 #17 0x00007ffff737c00d in i_stream_read_data (stream=0x5555558747c0, data_r=data_r@entry=0x7fffffffdc08, size_r=size_r@entry=0x7fffffffdc10, threshold=threshold@entry=1) at istream.c:745 #18 0x00007ffff734ba58 in i_stream_read_bytes (wanted=2, size_r=0x7fffffffdc10, data_r=0x7fffffffdc08, stream=<optimized out>) at ../../src/lib/istream.h:217 #19 message_parse_header_next (ctx=0x555555869db0, hdr_r=hdr_r@entry=0x7fffffffdc70) at message-header-parser.c:85 #20 0x00007ffff734c432 in message_parse_header (input=<optimized out>, hdr_size=hdr_size@entry=0x0, flags=flags@entry=MESSAGE_HEADER_PARSER_FLAG_CLEAN_ONELINE, callback=callback@entry=0x7ffff76f1aa0 <search_header>, context=context@entry=0x7fffffffdce0) at message-header-parser.c:392 #21 0x00007ffff76f2561 in search_arg_match_text (ctx=0x555555856fa0, args=0x5555558216d0) at index-search.c:759 #22 search_match_once (ctx=0x555555856fa0) at index-search.c:1399 #23 0x00007ffff76f385c in search_match_next (ctx=0x555555856fa0) at index-search.c:1506 #24 search_more_with_mail (mail=<optimized out>, ctx=0x555555856fa0) at index-search.c:1623 #25 search_more_with_prefetching (mail_r=<optimized out>, ctx=<optimized out>) at index-search.c:1705 #26 search_more (ctx=ctx@entry=0x555555856fa0, mail_r=mail_r@entry=0x7fffffffde10) at index-search.c:1779 #27 0x00007ffff76f404d in index_storage_search_next_nonblock (_ctx=0x555555856fa0, mail_r=0x7fffffffdee0, tryagain_r=0x7fffffffde77) at index-search.c:1807 #28 0x00007ffff7673f38 in mailbox_search_next_nonblock (ctx=0x555555856fa0, mail_r=0x7fffffffdee0, tryagain_r=<optimized out>) at mail-storage.c:2307 #29 0x00007ffff7673f9d in mailbox_search_next (ctx=0x555555856fa0, mail_r=mail_r@entry=0x7fffffffdee0) at mail-storage.c:2292 #30 0x0000555555586d52 in doveadm_mail_iter_next (iter=<optimized out>, mail_r=mail_r@entry=0x7fffffffdee0) at doveadm-mail-iter.c:160 #31 0x0000555555585b13 in cmd_import_box (search_args=<optimized out>, info=0x55555584e7b8, dest_user=<optimized out>, ctx=0x55555581fdb8) at doveadm-mail-import.c:142 #32 cmd_import_run (_ctx=0x55555581fdb8, user=0x5555558374b8) at doveadm-mail-import.c:202 #33 0x0000555555580441 in doveadm_mail_next_user (ctx=ctx@entry=0x55555581fdb8, error_r=error_r@entry=0x7fffffffe0c0) at doveadm-mail.c:462 #34 0x00005555555810db in doveadm_mail_single_user (ctx=ctx@entry=0x55555581fdb8, error_r=error_r@entry=0x7fffffffe0c0) at doveadm-mail.c:492 #35 0x00005555555811c9 in doveadm_mail_cmd_exec (ctx=ctx@entry=0x55555581fdb8, wildcard_user=wildcard_user@entry=0x0) at doveadm-mail.c:653 #36 0x000055555558209e in doveadm_cmd_ver2_to_mail_cmd_wrapper (cctx=<optimized out>) at doveadm-mail.c:1144 #37 0x00005555555933ee in doveadm_cmd_run_ver2 (argc=10, argv=0x5555557f6bb8, cctx=cctx@entry=0x7fffffffe2b0) at doveadm-cmd.c:575 #38 0x0000555555593447 in doveadm_cmd_try_run_ver2 (cmd_name=<optimized out>, argc=<optimized out>, argv=<optimized out>, cctx=0x7fffffffe2b0) at doveadm-cmd.c:497 #39 0x0000555555570211 in main (argc=<optimized out>, argv=<optimized out>) at doveadm.c:395 (gdb) -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt(a)charite.de | https://www.charite.de

1 0

2FA for Dovecot
by Kees de Jong 09 Jan '20

09 Jan '20

Hi, My goal is to protect my mail account with 2FA, which isn't a crazy idea in 2020. Therefore, I would like to know the possibilities of configuring 2FA for Dovecot. In the documentation there are some hints of e.g. OTP in Dovecot [1] and using FreeIPA with Dovecot [2], where FreeIPA has the ability to enable OTP per user [3]. But I can't really find much practical information about such a setup. The documentation of Dovecot is quite silent about the OTP authentication mechanism and the same goes for the FreeIPA and Dovecot combination with OTP. So my question is; is this even a supported setup? And if so, where is the documentation? And if not, what's the recommended method to secure your mail setup? I can imagine alternative solutions like putting the submission and IMAP port behind a VPN and have all the clients use that VPN. And for the public internet, simply use a web interface (e.g. Nextcloud with Rainloop) which supports 2FA. But I prefer having OTP for e.g. Android and Linux clients. [1] https://doc.dovecot.org/configuration_manual/authentication/authentication_… [2] https://www.freeipa.org/page/Dovecot_Integration [3] https://www.freeipa.org/page/Using_FreeIPA_and_FreeRadius_as_a_RADIUS_based… -- Met vriendelijke groet, Kees de Jong De informatie opgenomen in deze e-mail kan vertrouwelijk zijn en is uitsluitend bestemd voor de geadresseerde(n). Indien u deze e-mail onterecht ontvangt, wordt u verzocht de inhoud niet te gebruiken en de afzender direct te informeren door de e-mail te retourneren. Aan deze e-mail inclusief de bijlagen kunnen geen rechten ontleend worden, tenzij schriftelijk anders wordt overeengekomen. -- The information contained in this e-mail may be confidential and is intended to be exclusively for the addressee(s). Should you receive this e-mail unintentionally, please do not use the contents herein and notify the sender immediately by return e-mail. This e-mail including the attachments are not legally binding, unless otherwise agreed upon in writing. -- OpenPGP fingerprint: 0x0E45C98AB51428E6

6 5

Thunderbird Subscription missing
by Phillip Bruce 08 Jan '20

08 Jan '20

Hello, I have an usual isshere we are using thunderbird for client. The version of dovecot is as followed: # dovecot --version 2.2.22 (fe789d2) The dovecot service is runnon on VERSION="16.04.6 LTS (Xenial Xerus)" Thunderbird version 68.3.1 (32 bit) version. What happening when managing subscription there seems to be folders that are missing. They were not purged nor did anything happen like an outage. If you look at this below Sep19 (for September 2019), It list only the following folders: 16Sep19, 25Sep19 26Sep19 [cid:image002.png@01D5C532.1485D710] To me this looks like some indexing gone south. I've tried this # doveadm mailbox status -u arhive doveadm mailbox status [-u <user>|-A] [-S <socket_path>] <fields> <mailbox> [...] # doveadm mailbox status -u archive Maildir # doveadm mailbox status [-u <user>|-A] [-S <socket_path>] <fields> <mailbox> [...] r# doveadm mailbox status -u archive INBOX @doveadm mailbox status [-u <user>|-A] [-S <socket_path>] <fields> <mailbox> [...] The user is archive The user home folder is this: # pwd /home/mail/archive/Maildir This what in it. # ls cur dovecot.index.log dovecot.mailbox.log.2 dovecot-uidvalidity.50ca19bb tmp dovecot.index dovecot.index.log.2 dovecot-uidlist dovecot-uidvalidity.50ca19bc dovecot.index.cache dovecot-keywords dovecot-uidvalidity dovecot-uidvalidity.50ca1b2d dovecot.index.cache.gz dovecot-keywords.gz dovecot-uidvalidity.50ca1990 new dovecot.index.cache.gz.2 dovecot.mailbox.log dovecot-uidvalidity.50ca19ab subscriptions # doveadm log errors # I don't see in errors. I tried to reload dovecot. # doveadm instance list path name last used running /var/run/dovecot dovecot 2020-01-06 22:41:46 yes root@dc3-ops-prod-vserv-archive01:~# There nothing in the logs that I can see. # doveadm user -u archive userdb: archive user : archive system_groups_user: archive uid : 1011 gid : 1011 home : /home/archive root@dc3-ops-prod-vserv-archive01:~# Any suggestions would be helpful. Thanks, Phillip Bruce Sr. System Engineer 415-590-8491 office "The answer to your Traveling Solution" [Deem Demo] This message and any files or text attached to it are intended only for the recipients named above, and contain information that may be confidential or privileged. If you are not an intended recipient, or you have reason to believe that you received this message in error, you must not read, copy, use or disclose this communication. Please also notify the sender by replying to this message, and then delete all copies of it from your system. Thank you.

3 9

Solved an solution: Pop 3 SSL login dos not work any longer
by Jutta Wrage 07 Jan '20

07 Jan '20

Hi! Logging in with the same use I tested already before, I now get this message in the debug log written by dovecot: pop3-login: Warning: Auth process not responding, delayed sending initial response (greeting): user=<> The SSL negotiation did complete. But then there went something wrong with the user authentification. As ist did work already before, I guess, it is not the clients fault. System where dovecot (pop3 and imap) is installed: latest Ubuntu. My changes after successful repeated pop3 connection with by the testing user: 1. Turning debug logging on 2. minor changes I did search a lot for a solution to this problem but still have no clue how to solve it. Hmm... guess my "minor changes" caused the problem: Found this in debug log now for the start of SSL: "pop3-login: Error: auth: connect(director) failed: No such file or directory" Need to read more about these directors, I think. Maybe they are not needed at the system at all. Jutta

1 0

Thunderbird Issue - Dovecot
by Phillip Bruce 07 Jan '20

07 Jan '20

I have not ever heard of or use dovecot before. Our users uses thunderbird client which happens to be the lastest version. Below is what we get as you can see we are missing folders from September 2019. Dovecot seem to be running but I am not sure why it be missing these folders. The server Dovecot is running on is Unbuntu 16.04 version. # dovecot --version 2.2.22 (fe789d2) The above is the version of dovecot we are running. I would appreciate anyone Helping to trouble shoot this issue. I don't think this is a thunderbird issue. [cid:image001.png@01D5C4B4.9AD315E0] Thunderbird version is this below: [cid:image002.jpg@01D5C4B4.9AD315E0] It looks like we are not indexing. We are not using a SQL database either for this. Any ideas where I can start. Also far I know there been no outages during that time. I appreciate any thoughts or help. Phillip Bruce Sr. System Engineer 415-590-8491 office "The answer to your Traveling Solutino" [Deem Demo] This message and any files or text attached to it are intended only for the recipients named above, and contain information that may be confidential or privileged. If you are not an intended recipient, or you have reason to believe that you received this message in error, you must not read, copy, use or disclose this communication. Please also notify the sender by replying to this message, and then delete all copies of it from your system. Thank you.

2 1

Re: 2FA for Dovecot
by Kees de Jong 07 Jan '20

07 Jan '20

I did mention OTP for 2FA, and OTP can be indeed Google Authenticator, the reason I'm not that specific is because the documentation isn't :) PAM can indeed be used for this, I've read some list conversations about this [1], [2]. However, as I mentioned in my first post, I'm interested to know about the internal Dovecot authentication methods. Since using PAM requires local users and I prefer using the virtual users inside Dovecot. There are several OTP authentication mechanisms in the source code [3], [4], [5]. However, these lack documentation [6]. Therefore, I would like to explore these builtin authentication methods first. Is there someone in the Dovecot community that can provide some more information about this, or the status of these authentication modules? [1] https://dovecot.org/pipermail/dovecot/2013-March/088844.html [2] https://dovecot.org/pipermail/dovecot/2007-February/019340.html [3] https://github.com/dovecot/core/blob/master/src/auth/mech-otp.c [4] https://github.com/dovecot/core/blob/master/src/auth/mech-otp-skey-common.c [5] https://github.com/dovecot/core/blob/master/src/auth/password-scheme-otp.c [6] https://doc.dovecot.org/configuration_manual/authentication/authentication_… On Tue, 2020-01-07 at 05:54 +0200, dovecot-request(a)dovecot.org wrote: > You don't say what sort of 2FA you're considering, but wouldn't you > just tell Dovecot to use PAM, and then extend PAM to use a 2FA > module. For example there's a Google Auth one available in the second > link below. > > https://doc.dovecot.org/configuration_manual/authentication/pam/ > https://github.com/google/google-authenticator-libpam > > P. > (Not a dovecot expert, although I know a fair amount about Linux)

1 0

doveadm auth cache flush does not work through director
by Joe Wong 07 Jan '20

07 Jan '20

Hello, I am using Dovecot 2.3.7.2, configure with Director and Dovecot backend. Everything is running fine through director. However, I found the auth cache flush command can only work on dovecot backend server but not in Director. Any idea? - Joe

1 0

Logging what sieve does
by ＠lbutlr 06 Jan '20

06 Jan '20

Is there anyway to log exactly what sieve does with a message? (Like, what rules triggered, flags applied, headers rewritten, if the message was placed anywhere else before final delivery, etc). -- In Genua, stories came to life. In Genua, someone set out to make dreams come true. Remember some of your dreams?

2 1

LDA-DUPES insists mon being created in the wrong home directory
by Hans Rasmussen 06 Jan '20

06 Jan '20

Hi Vacation sieve is not respecting the days: arguement .dovecot.lda-dupes wants to be created in /home/user which doesn't exist. Below is a log fragment.. Jan 5 17:56:24 mailserv dovecot: lmtp(hans): Error: file_dotlock_open(/home/hans/.dovecot.lda-dupes) failed: No such file or directory dovecot -n says... # 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) # OS: Linux 4.15.0-72-generic x86_64 Ubuntu 18.04.3 LTS ext4 auth_mechanisms = plain login first_valid_gid = 999 first_valid_uid = 999 mail_gid = 999 mail_home = /var/lib/vmail/%u mail_location = maildir:/var/lib/vmail/%u/Maildir mail_privileged_group = mail mail_uid = 999 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext Shouldn't .dovecot.lda-dupes respect the mail_home argument. Thanks much Hans

2 1

Will service restart cause file corruption？
by hfh＠cndns.com 06 Jan '20

06 Jan '20

If the program is writing email content to the disk, will the program restart cause the email content to be written incomplete and the file will be damaged? hfh(a)cndns.com

1 0

Get protocol used in the post login script
by André Rodier 05 Jan '20

05 Jan '20

Hello, I have a post-login script, in Dovecot, that send warnings to users using XMPP. However, I would like hthe warning to include the protocol used, i.e. IMAP or POP3. How can I do this, please? Thanks, André.

1 0

Re: Dovecot, pigeonhole and hardlinks
by Gionatan Danti 03 Jan '20

03 Jan '20

Il 03-01-2020 19:51 @lbutlr ha scritto: > On 03 Jan 2020, at 06:16, Gionatan Danti <g.danti(a)assyoma.it> wrote: >> What surprises me is that hard-linking identical messages saves so >> much space, yet nobody seems to asking/using such feature. >> So, either a) few cares about saving space or b) few are using the >> pigeonhole plugin. And both a) and b) seems unlikely... > > Or > > c) we see nearly no truly identical messages. Well, sure, this is another possibility. However, on all mailserver which I manage, a significant portion of total emails are messages sent to groups/lists rather than single recipient. Cyrus and other proprietary mailservers (eg: CommuniGate Pro) use unix shared storage (aka hardlink) to avoid copying the message to multiple inboxes. This is especially valuable when a) large groups exists or b) a large message is sent to groups/lists. Please also note that, when not using Pigeonhole, Dovecot *does* use hardlink for messages sent to multiple recipients and/or groups. It is only when Pigeonhole is active that the hardlinking does not happen. Thanks. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti(a)assyoma.it - info(a)assyoma.it GPG public key ID: FF5F32A8

1 0

Dovecot, pigeonhole and hardlinks
by Gionatan Danti 03 Jan '20

03 Jan '20

Hi list, many moons ago I asked about preserving hardlink between identical messages when pigeonhole (for sieve filtering) was used. The reply was that, while hardlink worked well for non-filtered messages, using pigeonhole broke the hardlink (ie: some message-specific data was appended to the actual mail file). Here you can find the original thread: https://dovecot.org/pipermail/dovecot/2015-November/102579.html I would ask the same things today: is dovecot+pigeonhole capable of storing the same incoming message, sent to multiple rcpt or to a group/alias expanding in multiple recipients, as a single hardlink? Note: I know about SIS, but it has some important drawback and I would avoid using it. Thanks. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti(a)assyoma.it - info(a)assyoma.it GPG public key ID: FF5F32A8

2 4

Unable to authenticate on Dovecot - auth-userdb issue?
by Mark ADAMS 03 Jan '20

03 Jan '20

Some general information: Mageia Linux 5.4.6-desktop-2.mga7 2.3.7.2 (3c910f64b) postfix + dovecot + mysql 192.168.1.105 (shuttle) the email server machine 192.168.1.103 (pvr) the mail client machine I am unable to authenticate to send email. I've looked at postfix but I can't get past dovecot's authentication. Here is what I'm seeing in logs: Jan 02 18:46:47 shuttle sshd[6660]: Connection closed by 192.168.1.100 port 48506 [preauth] Jan 02 18:47:05 shuttle postfix/smtpd[6352]: connect from pvr[192.168.1.103] Jan 02 18:47:16 shuttle postfix/smtpd[6352]: lost connection after CONNECT from pvr[192.168.1.103] Jan 02 18:47:16 shuttle postfix/smtpd[6352]: disconnect from pvr[192.168.1.103] commands=0/0 Jan 02 18:47:36 shuttle postfix/smtpd[6352]: connect from pvr[192.168.1.103] Jan 02 18:47:36 shuttle postfix/smtpd[6352]: 6345D4A4A97: client=pvr[192.168.1.103] Jan 02 18:47:37 shuttle postfix/cleanup[6500]: 6345D4A4A97: message-id=<> Jan 02 18:47:37 shuttle postfix/qmgr[1385]: 6345D4A4A97: from=<madams@pvr>, size=485, nrcpt=1 (queue active) Jan 02 18:47:37 shuttle postfix/smtpd[6352]: disconnect from pvr[192.168.1.103] helo=1 mail=1 rcpt=1 data=1 quit=1 commands=5 Jan 02 18:47:37 shuttle dovecot[6744]: lda(root@shuttle)<6744><>: Error: auth-master: userdb lookup(root@shuttle): connect(/run/dovecot/auth-userdb) failed: Permission denied (euid=8(mail) egid=12(mail) missing +r perm: /run/dovecot/auth-userdb, dir owned by 0:0 mode=0755) Jan 02 18:47:37 shuttle dovecot[6744]: lda: Fatal: Internal error occurred. Refer to server log for more information. Jan 02 18:47:37 shuttle postfix/pipe[6743]: 6345D4A4A97: to=<root@shuttle>, relay=dovecot, delay=1.1, delays=1.1/0.01/0/0.06, dsn=4.3.0, status=deferred (temporary failure. Command output: lda(root@shuttle): Error: net_connect_unix(/run/dovecot/stats-writer) failed: Permission denied ) ^C Note: this error references "/run/dovecot/auth-userdb". That isn't even supposed to be the location of that file. I have no idea why that location shows up. The correct location should be "/etc/dovecot/auth-userdb". The file does exist at that location. There is no "base_dir" configured in /etc/dovecot/dovecot.conf. When I do try an point the configuration at the correct base_dir, I get this when I try to restart dovecot: -- The unit dovecot.service has entered the 'failed' state with result 'exit-code'. Jan 02 18:51:50 shuttle dovecot[7226]: master: Error: service(aggregator): unlink(/etc/dovecot/replication-notify-fifo) failed: Read-only file system Jan 02 18:51:50 shuttle dovecot[7226]: master: Error: service(pop3): unlink(/etc/dovecot/login/pop3) failed: Read-only file system Jan 02 18:51:50 shuttle dovecot[7226]: master: Error: service(old-stats): unlink(/etc/dovecot/old-stats) failed: Read-only file system Jan 02 18:51:50 shuttle dovecot[7226]: master: Error: service(old-stats): unlink(/etc/dovecot/old-stats-mail) failed: Read-only file system Jan 02 18:51:50 shuttle dovecot[7226]: master: Error: service(old-stats): unlink(/etc/dovecot/old-stats-user) failed: Read-only file system Jan 02 18:51:50 shuttle dovecot[7226]: master: Error: service(log): unlink(/etc/dovecot/log-errors) failed: Read-only file system Jan 02 18:51:50 shuttle dovecot[7226]: master: Error: service(lmtp): unlink(/etc/dovecot/lmtp) failed: Read-only file system Jan 02 18:51:50 shuttle dovecot[7226]: master: Error: service(ipc): unlink(/etc/dovecot/ipc) failed: Read-only file system Jan 02 18:51:50 shuttle dovecot[7226]: master: Error: service(ipc): unlink(/etc/dovecot/login/ipc-proxy) failed: Read-only file system Jan 02 18:51:50 shuttle dovecot[7226]: master: Error: service(indexer-worker): unlink(/etc/dovecot/indexer-worker) failed: Read-only file system And there are about 30 lines of "read-only file system" errors. I haven't been able to track down the cause of that. Once the line "base_dir = /etc/dovecot" is commented out in /etc/dovecot/dovecot.conf, I can start dovecot: # systemctl status dovecot ● dovecot.service - Dovecot IMAP/POP3 email server Loaded: loaded (/usr/lib/systemd/system/dovecot.service; enabled; vendor preset: disabled) Active: active (running) since Thu 2020-01-02 18:54:15 MST; 5s ago Docs: man:dovecot(1) http://wiki2.dovecot.org/ Main PID: 7550 (dovecot) Memory: 3.8M CGroup: /system.slice/dovecot.service ├─7550 /usr/sbin/dovecot -F ├─7554 dovecot/anvil ├─7555 dovecot/log └─7556 dovecot/config Jan 02 18:54:15 shuttle systemd[1]: Started Dovecot IMAP/POP3 email server. Jan 02 18:54:15 shuttle dovecot[7550]: master: Dovecot v2.3.7.2 (3c910f64b) starting up for imap, pop3, lmtp Jan 02 18:54:15 shuttle dovecot[7550]: master: Error: t_readlink(/etc/dovecot/dovecot.conf) failed: readlink() failed: Invalid argument I have no idea what's up with the t_readlink error. Might be related to the errors above. I can't really find out much about it. Trying to send email shows no apparent errors: [madams@pvr ~]$ mail root@shuttle Subject: testing test . EOT [madams@pvr ~]$ Trying to send mail in detail looks like this: $ openssl s_client -connect shuttle:25 -starttls smtp CONNECTED(00000003) depth=0 C = US, ST = NM, O = Personal, OU = Private verify error:num=18:self signed certificate verify return:1 depth=0 C = US, ST = NM, O = Personal, OU = Private verify return:1 --- Certificate chain 0 s:/C=US/ST=NM/O=Personal/OU=Private i:/C=US/ST=NM/O=Personal/OU=Private --- Server certificate <It produces all the right certificate information> -----END CERTIFICATE----- subject=/C=US/ST=NM/O=Personal/OU=Private issuer=/C=US/ST=NM/O=Personal/OU=Private --- No client certificate CA names sent Peer signing digest: SHA512 Server Temp Key: ECDH, P-256, 256 bits --- SSL handshake has read 1764 bytes and written 467 bytes --- New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384 Server public key is 2048 bit Secure Renegotiation IS supported Compression: NONE Expansion: NONE No ALPN negotiated SSL-Session: <and all the SSL information is good> Start Time: 1578016729 Timeout : 300 (sec) Verify return code: 18 (self signed certificate) --- 250 CHUNKING ehlo shuttle 250-shuttle 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-AUTH PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-DSN 250-SMTPUTF8 250 CHUNKING mail from: madams@pvr 250 2.1.0 Ok rcpt to: root@shuttle 250 2.1.5 Ok data 354 End data with <CR><LF>.<CR><LF> subject: testing test . 250 2.0.0 Ok: queued as A73A84A4AE4 quit 221 2.0.0 Bye closed That transaction produces this in journalctl: an 02 19:04:15 shuttle postfix/smtpd[8856]: connect from pvr[192.168.1.103] Jan 02 19:04:15 shuttle dovecot[7555]: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/modules/auth Jan 02 19:04:15 shuttle dovecot[7555]: auth: Debug: Module loaded: /usr/lib64/dovecot/modules/auth/lib20_auth_var_expand_crypt.so Jan 02 19:04:15 shuttle dovecot[7555]: auth: Debug: Read auth token secret from /run/dovecot/auth-token-secret.dat Jan 02 19:04:15 shuttle dovecot[7555]: auth: Debug: auth client connected (pid=0) Jan 02 19:04:31 shuttle postfix/smtpd[8856]: B621F4A4B0F: client=pvr[192.168.1.103] Jan 02 19:04:39 shuttle postfix/cleanup[8914]: B621F4A4B0F: message-id=<> Jan 02 19:04:40 shuttle postfix/qmgr[1385]: B621F4A4B0F: from=<madams@pvr>, size=184, nrcpt=1 (queue active) Jan 02 19:04:40 shuttle dovecot[8947]: lda(root@shuttle)<8947><>: Error: auth-master: userdb lookup(root@shuttle): connect(/run/dovecot/auth-userdb) failed: Permission denied (euid=8(mail) egid=12(mail) missing +r perm: /run/dovecot/auth-userdb, dir owned by 0:0 mode=0755) Jan 02 19:04:40 shuttle dovecot[8947]: lda: Fatal: Internal error occurred. Refer to server log for more information. Jan 02 19:04:40 shuttle postfix/pipe[8946]: B621F4A4B0F: to=<root@shuttle>, relay=dovecot, delay=13, delays=13/0.01/0/0.06, dsn=4.3.0, status=deferred (temporary failure. Command output: lda(root@shuttle): Error: net_connect_unix(/run/dovecot/stats-writer) failed: Permission denied ) Jan 02 19:04:43 shuttle postfix/smtpd[8856]: disconnect from pvr[192.168.1.103] ehlo=2 starttls=1 mail=1 rcpt=1 data=1 quit=1 commands=7 Jan 02 19:04:48 shuttle sshd[8962]: Connection closed by 192.168.1.100 port 48596 [preauth] I've experimented with ownership and permissions on run/dovecot/auth-userdb. It's running as vmail:dovecot, but the permissions I set on it are not persistent - they keep reverting to srw----- whenever I restart dovecot. This is correct given the configuration in dovecot.conf, but should those permissions be set to 0600? Also, that shouldn't be happening in /run/dovcot, it should all be happening in /etc/dovcot. Attempting to test authentication over TLS isn't working and I'm so confused at this point I'm not even sure I should be doing it. 250 CHUNKING ehlo shuttle 250-shuttle 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-AUTH PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-DSN 250-SMTPUTF8 250 CHUNKING auth login 535 5.7.8 Error: authentication failed: Invalid authentication mechanism auth login bWFkYW1z bm9uZQ== 501 5.5.4 Syntax: AUTH mechanism auth plain bWFkYW1z bm9uZQ== 501 5.5.4 Syntax: AUTH mechanism And those are base64 encoded credentials (bWFkYW1z bm9uZQ==). Here is my config. All I want to do is run from machines on my lan to Thunderbird on my desktop so I can get notices about events and system health from my other servers. Should this be so hard? Is this Postfix's fault? Can anybody help with this? Thanks. And now that config: # dovecot -n # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf # OS: Linux 5.4.6-desktop-2.mga7 x86_64 Mageia 7 # Hostname: shuttle auth_debug_passwords = yes auth_username_format = %Ln disable_plaintext_auth = no first_valid_uid = 0 last_valid_uid = 10001 mail_gid = 10001 mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_privileged_group = mail mail_uid = 10001 namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = %s driver = pam } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve } service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { group = dovecot mode = 0600 user = vmail } user = dovecot } service imap-login { inet_listener imap { port = 143 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service pop3-login { inet_listener pop3s { port = 995 ssl = yes } } ssl = required ssl_cert = </etc/pki/tls/certs/fullchain.cer ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it protocol lmtp { hostname = shuttle postmaster_address = postmaster@shuttle }

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iOS Client Not Showing Email Previews, Dovecot Issue?
by asai＠globalchangemusic.org 02 Jan '20

02 Jan '20

Greetings, Just wondering if anybody would know why one of our users' iOS Mail app client doesn't show the email previews (the first few sentences of the email)? We had migrated from an earlier (2.2.4) version of Dovecot to the latest version and once that was done, the user began to report this issue. I don't know if it's a Dovecot issue or not, but can anyone point me in the right direction to begin to debug? Thank you, Asai

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spamsieve question
by Gerben Wierda 31 Dec '19

31 Dec '19

My new dovecot covers spam/ham training through the standard Spam_train and Notspam_train mailboxes. When a message is copied (I’m using macOS/iOS standard Apple clients) it triggers the spam/ham learning by rspamd. So far so good. When I move a message to Spam_train I’d like it to be removed immediately after learning. When I move a message to Notspam_train, I’d like it to move back where it came from after having been piped The first is I think doable, but how? Is the second doable? Gerben Wierda Chess and the Art of Enterprise Architecture <https://ea.rna.nl/the-book/> Mastering ArchiMate <https://ea.rna.nl/the-book-edition-iii/> Architecture for Real Enterprises <https://www.infoworld.com/blog/architecture-for-real-enterprises/> at InfoWorld On Slippery Ice <https://eapj.org/on-slippery-ice/> at EAPJ

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Problem with big number of pop3-login [1 pre-login]
by Григорий Семенов 30 Dec '19

30 Dec '19

Dear all, I have recently migrated from my old Debian 8 (jessie) system to a new VM with fresh Debian 10 (buster) installation. Previous dovecot version was 2.2.13 and now I have 2.3.4.1. Dovecot was setup from Debian packages. Mostly, it is working, but one problem is just frustrating me. The number of some pop3-login processes are getting higher and higher until they reach my login_max_processes_count option which is equal 1000. From ps aux it looks like this: dovecot 55067 0.0 0.0 8192 6340 ? S 00:09 0:00 dovecot/pop3-login [1 pre-login] dovecot 55344 0.0 0.0 8192 6388 ? S 00:35 0:00 dovecot/pop3-login [1 pre-login] dovecot 55351 0.0 0.0 8192 6268 ? S 00:35 0:00 dovecot/pop3-login [1 pre-login] dovecot 55354 0.0 0.0 8192 6388 ? S 00:35 0:00 dovecot/pop3-login [1 pre-login] dovecot 55594 0.0 0.0 8192 6280 ? S 00:36 0:00 dovecot/pop3-login [1 pre-login] dovecot 56822 0.0 0.0 8192 6300 ? S 00:36 0:00 dovecot/pop3-login [1 pre-login] dovecot 56996 0.0 0.0 8192 6268 ? S 00:36 0:00 dovecot/pop3-login [1 pre-login] … Once it reaches the login_max_processes_count value my users start to complain to no new mail is arriving. Restart resolves the problem just for some time, until it will come to a limit next time (sometimes it take 1 day, sometimes 1 hour). In my old system I had nothing like that, but I guess it could be done something wrong during migration. I don’t know if it is significant but instead of real users I deal with only one third-party application which utilizeses 5 simultaneous tcp connections to check mailboxes via SSL\TLS. My dovecot is not public, and there is nothing else besides these 5 connections. Currently, in a config I have this: service pop3-login { process_min_avail = 4 process_limit = 4 client_limit = 100 service_count = 100 Please friends give me a way how to handle the situation. Might it be a bug? ========= Regards, Greg Semenov

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Re: Issue running Dovecot in Docker Container
by Naveen Reddy 30 Dec '19

30 Dec '19

I'm not using internal logging. I'm running the docker with the logging to the host. I have used the same options you have specified. The problem is that the below processes are not running inside docker container whereas the standalone dovecot is running these processes(meaning without container) dovecot-Dovecot/auth dovecot-Dovecot/ssl-params dovecot-Director/lmtp dovecot-Director/ssl-params dovecot-Director/imap-login director Thanks & Regards, Naveen On Mon, Dec 30, 2019 at 3:16 PM Marc Roos <M.Roos(a)f1-outsourcing.eu> wrote: > > If you are running your container as root. You will not have the issues > I encountered. Dovecot is dropping to the 'dovecot' and 'dovenull'(?) > when needed, this is fine. > > PS. I would not recommend using internal logging, use something like > this to log to the host or remote syslog. > docker run -v /dev/log:/dev/log -it dovecot-proxy > > > -----Original Message----- > Subject: Re: Issue running Dovecot in Docker Container > > Hi Marc, > > I can see the processes are running as a root in container environment. > Do you think that still have issues ? > Here is the processes running inside container: > > bash-4.2# ps -ef > UID PID PPID C STIME TTY TIME CMD > root 1 0 0 Dec27 ? 00:00:00 /bin/bash /bootstrap.sh > root 7 1 0 Dec27 ? 00:00:00 /usr/sbin/dovecot -F -c > /etc/dovecot/director.conf > root 8 1 0 Dec27 ? 00:00:00 /usr/sbin/dovecot -F > root 9 1 0 Dec27 ? 00:00:00 sleep 36000d > dovecot 10 8 0 Dec27 ? 00:00:00 dovecot-Dovecot/anvil > dovecot 14 7 0 Dec27 ? 00:00:00 dovecot-Director/anvil > root 267 8 0 Dec27 ? 00:00:00 dovecot-Dovecot/log > root 269 8 0 Dec27 ? 00:00:08 dovecot-Dovecot/config > root 281 7 0 Dec27 ? 00:00:00 dovecot-Director/log > root 283 7 0 Dec27 ? 00:00:00 dovecot-Director/config > > > > > Thanks & Regards, > Naveen > > > > On Mon, Dec 30, 2019 at 2:56 PM Marc Roos <M.Roos(a)f1-outsourcing.eu> > wrote: > > > > I have noticed several issues with dovecot, trying to run it > without > root. Which is preferable in any container environment. Maybe you > would > like me to document these somewhere? So at some point they can be > applied. > > > -----Original Message----- > From: Naveen Reddy [mailto:naveenreddy99@gmail.com] > Sent: 30 December 2019 09:02 > To: Aki Tuomi > Cc: dovecot(a)dovecot.org > Subject: Re: Issue running Dovecot in Docker Container > > Hi, I can see those values correctly with the doveconf -nc > command. > Here > is the part of output: > > bash-4.2# doveconf -nc /etc/dovecot/director.conf # 2.2.36 > (1f10bfa63): > /etc/dovecot/director.conf # OS: Linux > 4.1.12-112.14.11.el7uek.x86_64 > x86_64 Red Hat Enterprise Linux Server release 7.7 (Maipo) # > Hostname: > 69b492645b56 auth_debug = yes auth_default_realm = > xxxxxxxxxxxxxxxx > > auth_verbose = yes base_dir = /var/run/dovecot_director > debug_log_path = > $log_path director_mail_servers = xxxxxxxxxxxxxxxxxx > director_servers = > xxxxxxxxxxxxxxxxxxxx disable_plaintext_auth = no first_valid_uid = > 1000 > hostname = xxxxxxxxxxxxxxxxxxxx info_log_path = $log_path > instance_name > = Director lmtp_proxy = yes log_path = /dovecot.log > login_log_format_elements = user=<%u> method=%m rip=%r lip=%l > mpid=%e %c > home=%h > > Thanks & Regards, > Naveen > > > > On Fri, Dec 27, 2019 at 10:08 PM Aki Tuomi > <aki.tuomi(a)open-xchange.com> > wrote: > > > > Can you check with `doveconf -nc /path/to/director.conf` > that the > values are actually set correctly? > > Aki > > On 27/12/2019 15:34 Naveen Reddy > <naveenreddy99(a)gmail.com> > wrote: > > > > The conf.d files are not included. I have added > !include > conf.d/*.conf to director.conf and reloaded the dovecot and > director > services. > > conf.d/10-logging also has the following lines: > > log_path = /dovecot.log > info_log_path = $log_path > debug_log_path = $log_path > > > The /dovecot.log file still shows empty. Nothing > is being > logged to that file. > > > Thanks & Regards, > Naveen > > > > On Thu, Dec 26, 2019 at 10:52 PM Aki Tuomi < > aki.tuomi(a)open-xchange.com> wrote: > > > > Do you have !include or !try_include in > director.conf? > The conf.d files are not included otherwise. > > Aki > > On 26/12/2019 11:27 Naveen Reddy < > naveenreddy99(a)gmail.com> wrote: > > > I have tried these in the > 10-logging.conf but no > luck. There is nothing logged to the file. > > bash-4.2# ps -ef > UID PID PPID C STIME TTY > > TIME CMD > root 1 0 0 Dec23 ? > > 00:00:00 > /bin/bash /bootstrap.sh > root 8 1 0 Dec23 ? > > 00:00:00 > sleep 36000d > root 15681 0 0 08:51 > pts/1 > 00:00:00 bash > root 16340 0 0 09:19 ? > > 00:00:00 > /usr/sbin/dovecot -c /etc/dovecot/director.conf > dovecot 16341 16340 0 09:19 ? > > 00:00:00 > dovecot-Director/anvil > root 16342 16340 0 09:19 ? > > 00:00:00 > dovecot-Director/log > root 16344 16340 0 09:19 ? > > 00:00:00 > dovecot-Director/config > root 16390 0 0 09:22 ? > > 00:00:00 > /usr/sbin/dovecot -c /etc/dovecot/dovecot.conf > dovecot 16391 16390 0 09:22 ? > > 00:00:00 > dovecot-Dovecot/anvil > root 16392 16390 0 09:22 ? > > 00:00:00 > dovecot-Dovecot/log > root 16394 16390 0 09:22 ? > > 00:00:00 > dovecot-Dovecot/config > root 16406 15681 0 09:22 > pts/1 > 00:00:00 ps > -ef > > > The below processes are not > starting as well. > > dovecot-Dovecot/auth > dovecot-Dovecot/ssl-params > dovecot-Director/lmtp > dovecot-Director/ssl-params > dovecot-Director/imap-login > director > > Thanks & Regards, > Naveen > > > > On Tue, Dec 24, 2019 at 10:54 PM > Aki Tuomi < > aki.tuomi(a)open-xchange.com> wrote: > > > > > > On 24/12/2019 > 12:33 > Naveen Reddy < > naveenreddy99(a)gmail.com> wrote: > > > Hello, > > We need help with > an issue that we are > running into when we are trying to run Dovecot in Docker > container. > > Also how do we > enable debugging for > dovecot. Logs doesn't show any info about the issue. > > Below processes > are > not running when a > Director service is started: > > > dovecot-Dovecot/auth > > dovecot-Dovecot/ssl-params > > dovecot-Director/lmtp > > dovecot-Director/ssl-params > > dovecot-Director/imap-login director > > Here is the > version > that I'm running and > including the dovecot -n output below: > > bash-4.2# dovecot > --version > 2.2.36 > > > bash-4.2# dovecot > -n > # 2.2.36 (xxxxx): > /etc/dovecot/dovecot.conf > # OS: Linux > 4.1.12-112.14.11.el7uek.x86_64 > x86_64 Red Hat Enterprise Linux Server release 7.7 (Maipo) > # Hostname: XXXXXXX > auth_debug = yes > auth_default_realm > = xxxxxxxxxxxx > auth_verbose = yes > > disable_plaintext_auth = no > dotlock_use_excl = > no > hostname = > xxxxxxxxxxxxxxxx > instance_name = > Dovecot > > login_log_format_elements = user=<%u> > method=%m rip=%r lip=%l mpid=%e %c home=% domain=%d > mail_debug = yes > mail_fsync = always > mail_gid = imapd > mail_home = > /xxxxxxxxxxx/%d/%n > mail_location = > dbox:~/ > mail_uid = imapd > mmap_disable = yes > passdb { > args = > /etc/dovecot/lookups/ldap-pass.conf > driver = ldap > } > passdb { > args = > /etc/dovecot/lookups/xxxx.conf > driver = ldap > } > plugin { > stats_refresh = > 30 secs > stats_track_cmds > = yes > } > protocols = imap > lmtp > service auth { > client_limit = > 4096 > unix_listener > auth-userdb { > mode = 0777 > } > } > service imap-login > { > chroot = login > client_limit = 0 > > drop_priv_before_exec = no > executable = > imap-login > extra_groups = > group = > idle_kill = 0 > inet_listener > imap { > address = > port = 1144 > ssl = no > } > inet_listener > imaps { > address = > port = 994 > ssl = yes > } > privileged_group > = > process_limit = 0 > > process_min_avail > = 0 > protocol = imap > service_count = > 50 > type = login > user = > $default_login_user > vsz_limit = > 18446744073709551615 B > } > service imap { > service_count = > 50 > } > service lmtp { > executable = > lmtp > -L > inet_listener > lmtp { > address = > port = 10025 > } > } > service stats { > fifo_listener > stats-mail { > mode = 0600 > user = imapd > } > } > ssl_cert = > </xxxxxxx/cert/dovecot.pem > ssl_cipher_list = > XXXXXX > ssl_key = # > hidden, use -P to show it > ssl_protocols = > XXXXX > userdb { > args = > /etc/dovecot/lookups/ldap-user.conf > driver = ldap > } > userdb { > args = > /etc/dovecot/lookups/xxxxxxx.conf > driver = ldap > } > > > Thanks & Regards, > Naveen > > > > Try setting > > log_path=/dovecot.log > info_log_path=$log_path > debug_log_path=$log_path > --- > Aki Tuomi > > > --- > Aki Tuomi > > > --- > Aki Tuomi > > > > > >

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Re: Issue running Dovecot in Docker Container
by Naveen Reddy 30 Dec '19

30 Dec '19

Hi Marc, I can see the processes are running as a root in container environment. Do you think that still have issues ? Here is the processes running inside container: bash-4.2# ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 Dec27 ? 00:00:00 /bin/bash /bootstrap.sh root 7 1 0 Dec27 ? 00:00:00 /usr/sbin/dovecot -F -c /etc/dovecot/director.conf root 8 1 0 Dec27 ? 00:00:00 /usr/sbin/dovecot -F root 9 1 0 Dec27 ? 00:00:00 sleep 36000d dovecot 10 8 0 Dec27 ? 00:00:00 dovecot-Dovecot/anvil dovecot 14 7 0 Dec27 ? 00:00:00 dovecot-Director/anvil root 267 8 0 Dec27 ? 00:00:00 dovecot-Dovecot/log root 269 8 0 Dec27 ? 00:00:08 dovecot-Dovecot/config root 281 7 0 Dec27 ? 00:00:00 dovecot-Director/log root 283 7 0 Dec27 ? 00:00:00 dovecot-Director/config Thanks & Regards, Naveen On Mon, Dec 30, 2019 at 2:56 PM Marc Roos <M.Roos(a)f1-outsourcing.eu> wrote: > > I have noticed several issues with dovecot, trying to run it without > root. Which is preferable in any container environment. Maybe you would > like me to document these somewhere? So at some point they can be > applied. > > > -----Original Message----- > From: Naveen Reddy [mailto:naveenreddy99@gmail.com] > Sent: 30 December 2019 09:02 > To: Aki Tuomi > Cc: dovecot(a)dovecot.org > Subject: Re: Issue running Dovecot in Docker Container > > Hi, I can see those values correctly with the doveconf -nc command. Here > is the part of output: > > bash-4.2# doveconf -nc /etc/dovecot/director.conf # 2.2.36 (1f10bfa63): > /etc/dovecot/director.conf # OS: Linux 4.1.12-112.14.11.el7uek.x86_64 > x86_64 Red Hat Enterprise Linux Server release 7.7 (Maipo) # Hostname: > 69b492645b56 auth_debug = yes auth_default_realm = xxxxxxxxxxxxxxxx > auth_verbose = yes base_dir = /var/run/dovecot_director debug_log_path = > $log_path director_mail_servers = xxxxxxxxxxxxxxxxxx director_servers = > xxxxxxxxxxxxxxxxxxxx disable_plaintext_auth = no first_valid_uid = 1000 > hostname = xxxxxxxxxxxxxxxxxxxx info_log_path = $log_path instance_name > = Director lmtp_proxy = yes log_path = /dovecot.log > login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c > home=%h > > Thanks & Regards, > Naveen > > > > On Fri, Dec 27, 2019 at 10:08 PM Aki Tuomi <aki.tuomi(a)open-xchange.com> > wrote: > > > > Can you check with `doveconf -nc /path/to/director.conf` that the > values are actually set correctly? > > Aki > > On 27/12/2019 15:34 Naveen Reddy <naveenreddy99(a)gmail.com> > > wrote: > > > > The conf.d files are not included. I have added !include > conf.d/*.conf to director.conf and reloaded the dovecot and director > services. > > conf.d/10-logging also has the following lines: > > log_path = /dovecot.log > info_log_path = $log_path > debug_log_path = $log_path > > > The /dovecot.log file still shows empty. Nothing is being > logged to that file. > > > Thanks & Regards, > Naveen > > > > On Thu, Dec 26, 2019 at 10:52 PM Aki Tuomi < > aki.tuomi(a)open-xchange.com> wrote: > > > > Do you have !include or !try_include in > director.conf? > The conf.d files are not included otherwise. > > Aki > > On 26/12/2019 11:27 Naveen Reddy < > naveenreddy99(a)gmail.com> wrote: > > > I have tried these in the 10-logging.conf > but no > luck. There is nothing logged to the file. > > bash-4.2# ps -ef > UID PID PPID C STIME TTY > TIME CMD > root 1 0 0 Dec23 ? > 00:00:00 > /bin/bash /bootstrap.sh > root 8 1 0 Dec23 ? > 00:00:00 > sleep 36000d > root 15681 0 0 08:51 pts/1 > 00:00:00 bash > root 16340 0 0 09:19 ? > 00:00:00 > /usr/sbin/dovecot -c /etc/dovecot/director.conf > dovecot 16341 16340 0 09:19 ? > 00:00:00 > dovecot-Director/anvil > root 16342 16340 0 09:19 ? > 00:00:00 > dovecot-Director/log > root 16344 16340 0 09:19 ? > 00:00:00 > dovecot-Director/config > root 16390 0 0 09:22 ? > 00:00:00 > /usr/sbin/dovecot -c /etc/dovecot/dovecot.conf > dovecot 16391 16390 0 09:22 ? > 00:00:00 > dovecot-Dovecot/anvil > root 16392 16390 0 09:22 ? > 00:00:00 > dovecot-Dovecot/log > root 16394 16390 0 09:22 ? > 00:00:00 > dovecot-Dovecot/config > root 16406 15681 0 09:22 pts/1 > 00:00:00 ps > -ef > > > The below processes are not starting as > well. > > dovecot-Dovecot/auth > dovecot-Dovecot/ssl-params > dovecot-Director/lmtp > dovecot-Director/ssl-params > dovecot-Director/imap-login director > > Thanks & Regards, > Naveen > > > > On Tue, Dec 24, 2019 at 10:54 PM Aki Tuomi > < > aki.tuomi(a)open-xchange.com> wrote: > > > > > > On 24/12/2019 12:33 Naveen > Reddy < > naveenreddy99(a)gmail.com> wrote: > > > Hello, > > We need help with an issue > that we are > running into when we are trying to run Dovecot in Docker container. > Also how do we enable > debugging for > dovecot. Logs doesn't show any info about the issue. > > Below processes are not > running when a > Director service is started: > > dovecot-Dovecot/auth > dovecot-Dovecot/ssl-params > dovecot-Director/lmtp > dovecot-Director/ssl-params > > dovecot-Director/imap-login director > > Here is the version that > I'm running and > including the dovecot -n output below: > > bash-4.2# dovecot --version > 2.2.36 > > > bash-4.2# dovecot -n > # 2.2.36 (xxxxx): > /etc/dovecot/dovecot.conf > # OS: Linux > 4.1.12-112.14.11.el7uek.x86_64 > x86_64 Red Hat Enterprise Linux Server release 7.7 (Maipo) > # Hostname: XXXXXXX > auth_debug = yes > auth_default_realm = > xxxxxxxxxxxx > auth_verbose = yes > disable_plaintext_auth = no > dotlock_use_excl = no > hostname = xxxxxxxxxxxxxxxx > instance_name = Dovecot > login_log_format_elements > = user=<%u> > method=%m rip=%r lip=%l mpid=%e %c home=% domain=%d > mail_debug = yes > mail_fsync = always > mail_gid = imapd > mail_home = > /xxxxxxxxxxx/%d/%n > mail_location = dbox:~/ > mail_uid = imapd > mmap_disable = yes > passdb { > args = > /etc/dovecot/lookups/ldap-pass.conf > driver = ldap > } > passdb { > args = > /etc/dovecot/lookups/xxxx.conf > driver = ldap > } > plugin { > stats_refresh = 30 secs > stats_track_cmds = yes > } > protocols = imap lmtp > service auth { > client_limit = 4096 > unix_listener > auth-userdb { > mode = 0777 > } > } > service imap-login { > chroot = login > client_limit = 0 > drop_priv_before_exec = > no > executable = imap-login > extra_groups = > group = > idle_kill = 0 > inet_listener imap { > address = > port = 1144 > ssl = no > } > inet_listener imaps { > address = > port = 994 > ssl = yes > } > privileged_group = > process_limit = 0 > process_min_avail = 0 > protocol = imap > service_count = 50 > type = login > user = > $default_login_user > vsz_limit = > 18446744073709551615 B > } > service imap { > service_count = 50 > } > service lmtp { > executable = lmtp -L > inet_listener lmtp { > address = > port = 10025 > } > } > service stats { > fifo_listener stats-mail > { > mode = 0600 > user = imapd > } > } > ssl_cert = > </xxxxxxx/cert/dovecot.pem > ssl_cipher_list = XXXXXX > ssl_key = # hidden, use > -P to show it > ssl_protocols = XXXXX > userdb { > args = > /etc/dovecot/lookups/ldap-user.conf > driver = ldap > } > userdb { > args = > /etc/dovecot/lookups/xxxxxxx.conf > driver = ldap > } > > > Thanks & Regards, > Naveen > > > > Try setting > > log_path=/dovecot.log > info_log_path=$log_path > debug_log_path=$log_path > --- > Aki Tuomi > > > --- > Aki Tuomi > > > --- > Aki Tuomi > > >

2 1

Issue running Dovecot in Docker Container
by Naveen Reddy 30 Dec '19

30 Dec '19

Hello, We need help with an issue that we are running into when we are trying to run Dovecot in Docker container. Also how do we enable debugging for dovecot. Logs doesn't show any info about the issue. Below processes are not running when a Director service is started: dovecot-Dovecot/auth dovecot-Dovecot/ssl-params dovecot-Director/lmtp dovecot-Director/ssl-params dovecot-Director/imap-login director Here is the version that I'm running and including the dovecot -n output below: bash-4.2# dovecot --version 2.2.36 bash-4.2# dovecot -n # 2.2.36 (xxxxx): /etc/dovecot/dovecot.conf # OS: Linux 4.1.12-112.14.11.el7uek.x86_64 x86_64 Red Hat Enterprise Linux Server release 7.7 (Maipo) # Hostname: XXXXXXX auth_debug = yes auth_default_realm = xxxxxxxxxxxx auth_verbose = yes disable_plaintext_auth = no dotlock_use_excl = no hostname = xxxxxxxxxxxxxxxx instance_name = Dovecot login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c home=% domain=%d mail_debug = yes mail_fsync = always mail_gid = imapd mail_home = /xxxxxxxxxxx/%d/%n mail_location = dbox:~/ mail_uid = imapd mmap_disable = yes passdb { args = /etc/dovecot/lookups/ldap-pass.conf driver = ldap } passdb { args = /etc/dovecot/lookups/xxxx.conf driver = ldap } plugin { stats_refresh = 30 secs stats_track_cmds = yes } protocols = imap lmtp service auth { client_limit = 4096 unix_listener auth-userdb { mode = 0777 } } service imap-login { chroot = login client_limit = 0 drop_priv_before_exec = no executable = imap-login extra_groups = group = idle_kill = 0 inet_listener imap { address = port = 1144 ssl = no } inet_listener imaps { address = port = 994 ssl = yes } privileged_group = process_limit = 0 process_min_avail = 0 protocol = imap service_count = 50 type = login user = $default_login_user vsz_limit = 18446744073709551615 B } service imap { service_count = 50 } service lmtp { executable = lmtp -L inet_listener lmtp { address = port = 10025 } } service stats { fifo_listener stats-mail { mode = 0600 user = imapd } } ssl_cert = </xxxxxxx/cert/dovecot.pem ssl_cipher_list = XXXXXX ssl_key = # hidden, use -P to show it ssl_protocols = XXXXX userdb { args = /etc/dovecot/lookups/ldap-user.conf driver = ldap } userdb { args = /etc/dovecot/lookups/xxxxxxx.conf driver = ldap } Thanks & Regards, Naveen

3 7

Dovecot Postfix MySQL Authentication Issues
by jason hirsh 29 Dec '19

29 Dec '19

I aim using mysql 5.7.28 Postfix 3.4,8 Dovecot 2.3.9.2 It began a whole and I was using the Purple Hat Organiation installation guide which was loaded with minor errors Now dead in water

1 0

Dovecot Postfix MySQL Authentication Issues
by jason hirsh 29 Dec '19

29 Dec '19

I am I a situation where I have to wipe my remote server and reinstall, Its been a while since I built a server and I am not as sharp as I use to be I am running FreeBSD 12.1. well at least the server is... I am getting constant authentication errors like Dec 28 22:10:18 triggerfish dovecot[21809]: imap-login: Aborted login (auth failed, 1 attempts in 6 secs): user=<jason(a)example.com>, method=PLAIN, rip=73.150.178.106, lip=x.x.x.x, TLS, session=<QFSvEM+aA8lJlrJq> Dec 28 22:10:19 triggerfish dovecot[21809]: imap-login: Aborted login (client didn't finish SASL auth, waited 4 secs): user=<>, method=LOGIN, rip=73.150.178.106, lip=x.x.x.x, TLS, session=<FNjXEM+aBMlJlrJq> Dec 28 22:10:19 triggerfish dovecot[21809]: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=73.150.178.106, lip=x,x,x,x, TLS: Connection closed, session=<pNccEc+aBslJlrJq> Dec 28 22:10:24 triggerfish dovecot[21809]: imap-login: Aborted login (auth failed, 1 attempts in 6 secs): user=<jason(a)example.com>, method=LOGIN, rip=73.150.178.106, lip=x,x,x,x, TLS, session=<hukLEc+aBclJlrJq> results of postconf -n are broken_sasl_auth_clients = yes command_directory = /usr/local/sbin compatibility_level = 2 daemon_directory = /usr/local/libexec/postfix data_directory = /var/db/postfix debug_peer_level = 2 debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd $daemon_directory/$process_name $process_id & sleep 5 dovecot_destination_recipient_limit = 1 html_directory = /usr/local/share/doc/postfix inet_protocols = ipv4 mail_owner = postfix mailq_path = /usr/local/bin/mailq manpage_directory = /usr/local/man message_size_limit = 25600000 meta_directory = /usr/local/libexec/postfix mydestination = localhost mydomain = example.com myhostname = mail.example.com mynetworks_style = host newaliases_path = /usr/local/bin/newaliases queue_directory = /var/spool/postfix readme_directory = /usr/local/share/doc/postfix relay_recipient_maps = mysql:/usr/local/etc/postfix/mysql-virtual-mailbox-maps.cf sample_directory = /usr/local/etc/postfix sendmail_path = /usr/local/sbin/sendmail setgid_group = maildrop shlib_directory = /usr/local/lib/postfix smtp_tls_note_starttls_offer = yes smtp_use_tls = yes smtpd_delay_reject = yes smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_invalid_hostname, reject_unknown_hostname, reject_non_fqdn_hostname, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, permit smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unauth_destination, reject_unauth_pipelining, reject_rbl_client bl.spamcop.net, reject_rbl_client sbl-xbl.spamhaus.org, reject_rbl_client zen.spamhaus.org, reject_rbl_client dnsbl.sorbs.net, reject_rbl_client rhsbl.sorbs.net, reject_rbl_client db.wpbl.info, reject_rbl_client cbl.abuseat.org, reject_rbl_client proxies.blackholes.wirehub.net, reject_rbl_client query.bondedsender.org permit smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_type = dovecot smtpd_sender_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unlisted_sender, permit smtpd_tls_auth_only = yes smtpd_tls_cert_file = /usr/local/etc/ssl/more/server.crt smtpd_tls_key_file = /usr/local/etc/ssl/more/server.key smtpd_tls_loglevel = 0 smtpd_tls_mandatory_protocols = !SSLv2,!SSLv3 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s smtpd_use_tls = yes soft_bounce = no tls_random_source = dev:/dev/urandom unknown_local_recipient_reject_code = 550 virtual_alias_maps = mysql:/usr/local/etc/postfix/mysql-virtual-alias-maps.cf virtual_mailbox_domains = mysql:/usr/local/etc/postfix/mysql-virtual-domains-maps.cf virtual_mailbox_limit = 51200000 virtual_mailbox_maps = mysql:/usr/local/etc/postfix/mysql-virtual-mailbox-maps.cf virtual_transport = lmtp:unix:private/dovecot-lmtp Not sure if I need to post main.cf. I have been beating my head against the screen for a week and thought I'd try here. Probably some stupid typo or stupid action on my part. Feel free to slap me around

2 1

Using "doveadm pw" as unpriviledged user
by Ralf Jung 29 Dec '19

29 Dec '19

Hi all, Some time ago, I wrote a small CGI script to let users change their IMAP password. The script runs as www-data user and uses "doveadm pw" to check if a password hash matches a password. Unfortunately, this means that I have to make large parts of my dovecot config world-readable, as otherwise I get errors like this: doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/10-auth.conf line 123: Couldn't open include file /etc/dovecot/conf.d/auth-sql.conf.ext: Permission denied I understand doveadm also does plenty of things that interact with the running dovecot instance and thus need access to the config, but for generating hashes or comparing hashes with passwords, it should not be necessary to read the dovecot config. This shouldn't require a properly setup dovecot on this machine at all, in fact. I'd prefer to make the config not world-readable, and indeed the Debian packaging sometimes makes those files not-world-readable on upgrades, breaking my setup. Is there any way to call "doveadm pw" as a users that cannot read the dovecot config on the current machine? This happens with the following versions of the dovecot debian package: 1:2.3.4.1-5+deb10u1~bpo9+1, 1:2.3.4.1-5+deb10u1 Thanks! Ralf PS: Please keep me in Cc, as I am not subscribed to the list.

1 0

Packages missing from repo
by Jon Geerars 29 Dec '19

29 Dec '19

Hi, Since a couple of weeks the Dovecot packages for Debian Jessie and Ubuntu Trusty have disappeared from the repo. According to https://repo.dovecot.org/ they should be in https://repo.dovecot.org/ce-2.3-latest/debian/jessie and https://repo.dovecot.org/ce-2.3-latest/ubuntu/trusty, but that leads to a 404. Where can I find them? Jon

2 3

Dovecot proxy: authentication best practices
by William Edwards 28 Dec '19

28 Dec '19

Hi! I have a few questions regarding Dovecot proxy: 1. 1.1 If I understand correctly, setting 'nopassword' in the proxy passdb file, authentication is completely up to the destination host. Setting 'nopassword' in no way means the proxy becomes an open relay. Is this correct? 1.2 Are there any security implications when using 'nopassword' on the proxy? 2. 2.1 I would like to avoid having to store all users in a passdb file on the proxy. I would much rather specify a domain for which Dovecot proxy will route all users to a specific host. Is there a way to let Dovecot proxy route to a destination host based on domain, so individual users don't have to be specified in the proxy passdb? 2.2 Is it correct that userdb does not have any effect on proxying and it can be left out of the config? Source: https://dovecot.org/pipermail/dovecot/2013-October/093138.html (point 2) Met vriendelijke groeten, William Edwards T. 040 - 711 44 96 E. wedwards(a)cyberfusion.nl

2 2

Move mailbox/folder tree?
by Marc Roos 27 Dec '19

27 Dec '19

What would be the adviced method of moving a complete mailbox/folder tree? Eg. to a different namespace. Is this possible with 'doveadm move -u test'

1 0

Setting up expunge rules on a per user basis?
by Peter Reinhold 27 Dec '19

27 Dec '19

Hi all, I was wondering, is it possible to setup for instance expunge rules on a per user basis, when I am using userdb SQL lookups (or, possibly via post-login scripts) Reading the docs it seems like its possible, but I am not entirely sure about the data I should return, so have any of you done something like this, and could maybe post an example? -- Peter Reinhold

1 0

Saving Attachments
by ＠lbutlr 26 Dec '19

26 Dec '19

I have an account that mostly receives automated emails with attachments. I would like to save those attachments outside of the mail/IMAP area and then add a link (in the headers) to the saved attachment in the original mail. I do not need to strip the attachment from the email. I’ve looked at 10-mail.conf. but I am using Maildir and I do not want to alter the email other than adding a header like X-Local-link: URL://server/path/to/file If mdbox or sdbox are the only options for this, can I specify that for a single user account instead of for all my users? My other idea was to break out my old ripmime script that I wrote for procmail and do something in sieve like if anyof (header :contains [“content-type"] [ “multiupart”, “other types”]) { fileinto :create “TempAttach”; } And then let ripmime loose on .TempAttach/new/ via a periodic cron job knowing the message would end up being filed in whatever default mailbox after the copy was dropped in the temp mail, but that doesn’t get me the added header with the link to the attachment without a lot of work. I suppose I could generate a second mail with the details of the attachment (size, name, sender, date). Not ideal. Suggestions? -- No one ever thinks of themselves as one of Them. We're always one of Us. It's Them that do the bad things.

1 0

Thunderbird, server side filtering (sieve) and new email not in "inbox"
by Jesus Cea 25 Dec '19

25 Dec '19

Migrating my extensive thunderbird filtering rules to sieve has the unfortunate effect that thunderbird doesn't realize that there is new email in other mailboxes beside "inbox". According to ancient documentation, <http://kb.mozillazine.org/How_do_I_check_for_new_messages_in_other_folders#…>, I could configure Thunderbird to check each mailbox periodically, but I have >500 mailboxes and I rather prefer the server to notify the client when new email is avaliable somewhere. Reading between lines in that document, looks like Thunderbird would support STATUS updates while in "IDLE". Is that the case?. Do you know how could I configure dovecot to provide that kind of information to thunderbird?. Maybe some extension? I am aware of "notify", but thunderbird is not "notify" compatible. I can write an IMAP4 proxy to "inject" replies to thunderbird side-fetched via "notify", but I need to know what thunderbird expect. Do you have any idea?. Thanks for your time and expertise. -- Jesús Cea Avión _/_/ _/_/_/ _/_/_/ jcea(a)jcea.es - http://www.jcea.es/ _/_/ _/_/ _/_/ _/_/ _/_/ Twitter: @jcea _/_/ _/_/ _/_/_/_/_/ jabber / xmpp:jcea@jabber.org _/_/ _/_/ _/_/ _/_/ _/_/ "Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/ "El amor es poner tu felicidad en la felicidad de otro" - Leibniz

1 0

Is there a way to hide the top level virtual IMAP folder when using the virtual plugin?
by Robert L Mathews 24 Dec '19

24 Dec '19

I'm experimenting with the Virtual plugin to give users access to folders like "All Mail", "Recent" and so on, similar to Gmail. Something like this works properly: mail_location = maildir:~/ namespace { inbox = yes location = prefix = INBOX. separator = . type = private } namespace { prefix = INBOX.virtual. separator = . location = virtual:virtual list = children ignore_on_failure = yes } I can then create "virtual/All Mail/dovecot-virtual" and "virtual/Recent/dovecot-virtual" in the maildir directory, and it works. However, when accessed using IMAP, an IMAP folder named "virtual" shows in the folder hierarchy, with "All Mail" and "Recent" descended from "virtual". It looks like: INBOX Drafts Sent Trash virtual All Mail Recent I'd prefer the virtual folders to be a level up the hierarchy without the "virtual" parent visible, like: INBOX All Mail Drafts Recent Sent Trash Is that possible? I've tried changing the "prefix = INBOX.virtual." on the virtual namespace to just "prefix = INBOX.", but that causes a "Duplicate namespace prefix" error. I also tried using "alias_for" to merge the namespaces, but that causes "namespace configuration error: Namespace virtual. can't have alias_for=INBOX. to a different storage type (virtual vs maildir)". -- Robert L Mathews

1 1

When is a new mail not unseen?
by Philip Colmer 24 Dec '19

24 Dec '19

I'm trying to diagnose a really strange situation where certain emails, when submitted to the mailbox by Postfix, are not considered to be unseen by Dovecot. During testing, I've shut down anything else on the server that might want to access the mailbox. I submit the email to the local postfix instance which then says it has delivered it to the mailbox: Dec 23 09:51:35 ip-10-35-194-108 postfix/smtpd[3283]: connect from localhost[127.0.0.1] Dec 23 09:51:35 ip-10-35-194-108 postfix/smtpd[3283]: 5A0BF40261: client=localhost[127.0.0.1] Dec 23 09:51:35 ip-10-35-194-108 postfix/cleanup[3286]: 5A0BF40261: message-id=<20191223095135.5A0BF40261(a)servicedesk.linaro.org> Dec 23 09:51:35 ip-10-35-194-108 postfix/smtpd[3283]: disconnect from localhost[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5 Dec 23 09:51:35 ip-10-35-194-108 postfix/qmgr[1660]: 5A0BF40261: from=< philip.colmer(a)linaro.org>, size=702, nrcpt=1 (queue active) Dec 23 09:51:35 ip-10-35-194-108 postfix/local[3287]: 5A0BF40261: to=<local-it-support@localhost>, relay=local, delay=0.06, delays=0.04/0.02/0/0, dsn=2.0.0, status=sent (delivered to mailbox) Dec 23 09:51:35 ip-10-35-194-108 postfix/qmgr[1660]: 5A0BF40261: removed I then use this command to query the state of the mailbox: sudo doveadm mailbox status -u local-it-support all INBOX and get this response: INBOX messages=142 recent=0 uidnext=5596 uidvalidity=1455577845 unseen=0 highestmodseq=1163 vsize=11315688 guid=2a997739f55ac2560d180000e171d23e firstsaved=1577094051 What can be happening that means that Dovecot doesn't treat a newly delivered message as unseen? Installation details: # 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) # OS: Linux 4.15.0-1041-aws x86_64 Ubuntu 18.04.3 LTS auth_verbose = yes auth_verbose_passwords = yes disable_plaintext_auth = no listen = 127.0.0.1 mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_privileged_group = mail namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } protocols = " imap" ssl = no ssl_cert = </etc/dovecot/private/dovecot.pem ssl_client_ca_dir = /etc/ssl/certs ssl_key = # hidden, use -P to show it userdb { driver = passwd } Note that we are not using SSL because Dovecot is only accessible locally within the server. Thank you for any suggestions or comments. Regards Philip

4 10

Sieve vacation not getting enough headers "no known (envelope) recipient address found in message headers"
by Marc Roos 24 Dec '19

24 Dec '19

I am getting these errors[1]. With fairly default setup where sendmail is delivering mail via lmtp. Adding these, do not seem to make a difference. Should I add something to the sendmail configuration? sieve_vacation_dont_check_recipient = no sieve_vacation_use_original_recipient = no [1] discarding vacation response for implicitly delivered message; no known (envelope) recipient address found in message headers

1 0

Trouble using reverse dsync backup (log in successful but almost nothing happens)
by Gerben Wierda 23 Dec '19

23 Dec '19

I am migrating an old dovecot 2.2.30 (macOS High SIerra, macO S Server) to a new server with dovecot 2.3.7 (macOS Mojave, macports). To get the data over, I’m trying to do a reverse backup with doveadm between an old and a new mail server, but failing to do so. I’m trying (from the new server, the old server is 192.168.2.67): doveadm -Dv \ -o imapc_host=192.168.2.67 \ -o imapc_user=gerben \ -o imapc_password=’[snip]' \ -o imapc_features='rfc822.size fetch-headers’ \ -o mail_prefetch_count=20 \ -o mail_fsync=never \ -o imapc_ssl=starttls \ -o imapc_ssl_verify=no \ backup -R -u gerben imapc: It seems to start to work: dsync(gerben): Debug: imapc(192.168.2.67:143): Created new connection dsync(gerben): Debug: imapc(192.168.2.67:143): Looking up IP address (reconnect_ok=true, last_connect=1577059834) dsync(gerben): Debug: imapc(192.168.2.67:143): Connecting to 192.168.2.67:143 dsync(gerben): Info: imapc(192.168.2.67:143): Connected to 192.168.2.67:143 (local 192.168.2.66:50804) dsync(gerben): Debug: imapc(192.168.2.67:143): Server capabilities: IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED XAPPLEPUSHSERVICE dsync(gerben): Debug: imapc(192.168.2.67:143): Starting SSL handshake dsync(gerben): Debug: imapc(192.168.2.67:143): SSL handshake successful, ignoring invalid certificate: SSL certificate doesn't match expected host name 192.168.2.67: No match to 2 SubjectAltNames dsync(gerben): Debug: imapc(192.168.2.67:143): Server capabilities: IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE XAPPLEPUSHSERVICE AUTH=CRAM-MD5 AUTH=PLAIN AUTH=LOGIN AUTH=DIGEST-MD5 AUTH=GSSAPI dsync(gerben): Debug: imapc(192.168.2.67:143): Authenticating as gerben dsync(gerben): Debug: imapc(192.168.2.67:143): Server capabilities: IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS BINARY MOVE XAPPLEPUSHSERVICE COMPRESS=DEFLATE QUOTA ACL RIGHTS=texk dsync(gerben): Debug: imapc(192.168.2.67:143): Authenticated successfully dsync(gerben): Debug: imapc: root=, index=, indexpvt=, control=, inbox=, alt= dsync(gerben): Debug: fts: Indexes disabled for namespace '' dsync(gerben): Debug: brain S: Namespace has location imapc: dsync(gerben): Debug: brain M: Local mailbox tree: INBOX guid=184a4c066b219a5dd73700009e3b11ac uid_validity=1570382187 uid_next=18 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Local mailbox tree: INBOX guid=c92f64f79f0d1ed01e6d5b314f04886c uid_validity=1232523592 uid_next=482711 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Local mailbox tree: Notspam_train guid=e0cc8c076b219a5dd73700009e3b11ac uid_validity=1570382188 uid_next=10 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old guid=c71fb29dcfd52e98ffb476033482311a uid_validity=1246525241 uid_next=1 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Local mailbox tree: Sent guid=e8c3b0076b219a5dd73700009e3b11ac uid_validity=1570382189 uid_next=17 subs=yes last_change=0 last_subs=1570382187 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old/Werk guid=493c1b0ff8829799ae854dcdd35bdc49 uid_validity=1246525654 uid_next=1 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Local mailbox tree: Spam_train guid=7076d5076b219a5dd73700009e3b11ac uid_validity=1570382190 uid_next=3719 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old/Werk/UitNFIMailboxen guid=1da8c05ea358b80ee1c2f3a01cc7f2cc uid_validity=1232523595 uid_next=118 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Local mailbox tree: Trash guid=4810f5076b219a5dd73700009e3b11ac uid_validity=1570382191 uid_next=3 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old/Werk/RvdR guid=44c6bc132d8b2818930a6bcf0d2a5706 uid_validity=1232523595 uid_next=349 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Local mailbox tree: Junk guid=f8a063086b219a5dd73700009e3b11ac uid_validity=1570382194 uid_next=1 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old/Werk/Nieuwe Baan guid=75a5c26e35145b08ff594eb249867d0e uid_validity=1232523595 uid_next=380 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Local mailbox tree: Subfolder guid=d8d293340d2c9a5d1d3a00009e3b11ac uid_validity=1570382195 uid_next=1 subs=yes last_change=0 last_subs=1570384909 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old/Werk/NFI guid=3d3c4682642c7ccb58523e0726a0ecff uid_validity=1232523595 uid_next=289 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Local mailbox tree: Subfolder/SUbSubFolder guid=08fb2d1a402c9a5d1d3a00009e3b11ac uid_validity=1570382196 uid_next=1 subs=yes last_change=0 last_subs=1570384960 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old/Projects guid=7843f3ba3f3bfb3c4c965c1bd59b219a uid_validity=1246525385 uid_next=1 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Local mailbox tree: Archive guid=d89d4d148903005e6b5501009e3b11ac uid_validity=1570382197 uid_next=1 subs=yes last_change=0 last_subs=1570382187 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old/Projects/TeX guid=2063d233e1533d17e6910c2d1c3d802c uid_validity=1232523594 uid_next=1 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Local mailbox tree: Drafts guid=60cd72148903005e6b5501009e3b11ac uid_validity=1570382198 uid_next=1 subs=yes last_change=0 last_subs=1570382187 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old/Projects/TeX/Word Hell guid=bbd58ddde1f98e962507f8868f2b8372 uid_validity=1232523594 uid_next=123 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old/Projects/TeX/TUG2003 guid=af8b9bd0abed0f24ff41acd3e0f6cfcf uid_validity=1232523594 uid_next=202 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old/Projects/TeX/TUG ADC guid=2c828ce4f978e96b8199cd3364cf831a uid_validity=1232523594 uid_next=127 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: INBOX guid=c92f64f79f0d1ed01e6d5b314f04886c uid_validity=1232523592 uid_next=482711 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old guid=c71fb29dcfd52e98ffb476033482311a uid_validity=1246525241 uid_next=1 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old/Werk guid=493c1b0ff8829799ae854dcdd35bdc49 uid_validity=1246525654 uid_next=1 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old/Werk/UitNFIMailboxen guid=1da8c05ea358b80ee1c2f3a01cc7f2cc uid_validity=1232523595 uid_next=118 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old/Werk/RvdR guid=44c6bc132d8b2818930a6bcf0d2a5706 uid_validity=1232523595 uid_next=349 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old/Werk/Nieuwe Baan guid=75a5c26e35145b08ff594eb249867d0e uid_validity=1232523595 uid_next=380 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old/Werk/NFI guid=3d3c4682642c7ccb58523e0726a0ecff uid_validity=1232523595 uid_next=289 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old/Projects guid=7843f3ba3f3bfb3c4c965c1bd59b219a uid_validity=1246525385 uid_next=1 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old/Projects/TeX guid=2063d233e1533d17e6910c2d1c3d802c uid_validity=1232523594 uid_next=1 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old/Projects/TeX/Word Hell guid=bbd58ddde1f98e962507f8868f2b8372 uid_validity=1232523594 uid_next=123 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old/Projects/TeX/TUG2003 guid=af8b9bd0abed0f24ff41acd3e0f6cfcf uid_validity=1232523594 uid_next=202 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old/Projects/TeX/TUG ADC guid=2c828ce4f978e96b8199cd3364cf831a uid_validity=1232523594 uid_next=127 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Local mailbox tree: zzz-Old/Projects/TeX/TUG guid=0ff5d314b54457b60c266634bca9898a uid_validity=1232523594 uid_next=242 subs=yes last_change=0 last_subs=0 dsync(gerben): Debug: brain M: Remote mailbox tree: zzz-Old/Projects/TeX/TUG guid=0ff5d314b54457b60c266634bca9898a uid_validity=1232523594 uid_next=242 subs=yes last_change=0 last_subs=0 etc. Then, at some point, it changes to: dsync(gerben): Debug: brain M: Mailbox AAA Superjunk: local=00000000000000000000000000000000/0/0, remote=3232b6d3762f0d825fa9c7a1499b292f/0/1: mailbox not selectable yet dsync(gerben): Debug: brain M: Mailbox APG: local=00000000000000000000000000000000/0/0, remote=d857f802643888ecbec4214ad6b7717e/0/1: mailbox not selectable yet dsync(gerben): Debug: brain M: Mailbox Administrator: local=00000000000000000000000000000000/0/0, remote=8be9e36e5e0d2a6a87de584aaca0193f/0/1: mailbox not selectable yet dsync(gerben): Debug: brain M: Mailbox Apple: local=00000000000000000000000000000000/0/0, remote=e85a0aa21c23f5abd2975a89b6820d63/0/1: mailbox not selectable yet dsync(gerben): Debug: brain M: Mailbox Apple Mail To Do: local=00000000000000000000000000000000/0/0, remote=6275568b3221fc326872b07eefccd0b2/0/1: mailbox not selectable yet dsync(gerben): Debug: brain M: Mailbox Archive: local=d89d4d148903005e6b5501009e3b11ac/0/1, remote=51a58e1d1d5c491aac71488647b20224/0/1: GUIDs conflict - will be merged later dsync(gerben): Debug: brain M: Mailbox Bounces: local=00000000000000000000000000000000/0/0, remote=3479a3b099333fa68dd4b912625af777/0/1: mailbox not selectable yet dsync(gerben): Debug: brain M: Mailbox Calendar Events: local=00000000000000000000000000000000/0/0, remote=498953ab9976b9c77b62da8cb4dd790a/0/1: mailbox not selectable yet dsync(gerben): Debug: brain M: Mailbox DMARC: local=00000000000000000000000000000000/0/0, remote=decbde7a60591d2b65d074f75f07845f/0/1: mailbox not selectable yet with lots of 'mailbox not selectable yet' After I see all the remote (old server) mailboxes being mentioned such, then I see dsync(gerben): Debug: brain M: Deleting mailbox 'Archive' (GUID d89d4d148903005e6b5501009e3b11ac): UIDVALIDITY changed (1295434254 -> 1570382197) dsync(gerben): Debug: brain M: Deleting mailbox 'Drafts' (GUID 60cd72148903005e6b5501009e3b11ac): UIDVALIDITY changed (1232523592 -> 1570382198) dsync(gerben): Debug: brain M: Deleting mailbox 'INBOX' (GUID 184a4c066b219a5dd73700009e3b11ac): UIDVALIDITY changed (1232523592 -> 1570382187) dsync(gerben): Debug: brain M: Deleting mailbox 'Junk' (GUID f8a063086b219a5dd73700009e3b11ac): UIDVALIDITY changed (1295433962 -> 1570382194) dsync(gerben): Debug: brain M: Deleting mailbox 'Notspam_train' (GUID e0cc8c076b219a5dd73700009e3b11ac): Mailbox doesn't exist dsync(gerben): Debug: brain M: Deleting mailbox 'Sent' (GUID e8c3b0076b219a5dd73700009e3b11ac): Mailbox doesn't exist dsync(gerben): Debug: brain M: Deleting mailbox 'Spam_train' (GUID 7076d5076b219a5dd73700009e3b11ac): Mailbox doesn't exist dsync(gerben): Debug: brain M: Deleting mailbox 'Subfolder/SUbSubFolder' (GUID 08fb2d1a402c9a5d1d3a00009e3b11ac): Mailbox doesn't exist dsync(gerben): Debug: brain M: Deleting mailbox 'Subfolder' (GUID d8d293340d2c9a5d1d3a00009e3b11ac): Mailbox doesn't exist dsync(gerben): Debug: brain M: Deleting mailbox 'Trash' (GUID 4810f5076b219a5dd73700009e3b11ac): Mailbox doesn't exist dsync(gerben): Debug: doveadm-sieve: Iterating Sieve mailbox attributes dsync(gerben): Debug: sieve: Pigeonhole version 0.5.7.1 () initializing dsync(gerben): Debug: sieve: include: sieve_global is not set; it is currently not possible to include `:global' scripts. dsync(gerben): Debug: sieve: Sieve imapsieve plugin for Pigeonhole version 0.5.7.1 () loaded dsync(gerben): Debug: sieve: Sieve Extprograms plugin for Pigeonhole version 0.5.7.1 () loaded dsync(gerben): Debug: sieve: file storage: Using active Sieve script path: /private/var/mail/nl.rna.mail/rules/gerben/dovecot.sieve dsync(gerben): Debug: sieve: file storage: Using script storage path: /private/var/mail/nl.rna.mail/rules/gerben/gerben dsync(gerben): Debug: sieve: file storage: Using permissions from /private/var/mail/nl.rna.mail/rules/gerben/gerben: mode=0700 gid=-1 dsync(gerben): Debug: sieve: file storage: Relative path to sieve storage in active link: gerben/ dsync(gerben): Debug: sieve: file storage: sync: Synchronization active dsync(gerben): Debug: sieve: file storage: quota: Storage limit: 52428800 bytes dsync(gerben): Error: Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted. dsync(gerben): Debug: brain S: Remote mailbox tree: INBOX guid=184a4c066b219a5dd73700009e3b11ac uid_validity=1570382187 uid_next=18 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Remote mailbox tree: Notspam_train guid=e0cc8c076b219a5dd73700009e3b11ac uid_validity=1570382188 uid_next=10 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Remote mailbox tree: Sent guid=e8c3b0076b219a5dd73700009e3b11ac uid_validity=1570382189 uid_next=17 subs=yes last_change=0 last_subs=1570382187 dsync(gerben): Debug: brain S: Remote mailbox tree: Spam_train guid=7076d5076b219a5dd73700009e3b11ac uid_validity=1570382190 uid_next=3719 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Remote mailbox tree: Trash guid=4810f5076b219a5dd73700009e3b11ac uid_validity=1570382191 uid_next=3 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Remote mailbox tree: Junk guid=f8a063086b219a5dd73700009e3b11ac uid_validity=1570382194 uid_next=1 subs=no last_change=0 last_subs=0 dsync(gerben): Debug: brain S: Remote mailbox tree: Subfolder guid=d8d293340d2c9a5d1d3a00009e3b11ac uid_validity=1570382195 uid_next=1 subs=yes last_change=0 last_subs=1570384909 dsync(gerben): Debug: brain S: Remote mailbox tree: Subfolder/SUbSubFolder guid=08fb2d1a402c9a5d1d3a00009e3b11ac uid_validity=1570382196 uid_next=1 subs=yes last_change=0 last_subs=1570384960 dsync(gerben): Debug: brain S: Remote mailbox tree: Archive guid=d89d4d148903005e6b5501009e3b11ac uid_validity=1570382197 uid_next=1 subs=yes last_change=0 last_subs=1570382187 dsync(gerben): Debug: brain S: Remote mailbox tree: Drafts guid=60cd72148903005e6b5501009e3b11ac uid_validity=1570382198 uid_next=1 subs=yes last_change=0 last_subs=1570382187 dsync(gerben): Debug: imapc(192.168.2.67:143): Disconnected But nothing has been copied over and while it states it has deleted local mailboxes (such as Subfolder/SUbSubFolder), they are still there. In other words: nothing happens. Well, not quite. The first time I ran this, local directory /var/mail/nl.rna.mail/rules/gerben/gerben/tmp was created. Can anyone see here what is going wrong? Gerben Wierda Chess and the Art of Enterprise Architecture <http://enterprisechess.com/> Mastering ArchiMate <http://masteringarchimate.com/> Architecture for Real Enterprises <https://www.infoworld.com/blog/architecture-for-real-enterprises/> at InfoWorld On Slippery Ice <https://eapj.org/on-slippery-ice/> at EAPJ

1 1

Is it safe to mix dovecot import/backup/sync between dovecot versions 2.2.30.2 and 2.3.7.1?
by Gerben Wierda 22 Dec '19

22 Dec '19

I am migrating a server. The old one uses dovecot 2.2.30.2 and the new one 2.3.7.1. I don’t want to use any tool that might influence flags on messages. I am using Maildir format on both ends and I have a way to let one server access the data on the other (either using an rsync or a direct access). Could I set up a sync between both to create a smooth migration? Gerben Wierda Chess and the Art of Enterprise Architecture <http://enterprisechess.com/> Mastering ArchiMate <http://masteringarchimate.com/> Architecture for Real Enterprises <https://www.infoworld.com/blog/architecture-for-real-enterprises/> at InfoWorld On Slippery Ice <https://eapj.org/on-slippery-ice/> at EAPJ

2 2

dovecot rejecting connects
by Roy 22 Dec '19

22 Dec '19

I am a newbie to dovecot but not postfix and centos I created a new VM with Centos 8 and installed dovecot and postfix. Postfix is working fine but dovecot rejects connections from anything but the local machine. Locally Trying 10.10.100.157... Connected to 10.10.100.157. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN] Dovecot ready. Machine on same subnet. Windows, Linux, etc. Doesn't seem to matter telnet 10.10.100.157 143 Connecting To 10.10.100.157... Could not open connection to the host, on port 143: Connect failed I made sure the iptables are empty so it doesn't seem to be a firewall issue I put some LOG statements in the iptables and it showed the connect packet arriving and the response packet was ICMP type 3 code 13. Any ideas? Roy

3 4

unable to edit wiki 2, here's the edit:
by Steve Newcomb 19 Dec '19

19 Dec '19

In https://wiki.dovecot.org/Migration/Courier , mail_location = maildir:~/Maildir namespace { prefix = INBOX. separator = . inbox = yes } ... is wrong. Apparently it should be ... mail_location = maildir:~/INBOX ...which at least seemed to work, although (by that time?) I wound up re-downloading all mail. Steve Newcomb srn(a)coolheads.com (Unable to edit the wiki page... Mysterious question stood in the way, something like, "How do you prevent spam?" Evidently I don't know the correct answer.

1 0

slow logins over login_trusted_network
by Wojciech Puchar 18 Dec '19

18 Dec '19

i've upgraded dovecot on my server to 2.3.9 works properly but saslauthd that uses it for rimap authentication over 127.0.0.1 works SLOW. You need to wait 15-20 seconds before authentication. only imap login over 127.0.0.1 is slowed down, while over any other IP is quick. i had this problem with older version of dovecot but it was about adding login_trusted_networks = 127.0.0.1 but i already have this and logins is slow. how to disable throttling (or better - put other limits) for 127.0.0.1?

3 5

DSync replication error
by 横山航平 18 Dec '19

18 Dec '19

Please tell me about Dsync replicator. The following are set to enable the "replication" plug-in /etc/dovecot/conf.d/10-mail.conf *---mail_plugins = notify replication---* And I made the following file /etc/dovecot/conf.d/30-dsync.conf *---service replicator { process_min_avail = 1} dsync_remote_cmd = ssh -l%{login} %{host} doveadm dsync-server -u%uplugin { mail_replica = remote:root@"ServerIP"} service aggregator { fifo_listener replication-notify-fifo { user = mail } unix_listener replication-notify { user = mail }} service replicator { unix_listener replicator-doveadm { mode = 0600 }} replication_max_conns = 10 plugin { # When saving a new mail via IMAP or delivering a mail via LDA/LMTP, # wait for the mail to be synced to the remote site. If it doesn't finish # in 2 seconds, return success anyway. # replication_sync_timeout = 2s}---* But replication gives an error --- *Error: open(/var/run/dovecot/replication-notify-fifo) failed: Permission denied* --- Why is this? By the way, When 30-dsync.conf is changed as follows, it works only for one user *---service aggregator { fifo_listener replication-notify-fifo { user = "one user name" } unix_listener replication-notify { user = "one user name" }}---* However, I want to work with all mail users. Please help me what to do. My configuration is as follows *---# 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf# OS: Linux 3.10.0-1062.9.1.el7.x86_64 x86_64 CentOS Linux release 7.7.1908 (Core) # Hostname: test1.s1.iwate-np.co.jp <http://test1.s1.iwate-np.co.jp>dsync_remote_cmd = ssh -l%{login} %{host} doveadm dsync-server -u%ufirst_valid_uid = 1000mail_location = maildir:~/Maildirmail_plugins = notify replicationmbox_write_locks = fcntlnamespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = }passdb { driver = pam}plugin { mail_replica = remote:root@192.168.4.2 <remote%3Aroot(a)192.168.4.2>}service aggregator { fifo_listener replication-notify-fifo { user = mail } unix_listener replication-notify { user = mail }}service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 }}ssl = requiredssl_cert = </etc/pki/dovecot/certs/dovecot.pemssl_key = # hidden, use -P to show ituserdb { driver = passwd}---*

2 2

Local lmtp proxy on backend server
by Marc Roos 17 Dec '19

17 Dec '19

I receive a local mail when I do a 'mail test' on a backend svr1 with this[0] configuration. However when I just add only one configuration change 'lmtp_proxy = yes' I am getting these errors[1]. I would expect this email to still be delivered locally, should this be working or do I misunderstand the lmtp proxy functionality? [0] passdb { args = auth_verbose = default default_fields = proxy=y host=svr1 deny = no driver = pam [1] Dec 15 23:28:48 svr1 dovecot: lmtp(9270): Debug: none: root=, index=, indexpvt=, control=, inbox=, alt= Dec 15 23:28:48 svr1 dovecot: lmtp(9270): Connect from local Dec 15 23:28:48 svr1 dovecot: auth: Debug: master in: PASS#0111#011test#011service=lmtp Dec 15 23:28:48 svr1 dovecot: auth: Debug: pam(test): passdb doesn't support credential lookups Dec 15 23:28:48 svr1 dovecot: auth: Debug: passdb out: FAIL#0111#011reason=Configured passdbs don't support credentials lookups Dec 15 23:28:48 svr1 dovecot: lmtp(9270): Debug: user test: Auth PASS lookup returned temporary failure: reason=Configured passdbs don't support credentials lookups Dec 15 23:28:48 svr1 dovecot: lmtp(9270): Debug: auth PASS input: reason=Configured passdbs don't support credentials lookups dovecot-pigeonhole-2.2.36-3.el7_7.1.x86_64 dovecot-2.2.36-3.el7_7.1.x86_64

2 10

Re: Shared namespace is empty after migration to new Dovecot installation
by Peter Reinhold 17 Dec '19

17 Dec '19

On 2019-12-09 09:42, Aki Tuomi wrote: >> That I can, here (anonymized where relevant) >> > > Config looks fine. Have you tried > > 'A1 SELECT Shared/user(a)sharer.dk'? Yields this, which is the same I got when trying to debug using doveadm acl, it seems like the shared mailboxes aren't placed in the shared namespace at all. A1 SELECT Shared/user(a)sharer.dk A1 NO Mailbox doesn't exist: Shared/user(a)sharer.dk (0.006 + 0.000 + 0.005 secs). -- Peter Reinhold

2 5

Gmail and POP3
by Yannick SIEGLER 17 Dec '19

17 Dec '19

Hi everyone, I'm new to this ML. I have some issue with GMail import settings... I run a dovecot server (2.3.4.1) on Debian10 and I try to connect to my accounts from GMail. It's work fine from thunderbird in pop3,pop3s, imap, imaps... Submission work too... But it won't work on GMail except if I set ssl=yes and disable_plaintext_auth = no... Then GMail connect without SSL or TLS... And in plaintext.... Very unsecure... I can send mail with submission from GMail and ssl=require, that's ok. If I try to connect with SSL activated I've got : pop3-login: Disconnected: Too many bad commands And If I try to connect on port 995 with SSL GMail say that I have some SSL error, and the log says : auth: Debug: auth client connected (pid=21831) pop3-login: Debug: SSL: where=0x10, ret=1: before SSL initialization pop3-login: Debug: SSL: where=0x2001, ret=1: before SSL initialization pop3-login: Debug: SSL: where=0x2002, ret=-1: before SSL initialization pop3-login: Debug: SSL: where=0x2001, ret=1: before SSL initialization pop3-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS read client hello pop3-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS write server hello pop3-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS write change cipher spec pop3-login: Debug: SSL: where=0x2001, ret=1: TLSv1.3 write encrypted extensions pop3-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS write certificate pop3-login: Debug: SSL: where=0x2001, ret=1: TLSv1.3 write server certificate verify pop3-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS write finished pop3-login: Debug: SSL: where=0x2001, ret=1: TLSv1.3 early data pop3-login: Debug: SSL: where=0x2002, ret=-1: TLSv1.3 early data pop3-login: Debug: SSL: where=0x2002, ret=-1: TLSv1.3 early data pop3-login: Debug: SSL: where=0x2002, ret=-1: TLSv1.3 early data pop3-login: Debug: SSL: where=0x2002, ret=-1: TLSv1.3 early data pop3-login: Debug: SSL: where=0x2001, ret=1: TLSv1.3 early data pop3-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS read finished pop3-login: Debug: SSL: where=0x20, ret=1: SSLv3/TLS write session ticket pop3-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS write session ticket pop3-login: Debug: SSL: where=0x2001, ret=1: SSLv3/TLS write session ticket pop3-login: Debug: SSL: where=0x2002, ret=1: SSL negotiation finished successfully pop3-login: Debug: SSL error: Connection closed But as I say, all is working fine from Thunderbird... For the SSL problem this is maybe because GMail doesn't like this configuration in debian for openssl ? [system_default_sect] MinProtocol = TLSv1.2 CipherString = DEFAULT@SECLEVEL=2 Maybe should I try to set MinProtocol = None CipherString = DEFAULT But this make a lot of security change on my opinion... Do someone have any tips or suggestion about my problem ? Thx Yannick

2 2

CentOS x64 compilation fails.
by Mart Pirita 16 Dec '19

16 Dec '19

Hello. I have problems to compile Dovecot2.2.13 with rpmbuild using options: ./configure \ --prefix=/usr \ --with-ssl=openssl \ --with-ssldir=/etc/ssl \ --sysconfdir=/etc \ --without-vpopmail \ --with-pam \ --without-bsdauth \ --without-sql \ --without-nss \ --without-ldap \ --without-pgsql \ --without-mysql \ --without-sqlite \ --with-rundir=/var/run/dovecot \ --without-deliver \ --without-gssapi make Using CentOS 5.11, option - rpmbuild -ba dovecot2.2.spec fails with error: /bin/mkdir -p '/var/tmp/dovecot-2.2.13-mp-root/usr/lib64/dovecot' /bin/sh ../../libtool --mode=install /usr/bin/install -c libdovecot-storage.la '/var/tmp/dovecot-2.2.13-mp-root/usr/lib64/dovecot' libtool: install: error: cannot install `libdovecot-storage.la' to a directory not ending in /usr/lib/dovecot make[4]: *** [install-pkglibLTLIBRARIES] Error 1 make[4]: Leaving directory `/usr/src/redhat/BUILD/dovecot-2.2.13/src/lib-storage' make[3]: *** [install-am] Error 2 make[3]: Leaving directory `/usr/src/redhat/BUILD/dovecot-2.2.13/src/lib-storage' make[2]: *** [install-recursive] Error 1 make[2]: Leaving directory `/usr/src/redhat/BUILD/dovecot-2.2.13/src/lib-storage' make[1]: *** [install-recursive] Error 1 make[1]: Leaving directory `/usr/src/redhat/BUILD/dovecot-2.2.13/src' make: *** [install-recursive] Error 1 error: Bad exit status from /var/tmp/rpm-tmp.14076 (%install) RPM build errors: Bad exit status from /var/tmp/rpm-tmp.14076 (%install) But using CentOS 5.11with option- rpmbuild --target=i686 -ba dovecot2.2.spec works fine. However, using CentOS 6.5, with option - rpmbuild -ba dovecot2.2.spec fails with error: /bin/mkdir -p '/root/rpmbuild/BUILDROOT/dovecot-2.2.13-mp.x86_64/usr/lib64/dovecot' /bin/sh ../../libtool --mode=install /usr/bin/install -c libdovecot-storage.la '/root/rpmbuild/BUILDROOT/dovecot-2.2.13-mp.x86_64/usr/lib64/dovecot' libtool: install: error: cannot install `libdovecot-storage.la' to a directory not ending in /usr/lib/dovecot make[4]: *** [install-pkglibLTLIBRARIES] Error 1 make[4]: Leaving directory `/root/rpmbuild/BUILD/dovecot-2.2.13/src/lib-storage' make[3]: *** [install-am] Error 2 make[3]: Leaving directory `/root/rpmbuild/BUILD/dovecot-2.2.13/src/lib-storage' make[2]: *** [install-recursive] Error 1 make[2]: Leaving directory `/root/rpmbuild/BUILD/dovecot-2.2.13/src/lib-storage' make[1]: *** [install-recursive] Error 1 make[1]: Leaving directory `/root/rpmbuild/BUILD/dovecot-2.2.13/src' make: *** [install-recursive] Error 1 error: Bad exit status from /var/tmp/rpm-tmp.HP3meN (%install) RPM build errors: Bad exit status from /var/tmp/rpm-tmp.HP3meN (%install) But when CentOS 5.11with option rpmbuild --target=i686 -ba dovecot2.2.spec suceeds, CentOS 6.5still fails: cpio: dovecot-2.2.13/src/lib-compression/abspath.c: Cannot stat: No such file or directory cpio: dovecot-2.2.13/src/lib-compression/compat.h: Cannot stat: No such file or directory cpio: dovecot-2.2.13/src/lib-compression/lib.h: Cannot stat: No such file or directory 18096 blocks + /usr/lib/rpm/check-buildroot /root/rpmbuild/BUILDROOT/dovecot-2.2.13-mp.i386/usr/lib/dovecot/dovecot-config:LIBDOVECOT='-L/root/rpmbuild/BUILDROOT/dovecot-2.2.13-mp.i386/usr/lib/dovecot -ldovecot' /root/rpmbuild/BUILDROOT/dovecot-2.2.13-mp.i386/usr/lib/dovecot/dovecot-config:LIBDOVECOT_INCLUDE=-I/root/rpmbuild/BUILDROOT/dovecot-2.2.13-mp.i386/usr/include/dovecot Found '/root/rpmbuild/BUILDROOT/dovecot-2.2.13-mp.i386' in installed files; aborting error: Bad exit status from /var/tmp/rpm-tmp.69mGY0 (%install) RPM build errors: Bad exit status from /var/tmp/rpm-tmp.69mGY0 (%install) How to fix these errors? -- Mart

5 8

Suddenly sieve no longer working
by Heiko W. Rupp 16 Dec '19

16 Dec '19

Hey, I have a successful setup with dovecot and sieve and since a few days sieve is all of a sudden no longer working. I am on OSX and my mta is an older version of postfix (apple supplied). Has anyone gone through that and has some hints on how to best debug (and fix) that? Thanks a lot Heiko -- hwr(a)pilhuhn.de m:0179/207 4919 b:http://pilhuhn.blogspot.com

2 2

Panic: file smtp-client-connection.c: line 1212 (smtp_client_connection_established): assertion failed: (!conn->connect_succeeded)
by Hativ 16 Dec '19

16 Dec '19

Hello, after migrating from self-compiled Dovecot 2.3.3 to Dovecot 2.3.8 from the repository (Ubuntu 18.04 LTS "Bionic" packages) I have issues with the submission service. If I send an email, it will not be forwarded and I get the following error message: Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Panic: file smtp-client-connection.c: line 1212 (smtp_client_connection_established): assertion failed: (!conn->connect_succeeded) Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xe7f7e) [0x7f64b1f76f7e] -> /usr/lib/dovecot/libdovecot.so.0(+0xe8021) [0x7f64b1f77021] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f64b1ecfaf4] -> /usr/lib/dovecot/libdovecot.so.0(+0x50ec8) [0x7f64b1edfec8] -> /usr/lib/dovecot/libdovecot.so.0(+0x51078) [0x7f64b1ee0078] -> /usr/lib/dovecot/libdovecot.so.0(+0x541f4) [0x7f64b1ee31f4] -> /usr/lib/dovecot/libdovecot.so.0(smtp_client_command_input_reply+0x1f8) [0x7f64b1edb738] -> /usr/lib/dovecot/libdovecot.so.0(+0x54a93) [0x7f64b1ee3a93] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x6f) [0x7f64b1f909af] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x13c) [0x7f64b1f9237c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x4c) [0x7f64b1f90abc] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f64b1f90cd8] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f64b1eff053] -> dovecot/submission [hativ(a)example.com fec0:810c:c0c0:8a0:342a:8478:1ee:4f8e GREETING](main+0x3d1) [0x55dcc748fec1] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f64b1abfb97] -> dovecot/submission [hativ(a)example.com fec0:810c:c0c0:8a0:342a:8478:1ee:4f8e GREETING](_start+0x2a) [0x55dcc749009a] Does somebody has any idea? The problem has been taking me months, now I want to finally update to the current version. Full debug log: Oct 11 09:29:00 srv2 dovecot: submission-login: Login: user=< hativ(a)example.com>, method=PLAIN, rip=fec0:810c:c0c0:8a0:342a:8478:1ee:4f8e, lip=fec0:4f8:1c0c:8099::1, mpid=15819, TLS, session=<XFnLeJ2U0rgqAoEMwMAIoDQqhHgB7k+O> Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Loading modules from directory: /usr/lib/dovecot/modules Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Module loaded: /usr/lib/dovecot/modules/lib01_acl_plugin.so Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Module loaded: /usr/lib/dovecot/modules/lib10_mail_crypt_plugin.so Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Module loaded: /usr/lib/dovecot/modules/lib10_quota_plugin.so Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Module loaded: /usr/lib/dovecot/modules/lib15_notify_plugin.so Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Module loaded: /usr/lib/dovecot/modules/lib20_mail_log_plugin.so Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Module loaded: /usr/lib/dovecot/modules/lib20_quota_clone_plugin.so Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Module loaded: /usr/lib/dovecot/modules/lib20_replication_plugin.so Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Added userdb setting: plugin/mail_crypt_private_password=<hidden> Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Added userdb setting: plugin/mail_crypt_save_version=0 Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Added userdb setting: plugin/quota_rule=*:bytes=0 Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Effective uid=998, gid=998, home=/srv/mail/example.com/hativ Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Quota root: name= backend=count args= Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Quota rule: root= mailbox=* bytes=0 messages=0 Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Quota grace: root= bytes=0 (10%) Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Namespace INBOX: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=sdbox:~/ Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: fs: root=/srv/mail/example.com/hativ, index=, indexpvt=, control=, inbox=, alt= Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: acl: initializing backend with data: vfile Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: acl: acl username = hativ(a)example.com Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: acl: owner = 1 Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: acl vfile: Global ACLs disabled Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: Namespace Shared: type=shared, prefix=Shared/%u/, sep=, inbox=no, hidden=no, list=children, subscriptions=yes location=sdbox:%h/:INDEXPVT=~/shares/%u Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt= Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: acl: initializing backend with data: vfile Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: acl: acl username = hativ(a)example.com Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: acl: owner = 0 Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: acl vfile: Global ACLs disabled Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: quota: quota_over_flag check: quota_over_script unset - skipping Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-server: conn [fec0:810c:c0c0:8a0:342a:8478:1ee:4f8e]:47314 [1]: Server accepted connection (fd=7) Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-server: conn [fec0:810c:c0c0:8a0:342a:8478:1ee:4f8e]:47314 [1]: Connection created Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 [1]: Connection created Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 [1]: Looking up IP address Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 [1]: DNS lookup successful; got 2 IPs Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-server: conn [fec0:810c:c0c0:8a0:342a:8478:1ee:4f8e]:47314 [1]: Sent: 235 2.7.0 Logged in. Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 [1]: Connecting to 10.46.163.91:25 Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: Connecting Oct 11 09:29:00 srv2 postfix/smtpd[15229]: connect from srv2[10.46.163.91] Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: Waiting for connect (fd=8) to finish for max 0 msecs Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: Client connected (fd=8) Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: Connected to server (from 10.46.163.91:60230) Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: Received greeting from server: 220 mta2.example.com ESMTP Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: Sending EHLO handshake Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: command EHLO: Submitted with priority Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: command EHLO: Sent: EHLO mda1-2.example.com Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: command EHLO: Got reply (1/1): 250 mta2.example.com PIPELINING SIZE 51200000 ETRN STARTTLS AUTH DIGEST-MD5 CRAM-MD5 NTLM XCLIENT NAME ADDR PROTO HELO REVERSE_NAME PORT LOGIN DESTADDR DESTPORT ENHANCEDSTATUSCODES 8BITMIME SMTPUTF8 (1 commands pending, 0 commands queued) Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: Received handshake reply Oct 11 09:29:00 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: Received server capabilities Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: Starting TLS Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: command STARTTLS: Submitted with priority Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: command EHLO: Destroy (0 commands pending, 1 commands queued) Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: command STARTTLS: Sent: STARTTLS Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: command STARTTLS: Got reply (1/1): 220 2.0.0 Ready to start TLS (1 commands pending, 0 commands queued) Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: Received STARTTLS reply: 220 2.0.0 Ready to start TLS Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: Starting SSL handshake Oct 11 09:29:01 srv2 postfix/smtpd[15229]: Anonymous TLS connection established from srv2[10.46.163.91]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Debug: smtp-client: conn mta2.example.com:25 (10.46.163.91:25) [1]: SSL handshake successful Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Panic: file smtp-client-connection.c: line 1212 (smtp_client_connection_established): assertion failed: (!conn->connect_succeeded) Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xe7f7e) [0x7f64b1f76f7e] -> /usr/lib/dovecot/libdovecot.so.0(+0xe8021) [0x7f64b1f77021] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f64b1ecfaf4] -> /usr/lib/dovecot/libdovecot.so.0(+0x50ec8) [0x7f64b1edfec8] -> /usr/lib/dovecot/libdovecot.so.0(+0x51078) [0x7f64b1ee0078] -> /usr/lib/dovecot/libdovecot.so.0(+0x541f4) [0x7f64b1ee31f4] -> /usr/lib/dovecot/libdovecot.so.0(smtp_client_command_input_reply+0x1f8) [0x7f64b1edb738] -> /usr/lib/dovecot/libdovecot.so.0(+0x54a93) [0x7f64b1ee3a93] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x6f) [0x7f64b1f909af] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x13c) [0x7f64b1f9237c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x4c) [0x7f64b1f90abc] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f64b1f90cd8] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f64b1eff053] -> dovecot/submission [hativ(a)example.com fec0:810c:c0c0:8a0:342a:8478:1ee:4f8e GREETING](main+0x3d1) [0x55dcc748fec1] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f64b1abfb97] -> dovecot/submission [hativ(a)example.com fec0:810c:c0c0:8a0:342a:8478:1ee:4f8e GREETING](_start+0x2a) [0x55dcc749009a] Oct 11 09:29:01 srv2 postfix/smtpd[15229]: lost connection after STARTTLS from srv2[10.46.163.91] Oct 11 09:29:01 srv2 postfix/smtpd[15229]: disconnect from srv2[10.46.163.91] ehlo=1 starttls=1 commands=2 Oct 11 09:29:01 srv2 dovecot: submission(hativ(a)example.com)<15819><XFnL eJ2U0rgqAoEMwMAIoDQqhHgB7k+O>: Fatal: master: service(submission): child 15819 killed with signal 6 (core dumped) Best regards Hativ

3 4

FTS indexer-worker Panic
by Yarema 16 Dec '19

16 Dec '19

Set up fts_xapian over the weekend and re-indexed. https://github.com/grosjo/fts-xapian Tried to search my INBOX and got: > dovecot: indexer-worker: Panic: file charset-iconv.c: line 83 (charset_to_utf8_try): assertion failed: (srcleft <= CHARSET_MAX_PENDING_BUF_SIZE) What could I possibly have lurking in my INBOX to cause that ?? -- Yarema

2 1

dovecot full text search
by Wojciech Puchar 16 Dec '19

16 Dec '19

what FTP module should i use instead of squat that is probably no longer supported or no longer at all? i want to upgrade my dovecot installation. it currently uses squat but i found it often crashes on FTS on large mailboxes. i found "xapian" addon for dovecot but while it works excellent AFTER database is created, i found it need like 20 or so minutes to index less than 10GB of mails and while doing this - generate many tens of megabytes/s constant write traffic on it's database files. Excellent way of killing SSD. something must be broken. my config is plugin { plugin = fts fts_xapian fts = xapian fts_xapian = partial=2 full=20 verbose=0 fts_autoindex = yes fts_enforced = yes # fts_autoindex_exclude = \Junk # fts_autoindex_exclude2 = \Trash } any ideas?

3 3

Bug: indexer-worker segfaults with fts_xapian 1.2.5
by Martynas Bendorius 16 Dec '19

16 Dec '19

Core was generated by `dovecot/indexer-worker'. Program terminated with signal 11, Segmentation fault. #0 0x00007f30f7ad056d in __exchange_and_add (__val=-1, __mem=0xfffffffffffffff8) at /usr/src/debug/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/ext/atomicity.h:49 49 { return __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); } (gdb) bt full #0 0x00007f30f7ad056d in __exchange_and_add (__val=-1, __mem=0xfffffffffffffff8) at /usr/src/debug/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/ext/atomicity.h:49 No locals. #1 __exchange_and_add_dispatch (__val=-1, __mem=0xfffffffffffffff8) at /usr/src/debug/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/ext/atomicity.h:82 No locals. #2 std::string::_Rep::_M_dispose (this=0xffffffffffffffe8, __a=...) at /usr/src/debug/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/bits/basic_string.h:246 No locals. #3 0x00007f30f7b3407e in _M_dispose (__a=..., this=<optimized out>) at /usr/src/debug/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/bits/basic_string.tcc:254 No locals. #4 std::string::assign (this=this@entry=0x55c7b93e0168, __str="return-path") at /usr/src/debug/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/bits/basic_string.tcc:250 __a = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>} #5 0x00007f30fa8776ce in operator= (__str="return-path", this=0x55c7b93e0168) at /usr/include/c++/4.8.2/bits/basic_string.h:547 No locals. #6 fts_backend_xapian_update_set_build_key (_ctx=0x55c7b93e0140, key=0x7ffc1ba2c380) at fts-backend-xapian.cpp:303 ctx = 0x55c7b93e0140 i = <optimized out> f2 = "return-path" backend = <optimized out> field = 0x55c7b943fb5f "RETURN-PATH" j = 11 #7 0x00007f30fb0b8cda in fts_backend_update_set_build_key (ctx=0x55c7b93e0140, key=key@entry=0x7ffc1ba2c380) at fts-api.c:174 __func__ = "fts_backend_update_set_build_key" #8 0x00007f30fb0ba243 in fts_build_mail_header (block=0x7ffc1ba2c340, block=0x7ffc1ba2c340, ctx=0x7ffc1ba2c3b0) at fts-build-mail.c:173 hdr = <optimized out> key = {uid = 6006200, type = FTS_BACKEND_BUILD_KEY_HDR, part = 0x55c7b935eed0, hdr_name = 0x55c7b943fb5f "RETURN-PATH", body_content_type = 0x0, body_content_disposition = 0x0} ret = <optimized out> #9 fts_build_mail_real (may_need_retry_r=0x7ffc1ba2c2f3, retriable_err_msg_r=0x7ffc1ba2c300, mail=0x55c7b93dcff8, update_ctx=0x55c7b93e0140) at fts-build-mail.c:568 block = {part = 0x55c7b935eed0, hdr = 0x55c7b93d7f18, data = 0x55c7b938b8a8 "", size = 0} ret = <optimized out> input = 0x55c7b93d78c0 raw_block = {part = 0x55c7b935eed0, hdr = 0x55c7b93d80b0, data = 0x0, size = 0} skip_body = false ctx = {mail = 0x55c7b93dcff8, update_ctx = 0x55c7b93e0140, content_type = 0x0, content_disposition = 0x0, body_parser = 0x0, word_buf = 0x0, ---Type <return> to continue, or q <return> to quit--- pending_input = 0x0, cur_user_lang = 0x0} prev_part = 0x55c7b935eed0 parser = 0x55c7b93d7b38 decoder = 0x55c7b93d7f00 parts = 0x7ffc1ba2c414 body_part = false body_added = false binary_body = <optimized out> error = 0x5ba5b8 <Address 0x5ba5b8 out of bounds> #10 fts_build_mail (update_ctx=0x55c7b93e0140, mail=mail@entry=0x55c7b93dcff8) at fts-build-mail.c:617 _data_stack_cur_id = 6 attempts = 2 retriable_err_msg = 0x11e900729 <Address 0x11e900729 out of bounds> may_need_retry = false #11 0x00007f30fb0c1102 in fts_mail_index (_mail=0x55c7b93dcff8) at fts-storage.c:550 ft = 0x55c7b9396880 flist = 0x55c7b938b8a8 pmail = 0x55c7b93dcff8 #12 fts_mail_precache (_mail=0x55c7b93dcff8) at fts-storage.c:571 _data_stack_cur_id = 5 mail = 0x55c7b93dcff8 fmail = <optimized out> ft = 0x55c7b9396880 __func__ = "fts_mail_precache" #13 0x00007f30fc1b7d64 in mail_precache (mail=0x55c7b93dcff8) at mail.c:432 _data_stack_cur_id = 4 p = 0x55c7b93dcff8 #14 0x000055c7b8b4c844 in index_mailbox_precache (conn=<optimized out>, box=0x55c7b938ef18) at master-connection.c:102 counter = 0 max = 21569 percentage_sent = 0 storage = <optimized out> status = {messages = 21569, recent = 0, unseen = 0, uidvalidity = 1462447525, uidnext = 6027769, first_unseen_seq = 0, first_recent_uid = 6027758, last_cached_seq = 0, highest_modseq = 0, highest_pvt_modseq = 0, keywords = 0x0, permanent_flags = 0, flags = 0, permanent_keywords = false, allow_new_keywords = false, nonpermanent_modseqs = false, no_modseq_tracking = false, have_guids = true, have_save_guids = true, have_only_guid128 = false} uids = <optimized out> username = 0x55c7b9385988 "msg(a)domain.com" first_uid = 6006200 ---Type <return> to continue, or q <return> to quit--- percentage_str = "\003\000\000" percentage = <optimized out> error = MAIL_ERROR_NONE trans = 0x55c7b9390480 ctx = 0x55c7b93d15f0 last_uid = 6006200 ret = 0 box_vname = 0x55c7b938f280 "INBOX.lfd.SSH login alerts" errstr = <optimized out> search_args = 0x0 mail = 0x55c7b93dcff8 metadata = {guid = '\000' <repeats 15 times>, virtual_size = 0, physical_size = 0, first_save_date = 0, cache_fields = 0x0, precache_fields = (MAIL_FETCH_STREAM_HEADER | MAIL_FETCH_STREAM_BODY | MAIL_FETCH_RECEIVED_DATE | MAIL_FETCH_SAVE_DATE | MAIL_FETCH_PHYSICAL_SIZE | MAIL_FETCH_VIRTUAL_SIZE | MAIL_FETCH_UIDL_BACKEND | MAIL_FETCH_GUID | MAIL_FETCH_POP3_ORDER), backend_ns_prefix = 0x0, backend_ns_type = (unknown: 0)} seq = <optimized out> #15 index_mailbox (user=<optimized out>, user=<optimized out>, what=<optimized out>, max_recent_msgs=<optimized out>, mailbox=<optimized out>, conn=0x55c7b9370df0) at master-connection.c:205 box = 0x55c7b938ef18 status = {messages = 463652304, recent = 32764, unseen = 1, uidvalidity = 0, uidnext = 4225857431, first_unseen_seq = 32560, first_recent_uid = 4226053086, last_cached_seq = 32560, highest_modseq = 94316285707297, highest_pvt_modseq = 94316294200320, keywords = 0x7f30fbe17797 <__x86_return_thunk+5>, permanent_flags = 4226053495, flags = 32560, permanent_keywords = true, allow_new_keywords = true, nonpermanent_modseqs = true, no_modseq_tracking = false, have_guids = true, have_save_guids = false, have_only_guid128 = false} errstr = <optimized out> ret = 0 ns = <optimized out> path = 0x55c7b935e7f8 "/home/username/imap/domain.com/msg/Maildir/.INBOX.lfd.SSH login alerts" error = 21569 sync_flags = <optimized out> #16 master_connection_input_line (line=<optimized out>, conn=0x55c7b9370df0) at master-connection.c:247 str = <optimized out> max_recent_msgs = 0 ret = <optimized out> args = <optimized out> input = {parent_event = 0x0, module = 0x55c7b8b4d05f "mail", service = 0x55c7b8b4d050 "indexer-worker", username = 0x55c7b935d038 "msg(a)domain.com", session_id = 0x0, session_id_prefix = 0x55c7b935d063 "MAYmHNGX9l1rviwA+Lg9Sw", session_create_time = 0, local_ip = {family = 0, u = {ip6 = {__in6_u = { __u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, remote_ip = { family = 0, u = {ip6 = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = { s_addr = 0}}}, local_port = 0, remote_port = 0, userdb_fields = 0x0, flags_override_add = (unknown: 0), flags_override_remove = (unknown: 0), ---Type <return> to continue, or q <return> to quit--- no_userdb_lookup = false, debug = false, conn_secured = false, conn_ssl_secured = false} service_user = 0x55c7b93732e8 user = 0x55c7b9385868 error = 0x0 #17 master_connection_input (conn=0x55c7b9370df0) at master-connection.c:287 _data_stack_cur_id = 3 line = <optimized out> #18 0x00007f30fbed69af in io_loop_call_io (io=0x55c7b9370e30) at ioloop.c:718 ioloop = 0x55c7b9365d70 t_id = 2 __func__ = "io_loop_call_io" #19 0x00007f30fbed8413 in io_loop_handler_run_internal (ioloop=ioloop@entry=0x55c7b9365d70) at ioloop-epoll.c:222 ctx = 0x55c7b9366ea0 list = 0x55c7b9370e90 io = <optimized out> tv = {tv_sec = 2147483, tv_usec = 0} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 call = <optimized out> __func__ = "io_loop_handler_run_internal" #20 0x00007f30fbed6ab9 in io_loop_handler_run (ioloop=ioloop@entry=0x55c7b9365d70) at ioloop.c:770 __func__ = "io_loop_handler_run" #21 0x00007f30fbed6cf8 in io_loop_run (ioloop=0x55c7b9365d70) at ioloop.c:743 __func__ = "io_loop_run" #22 0x00007f30fbe46d83 in master_service_run (service=0x55c7b9365c00, callback=callback@entry=0x55c7b8b4c3e0 <client_connected>) at master-service.c:809 No locals. #23 0x000055c7b8b4c21e in main (argc=1, argv=0x55c7b9365960) at indexer-worker.c:77 storage_service_flags = (MAIL_STORAGE_SERVICE_FLAG_USERDB_LOOKUP | MAIL_STORAGE_SERVICE_FLAG_TEMP_PRIV_DROP | MAIL_STORAGE_SERVICE_FLAG_NO_IDLE_TIMEOUT) c = <optimized out> -- Best regards, Martynas Bendorius

2 1

Dovecot v2.3.9.2 released
by aki.tuomi＠dovecot.fi 15 Dec '19

15 Dec '19

We are pleased to release v2.3.9.2 of Dovecot. Please find it from locations below https://dovecot.org/releases/2.3/dovecot-2.3.9.2.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.9.2.tar.gz.sig Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot --- - Mails with empty From/To headers can also cause crash in push notification drivers. --- Aki Tuomi Open-Xchange oy

2 1

Bug: icu linking issue in fts plugin
by Martynas Bendorius 15 Dec '19

15 Dec '19

FTS plugin seems not to be linking dynamic libraries correctly: [root@server ~]# ldd /usr/lib/dovecot/lib20_fts_plugin.so linux-vdso.so.1 => (0x00007ffd2eb95000) libicui18n.so.64 => not found libicuuc.so.64 => not found libicudata.so.64 => not found libc.so.6 => /lib64/libc.so.6 (0x00007f1cb5566000) /lib64/ld-linux-x86-64.so.2 (0x00007f1cb5b73000) ICU is in custom directory /usr/local/icu, it's not set in ld.so.conf, so, the linker would need to get this added automatically (that's how it's handled in PHP, for example): -Wl,-rpath=/usr/local/icu/lib Thank you! -- Best regards, Martynas Bendorius

1 0

Solr commit and optimize: which user?
by John Gateley 15 Dec '19

15 Dec '19

Hi, I have Solr FTR working with dovecot, and need to do the commit and optimize recommended here: https://wiki.dovecot.org/Plugins/FTS/Solr Should this run as root, or as each mail user. The documentation above implies, but doesn't state, that it is root. The docs here are similar: http://grimore.org/networking/dovecot/full_text_search But the docs here say it has to be done for each user: http://www.unixsamurai.com/dovecot-full-text-search-jetty-solr/ I don't know Solr well enough to answer. Which is correct? Thanks John

2 1

Parsing variables in config files
by Eudald Valcàrcel Lacasa 15 Dec '19

15 Dec '19

Hello, I'm trying to set up a mailbox for a bunch of domains. To do so I'm running some docker containers (I know I can use multidomain set up and I'm doing so, but I need to have some domains on different containers for specific reasons). In order to keep it all clean, I want to use different PostgreSQL databases for each container, and I'm running the container with an environment file containing database parameters, such as: DB_USER DB_HOST DB_NAME I've been trying to pass these parameters to dovecot's configuration, but they don't get parsed and I end up with messages like: dovecot: auth: Error: pgsql(%{env:DB_HOST}): Connect failed to database %{env:DB_NAME} I've tried to pass variables alone, using import_environment = DB_HOST DB_NAME DB_USER, but I'm stuck at the same errors. Is there anything I could do to fix this? Thank you! Eudald

2 2

Doveadm HTTP API and CORS
by Peter Chiochetti 13 Dec '19

13 Dec '19

While toying around with Doveadmin HTTP api I noticed, there is not much hype around it. Let's change that. Doveadmin REST API so to speak provides a web server. When doing /ajax/ requests, modern browsers block that, unless the response comes with a specific CORS header. Here how to work around with a proxy: > # /etc/dovecot/local.conf > doveadm_allowed_commands = fetch > doveadm_api_key = secret > service doveadm { > inet_listener http { > port = 8084 > } > } > # secret64 = echo -n secret | base64 > # /etc/apache/.../some-site.conf > ProxyVia Block > <Location /doveadm/v1> > RequestHeader set Authorization "X-Dovecot-API secret64" > ProxyPass http://localhost:8084/doveadm/v1 retry=0 timeout=5 > ProxyPassReverse http://localhost:8084/doveadm/v1 > </Location> Intranet only this might be good enough, TLS with username/password Basic-Authentication passthrough might be used for better security. Shameless plug: taken from https://gist.github.com/hungerburg/00d582bf1a6bf3c622797bf5e759f75b -- peter

2 1

BUG: panic when using fs:posix as dict for acl_shared_dict
by Marco Giunta 13 Dec '19

13 Dec '19

Hi, I'm using Dovecot 2.2.33.2 on a RHEL 7, new installation. When I use fs:posix as dict for acl_shared_dict, like in Dovecot wiki (https://wiki.dovecot.org/SharedMailboxes/ClusterSetup) doveadm-server crash with error: # doveadm acl set -u USERNAME FOLDER user=DEST_USERNAME lookup read write-seen doveadm(USERNAME): Panic: file dict-fs.c: line 127 (fs_dict_iterate_init): assertion failed: ((flags & DICT_ITERATE_FLAG_RECURSE) == 0) doveadm(USERNAME): Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0x9f3de) [0x7f0e4a4b23de] -> /usr/lib64/dovecot/libdovecot.so.0(default_fatal_handler+0x2a) [0x7f0e4a4b244a] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f0e4a44377c] -> /usr/lib64/dovecot/libdovecot.so.0(+0x31688) [0x7f0e4a444688] -> /usr/lib64/dovecot/libdovecot.so.0(dict_iterate_init_multiple+0x4d) [0x7f0e4a47cadd] -> /usr/lib64/dovecot/libdovecot.so.0(dict_iterate_init+0x29) [0x7f0e4a47cb89] -> /usr/lib64/dovecot/lib01_acl_plugin.so(acl_lookup_dict_rebuild+0x3e1) [0x7f0e49a40371] -> /usr/lib64/dovecot/lib01_acl_plugin.so(acl_backend_vfile_acllist_rebuild+0x488) [0x7f0e49a3dd18] -> /usr/lib64/dovecot/lib01_acl_plugin.so(acl_backend_vfile_object_update+0x3c7) [0x7f0e49a3e867] -> /usr/lib64/dovecot/lib01_acl_plugin.so(acl_mailbox_update_acl+0x68) [0x7f0e49a41e28] -> /usr/lib64/dovecot/doveadm/lib10_doveadm_acl_plugin.so(+0x2c11) [0x7f0e48da1c11] -> /usr/lib64/dovecot/doveadm/lib10_doveadm_acl_plugin.so(+0x3060) [0x7f0e48da2060] -> doveadm(+0x2b41c) [0x556f1280b41c] -> doveadm(+0x2c01a) [0x556f1280c01a] -> doveadm(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x23b) [0x556f1280ce7b] -> doveadm(doveadm_cmd_run_ver2+0x50c) [0x556f1281c73c] -> doveadm(doveadm_cmd_try_run_ver2+0x37) [0x556f1281c7d7] -> doveadm(main+0x1e4) [0x556f127fb944] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f0e4a071c05] -> doveadm(+0x1bd35) [0x556f127fbd35] Aborted Attached coredump and configuration. I'm not a programmer, but seems that assert is raised by 'fs_dict_iterate_init' function inside 'src/lib-dict-extra/dict-fs.c': static struct dict_iterate_context * fs_dict_iterate_init(struct dict *_dict, const char *const *paths, enum dict_iterate_flags flags) { ... /* these flags are not supported for now */ i_assert((flags & DICT_ITERATE_FLAG_RECURSE) == 0); ... because it is called by 'acl_lookup_dict_iterate_read' function in file 'src/plugins/acl/acl-lookup-dict.c' static void acl_lookup_dict_iterate_read(struct acl_lookup_dict_iter *iter) { ... dict_iter = dict_iterate_init(iter->dict->dict, prefix, DICT_ITERATE_FLAG_RECURSE); ... with DICT_ITERATE_FLAG_RECURSE set. Same problem also with Dovecot 2.3.0. Thanks, Marco -- Marco Giunta - ITCS SysAdmin Via Bonomea, 265 34136 - Trieste, Italy Tel: +39-040-3787-503 Fax: +39-040-3787-244

4 6

Is is possible to log TLS client versions
by Götz Reinicke 13 Dec '19

13 Dec '19

Hi, is it possible to log the version of TLS a clients is using to connect to dovecot? I’v not found any switch to do that. Thanks and regards . Götz

2 2

CVE-2019-19722: Critical vulnerability in Dovecot
by Aki Tuomi 13 Dec '19

13 Dec '19

Open-Xchange Security Advisory 2019-12-13 Product: Dovecot IMAP/POP3 Server Vendor: OX Software GmbH Internal reference: DOV-3719 Vulnerability type: NULL Pointer Dereference (CWE-476) Vulnerable version: 2.3.9 Vulnerable component: push notification driver Report confidence: Confirmed Solution status: Fixed by Vendor Fixed version: 2.3.9.1 Researcher credits: Frederik Schwan, Michael Stilkerich Vendor notification: 2019-12-10 Solution date: 2019-12-12 Public disclosure: 2019-12-13 CVE reference: CVE-2019-19722 CVSS: 5.3 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:F/RL:O/RC:C) Vulnerability Details: Mail with group address as sender will cause a signal 11 crash in push notification drivers. Group address as recipient can cause crash in some drivers. Risk: Repeated delivery attempts are made for the problematic mail, causing queueing in MTA. Steps to reproduce: 1. Configure dovecot with push notifications enabled, such as OX push notification driver. This can also be observed with 3rd party plugin XAPS. 2. Send mail a group address as sender Solution: Operators should update to the latest Patch Release.

2 1

Dovecot 2.3.9 - lmtp crashes with Signal 11
by Michael Stilkerich 13 Dec '19

13 Dec '19

Hello, since the upgrade from 2.3.8 to 2.3.9 (using the Ubuntu 18.04 packages from dovecot.org) lmtp crashes for me for some mails. Currently I have three pending mails in my postfix deferred queue since the upgrade a couple of days ago. I did not observe these issues with 2.3.8. The backtrace from one of the coredumps: Reading symbols from /usr/lib/dovecot/lmtp...Reading symbols from /usr/lib/debug/.build-id/f3/3a5089463b1234cbcf90bf10033d1dd5613821.debug...done. done. [New LWP 1554] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `dovecot/lmtp'. Program terminated with signal SIGSEGV, Segmentation fault. #0 decode_address_header (pool=pool@entry=0x560631ad6d10, hdr=0x560631add4c8 "", address_r=address_r@entry=0x560631ad7090, name_r=name_r@entry=0x560631ad7098) at push-notification-event-message-common.c:20 20 push-notification-event-message-common.c: No such file or directory. (gdb) bt #0 decode_address_header (pool=pool@entry=0x560631ad6d10, hdr=0x560631add4c8 "", address_r=address_r@entry=0x560631ad7090, name_r=name_r@entry=0x560631ad7098) at push-notification-event-message-common.c:20 #1 0x00007f3f37955fbb in decode_address_header (name_r=0x560631ad7098, address_r=0x560631ad7090, hdr=<optimized out>, pool=0x560631ad6d10) at push-notification-event-message-common.c:62 #2 push_notification_message_fill (mail=mail@entry=0x560631adc088, pool=0x560631ad6d10, event_flags=(PUSH_NOTIFICATION_MESSAGE_HDR_FROM | PUSH_NOTIFICATION_MESSAGE_HDR_TO | PUSH_NOTIFICATION_MESSAGE_HDR_SUBJECT | PUSH_NOTIFICATION_MESSAGE_HDR_DATE | PUSH_NOTIFICATION_MESSAGE_BODY_SNIPPE$), from=<optimized out>, to=<optimized out>, subject=<optimized out>, date=0x560631ad7050, date_tz=0x560631ad7058, message_id=0x560631ad7078, flags=0x560631ad706c, flags_set=0x560631ad7068, keywords=0x560631ad7070, snippet=0x560631ad7060, ext=0x560631ad7080) at push-notification-event-message-common.c:62 #3 0x00007f3f37955a41 in push_notification_event_messagenew_event (ptxn=0x560631ad6d38, ec=0x560631ad6fe0, msg=0x560631ad7010, mail=0x560631adc088) at push-notification-event-messagenew.c:83 #4 0x00007f3f379571bd in push_notification_trigger_msg_save_new (txn=0x560631ad6d38, mail=0x560631adc088, msg=0x560631ad7010) at push-notification-triggers.c:138 #5 0x00007f3f383f52f3 in notify_contexts_mail_save (mail=0x560631adc088) at notify-plugin.c:62 #6 0x00007f3f383f65b8 in notify_copy (ctx=0x560631ad7890, mail=0x560631a98b18) at notify-storage.c:104 #7 0x00007f3f3860873d in quota_copy (ctx=0x560631ad7890, mail=0x560631a98b18) at quota-storage.c:302 #8 0x00007f3f39f91e32 in mailbox_copy_int (_ctx=<optimized out>, mail=0x560631a98b18) at mail-storage.c:2759 #9 0x00007f3f3641907f in ?? () from /usr/lib/dovecot/libdovecot-sieve.so.0 #10 0x00007f3f3640e64c in ?? () from /usr/lib/dovecot/libdovecot-sieve.so.0 #11 0x00007f3f3640f11b in sieve_result_implicit_keep () from /usr/lib/dovecot/libdovecot-sieve.so.0 #12 0x00007f3f364226e1 in sieve_multiscript_finish () from /usr/lib/dovecot/libdovecot-sieve.so.0 #13 0x00007f3f3668e488 in ?? () from /usr/lib/dovecot/modules/lib90_sieve_plugin.so #14 0x00007f3f3a2a260d in mail_do_deliver (storage_r=0x7ffedf944b40, ctx=0x7ffedf944c30) at mail-deliver.c:542 #15 mail_deliver (ctx=ctx@entry=0x7ffedf944c30, storage_r=storage_r@entry=0x7ffedf944b40) at mail-deliver.c:592 #16 0x000056063169c0e1 in lmtp_local_default_deliver (client=0x560631a5e898, lrcpt=<optimized out>, cmd=<optimized out>, trans=<optimized out>, lldctx=0x7ffedf944e70) at lmtp-local.c:593 #17 0x000056063169c8cf in lmtp_local_deliver (local=0x560631a849b0, local=0x560631a849b0, session=0x560631a9d748, src_mail=0x560631a98b18, llrcpt=0x560631a7f600, trans=0x560631a7fab8, cmd=0x560631a7f088) at lmtp-local.c:530 #18 lmtp_local_deliver_to_rcpts (session=0x560631a9d748, trans=0x560631a7fab8, cmd=0x560631a7f088, local=0x560631a849b0) at lmtp-local.c:654 #19 lmtp_local_data (client=client@entry=0x560631a5e898, cmd=cmd@entry=0x560631a7f088, trans=trans@entry=0x560631a7fab8, input=<optimized out>) at lmtp-local.c:730 #20 0x000056063169b0cf in client_default_cmd_data (client=0x560631a5e898, cmd=0x560631a7f088, trans=0x560631a7fab8, data_input=0x560631a83c00, data_size=<optimized out>) at lmtp-commands.c:275 #21 0x000056063169ae6f in cmd_data_finish (trans=0x560631a7fab8, cmd=0x560631a7f088, client=0x560631a5e898) at lmtp-commands.c:165 #22 cmd_data_continue (conn_ctx=0x560631a5e898, cmd=0x560631a7f088, trans=0x560631a7fab8) at lmtp-commands.c:213 #23 0x00007f3f39bfa2c7 in cmd_data_do_handle_input (cmd=0x560631a7f088) at smtp-server-cmd-data.c:285 #24 cmd_data_handle_input (cmd=0x560631a7f088) at smtp-server-cmd-data.c:333 #25 0x00007f3f39ca42af in io_loop_call_io (io=0x560631a7d8e0) at ioloop.c:718 #26 0x00007f3f39ca5c8c in io_loop_handler_run_internal (ioloop=ioloop@entry=0x560631a23fd0) at ioloop-epoll.c:222 #27 0x00007f3f39ca43c0 in io_loop_handler_run (ioloop=<optimized out>) at ioloop.c:770 #28 0x00007f3f39ca45e8 in io_loop_run (ioloop=0x560631a23fd0) at ioloop.c:743 #29 0x00007f3f39c124b3 in master_service_run (service=0x560631a23e60, callback=<optimized out>) at master-service.c:809 #30 0x0000560631699b45 in main (argc=<optimized out>, argv=<optimized out>) at main.c:169 I can provide one of the mails causing the crash if helpful (they are all spam). Best regards, Michael

2 7

Dovecot v2.3.9.1 released
by Aki Tuomi 13 Dec '19

13 Dec '19

Hi all! We are pleased to release v2.3.9.1 of Dovecot. Please find it from locations below https://dovecot.org/releases/2.3/dovecot-2.3.9.1.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.9.1.tar.gz.sig Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot --- * CVE-2019-19722: Mails with group addresses in From or To fields caused crash in push notification drivers. --- Aki Tuomi Open-Xchange oy

1 0

Dovecot auth crashing??
by Odhiambo Washington 13 Dec '19

13 Dec '19

Dovecot-2.3.9 I am seeing a lot of the following on my logs: Dec 13 09:16:25 auth: Warning: Timeout leak: 0x105fb00 (auth-request-handler.c:584) Dec 13 09:16:25 auth: Warning: Timeout leak: 0x105fb00 (auth-request-handler.c:584) Dec 13 09:16:25 auth: Warning: Timeout leak: 0x105fb00 (auth-request-handler.c:584) Dec 13 09:16:25 auth: Warning: Event 0x827d6e20 leaked (parent=0x827d4220): auth-request.c:878 Dec 13 09:16:25 auth: Warning: Event 0x827d6420 leaked (parent=0x827d4820): auth-request.c:878 Dec 13 09:16:25 auth: Warning: Event 0x82780c20 leaked (parent=0x827d6220): auth-request.c:878 Dec 13 09:16:25 auth: Warning: Event 0x827d6c20 leaked (parent=0x827d4220): auth-request.c:115 Dec 13 09:16:25 auth: Warning: Event 0x827d4220 leaked (parent=0x827d6a20): auth-request.c:114 Dec 13 09:16:25 auth: Warning: Event 0x827d6a20 leaked (parent=0x0): auth-client-connection.c:338 Dec 13 09:16:25 auth: Warning: Event 0x827d4c20 leaked (parent=0x827d4820): auth-request.c:115 Dec 13 09:16:25 auth: Warning: Event 0x827d4820 leaked (parent=0x827fe620): auth-request.c:114 Dec 13 09:16:25 auth: Warning: Event 0x827fe620 leaked (parent=0x0): auth-client-connection.c:338 Dec 13 09:16:25 auth: Warning: Event 0x827ff420 leaked (parent=0x827d6220): auth-request.c:115 Dec 13 09:16:25 auth: Warning: Event 0x827d6220 leaked (parent=0x82780e20): auth-request.c:114 Dec 13 09:16:25 auth: Warning: Event 0x82780e20 leaked (parent=0x0): auth-client-connection.c:338 Dec 13 11:27:29 master: Warning: Killed with signal 15 (by pid=9326 uid=0 code=kill) Dec 13 11:27:37 master: Warning: Killed with signal 15 (by pid=16518 uid=0 code=kill) Dec 13 11:27:38 auth: Error: net_connect_unix(auth-worker) failed: No such file or directory Dec 13 11:27:39 auth: Error: net_connect_unix(auth-worker) failed: No such file or directory Dec 13 11:27:59 auth: Error: net_connect_unix(/var/run/dovecot//stats-writer) failed: No such file or directory Dec 13 11:27:59 auth: Warning: Timeout leak: 0x105fb00 (auth-request-handler.c:584) Dec 13 11:27:59 auth: Warning: Timeout leak: 0x105fb00 (auth-request-handler.c:584) Dec 13 11:27:59 auth: Warning: Event 0x82781a20 leaked (parent=0x827d4620): auth-request.c:878 Dec 13 11:27:59 auth: Warning: Event 0x827d4220 leaked (parent=0x827d4820): auth-request.c:878 Dec 13 11:27:59 auth: Warning: Event 0x82780e20 leaked (parent=0x827d4620): auth-request.c:115 Dec 13 11:27:59 auth: Warning: Event 0x827d4620 leaked (parent=0x827d0820): auth-request.c:114 Dec 13 11:27:59 auth: Warning: Event 0x827d0820 leaked (parent=0x0): auth-client-connection.c:338 Dec 13 11:27:59 auth: Warning: Event 0x82781220 leaked (parent=0x827d4820): auth-request.c:115 Dec 13 11:27:59 auth: Warning: Event 0x827d4820 leaked (parent=0x827d0c20): auth-request.c:114 Dec 13 11:27:59 auth: Warning: Event 0x827d0c20 leaked (parent=0x0): auth-client-connection.c:338 Dec 13 11:28:07 auth: Warning: Timeout leak: 0x105fb00 (auth-request-handler.c:584) Dec 13 11:28:07 auth: Warning: Event 0x82780c20 leaked (parent=0x82781c20): auth-request.c:878 Dec 13 11:28:07 auth: Warning: Event 0x82781e20 leaked (parent=0x82781c20): auth-request.c:115 Dec 13 11:28:07 auth: Warning: Event 0x82781c20 leaked (parent=0x82781a20): auth-request.c:114 Dec 13 11:28:07 auth: Warning: Event 0x82781a20 leaked (parent=0x0): auth-client-connection.c:338 -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254 7 3200 0004/+254 7 2274 3223 "Oh, the cruft.", grep ^[^#] :-)

1 0

dovecot update from 2.1.16 to 2.2.36.4 but I have a trouble.
by iriya＠peach.ocn.ne.jp 13 Dec '19

13 Dec '19

Hi,I have a troble and can not resolve it. Please help me. I updated dovecot from 2.1.16 to 2.2.36.4. As a result, I had a client who could not access via imap. The client showed his logs (- folder not exists:INBOX ) I did not change dovecot config files. So I searched a difference between 2.1.16 and 2.2.36.4, I discovered . Please refer below results. [2.1.16] a03 list "" "*" * LIST (\HasChildren) "." "INBOX" * LIST (\HasNoChildren) "." "INBOX.Drafts" * LIST (\HasNoChildren) "." "INBOX.Sent" * LIST (\HasNoChildren) "." "INBOX.Spam" * LIST (\HasNoChildren) "." "INBOX.Trash" [2.2.36.4] a03 list "" "*" * LIST (\HasChildren) "." INBOX * LIST (\HasNoChildren) "." INBOX.Drafts * LIST (\HasNoChildren) "." INBOX.Sent * LIST (\HasNoChildren) "." INBOX.Spam * LIST (\HasNoChildren) "." INBOX.Trash For example, I noticed INBOX and "INBOX". 2.2.36.4 dovecot is no [""]. What should I do?

2 1

v2.2.36 to v2.3.8 maildirlock bug
by lty＠cndns.com 12 Dec '19

12 Dec '19

Dear all, Dovecot upgraded from v2.2.36 to v2.3.8 There is no problem with the configuration, but the lock directory seems to have an error. [root@spam dovecot]# /usr/libexec/dovecot/maildirlock /path/to/maildir 1 Panic: BUG: No IOs or timeouts set. Not waiting for infinity. 19276[root@spam dovecot]# Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0xe227a) [0x7f1cb567a27a] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe2321) [0x7f1cb567a321] -> /usr/lib64/dovecot/libdovecot.so.0(+0x40f31) [0x7f1cb55d8f31] -> /usr/lib64/dovecot/libdovecot.so.0(+0xf93b4) [>xrf1cb56913b4] -> /usr/ Lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x28) [0x7f1cb5693918] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x5c) [0x7f1cb5691aac] -> /usr/lib64/dovecot/libdovecot. So.0(io_loop_run+0x38) [0x7f1cb5691cc8] -> /usr/libexec/dovecot/maildirlock(main+0x242) [0x7f1cb5b522c2] -> /lib64/libc.so.6(__libc_start_main+0x100) [0x7f1cb5222d20] -> / Usr/libexec/dovecot/maildirlock(+0xfa9) [0x7f1cb5b51fa9] After google seems to be a bug, this is the address Https://bugs.gentoo.org/682498 If this is not fixed, we are temporarily unable to upgrade to use the new version. Will the next version be fixed? We are looking forward to seeing that we have returned v2.2.36

4 5

Lightweight LMTP daemon to avoid overkill MTA
by William Edwards 12 Dec '19

12 Dec '19

Hi, My situation is as follows. -An internet-facing spam filter relays email to destination mail server (Dovecot) with SMTP. - Dovecot should take email and deliver it to user's mailboxes. I guess I'd need LMTP for this. - An external SMTP relay is already in place. I am thinking of using Dovecot submission to relay to the external relaying cluster. So, both relaying and routing are done externally - the Dovecot machine should only store mail. Of course, there should also be a mechanism that takes care of local delivery to Dovecot, like LMTP. Usually, I would use an MTA like Exim to take care of local delivery. I feel like a fully-featured MTA is overkill, though, as all other roles such an MTA would fulfill - relaying and spam filtering - are fulfilled on external servers. Q: Does anyone know of a lightweight LMTP daemon that can take care of local delivery to Dovecot without the need for a full MTA? With kind regards, William Edwards T. 040 - 711 44 96 E. wedwards(a)cyberfusion.nl

3 7

Submission config being ignored
by William Edwards 12 Dec '19

12 Dec '19

I'm having trouble setting up submission with Dovecot proxy. The submission config seems to be getting ignored, but I'm probably doing something wrong. Expected behaviour: have messages sent to submission ports (25, 465) relayed to `submission_relay_host`. -- root@imapproxy1:~# cat /etc/dovecot/conf.d/20-submission.conf submission_logout_format = in=%i out=%o submission_relay_host = smtp.prorelay.nl submission_relay_port = 587 submission_relay_ssl = starttls submission_relay_ssl_verify = no service submission { } service submission-login { inet_listener submission_25 { port = 25 } inet_listener submission_465 { port = 465 ssl = yes } } -- What happens instead: Dovecot is attempting to send mail to the host specified in the passdb file: root@imapproxy1:~# cat /etc/virtual/xalys.nl/passwd test:$password.:8:8::/home/test.nl/test:/bin/false:userdb_quota_rule=*:bytes=0 proxy_maybe=y host=$ipaddr How do I get Dovecot to relay mail sent to submission ports to 'submission_relay_host'? Met vriendelijke groeten, William Edwards T. 040 - 711 44 96 E. wedwards(a)cyberfusion.nl submission_relay_host

2 2

Duplicate e-mail with Dovecot and Sieve
by Claudio Corvino 12 Dec '19

12 Dec '19

Hi everyone, we have a duplicate e-mail problem with Dovecot 2.2.13 (LMTP as MDA) on a Debian 8 server. Our users are on external LDAP. We just need to setup a vacation responder (with Sieve) for our employees with a redirect to an alias (a distribution list), let's call it /LIST(a)domain.com/, that comprehends even the user that just activated the out of office. This generates a loop: when someone write to LIST(a)domain.com every user of the aforementioned distribution list receives a duplicate e-mail generated from the sieve script of the user with vacation responder active that contains the redirect to LIST(a)domain.com. We just tried activating the duplicate extension into sieve script but the redirected e-mail has a different MSG-ID and it's not recognized as a duplicate by the server. Our dovecot conf is: /# 2.2.13: /etc/dovecot/dovecot.conf auth_mechanisms = plain login default_vsz_limit = 512 M disable_plaintext_auth = no dotlock_use_excl = no info_log_path = /var/log/dovecot-info.log log_path = /var/log/dovecot.log mail_fsync = never mail_location = maildir:~/Maildir mail_max_userip_connections = 50 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave duplicate mmap_disable = yes passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } passdb { args = /etc/dovecot/dovecot-ldap-archive.conf driver = ldap } plugin { sieve = file:/var/www/html/ooo/%n/script sieve_dir = /var/www/html/ooo/%n/ sieve_duplicate_default_period = 1m sieve_duplicate_max_period = 1d sieve_extensions = +vnd.dovecot.duplicate +notify +imapflags +vacation-seconds sieve_global = /etc/dovecot/sieve/ sieve_max_redirects = 10 sieve_user_log = file:/var/www/html/ooo/%n/sieve_error.log sieve_vacation_default_period = 1d sieve_vacation_max_period = 90d sieve_vacation_min_period = 5s } protocols = imap pop3 lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-master { group = vmail mode = 0660 user = vmail } user = root } service imap-login { process_limit = 200 } service lmtp { executable = lmtp -L process_min_avail = 5 unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0666 user = postfix } user = vmail } service managesieve-login { executable = /usr/lib/dovecot/managesieve-login inet_listener sieve { port = 4190 } process_min_avail = 10 service_count = 1 } service managesieve { executable = /usr/lib/dovecot/managesieve } ssl_cert = </etc/ssl/*xxxxxxxxxxxxxxxxxxxxxxxx* ssl_cipher_list = ALL:!LOW:!aNULL:!eNULL:!SSLv2:!RC4:!MD5:!DES:!EXP:!SEED:!IDEA:!3DES ssl_key = </etc/ssl/private/*xxxxxxxxxxxxxxxxxx* userdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } userdb { args = /etc/dovecot/dovecot-ldap-archive.conf driver = ldap } protocol lda { auth_socket_path = /var/run/dovecot/auth-master hostname = *xxxxxxxxxxxxxxxxx* info_log_path = /var/log/dovecot-lda.log log_path = /var/log/dovecot-lda-errors.log mail_plugins = " autocreate sieve quota" } protocol lmtp { info_log_path = /var/log/dovecot-lmtp.log log_path = /var/log/dovecot-lmtp-errors.log mail_plugins = " autocreate sieve quota" postmaster_address = postmaster@*xxxxxxxxxx* } protocol sieve { info_log_path = log_path = mail_max_userip_connections = 10 managesieve_implementation_string = dovecot managesieve_logout_format = bytes=%i/%o managesieve_max_compile_errors = 5 managesieve_max_line_length = 65536 }/ An example of user sieve script is: /require ["vnd.dovecot.duplicate","copy","fileinto","vacation-seconds"]; # rule:[Outofoffice] if true { vacation :addresses "xxxxxxx(a)domain.tld" :subject "Automatic Reply" text: / /<Text here> . ; fileinto "INBOX";/ / redirect "LIST(a)domain.com";/ /}/ Please could someone give us support on the matter? Removing the redirect from sieve user script is not an option :-) Thanks Cheers -- *Claudio Corvino IT Systems Administrator* Trust Italia S.p.A. <https://www.trustitalia.it/> *DigiCert Italian Affiliate Certified Partner Platinum Elite* Via Flaminia, 497 - 00191 Roma *tel.: +39 06332287* *fax: +39 063336145* *e-mail: * ccorvino(a)trustitalia.it <mailto:ccorvino@trustitalia.it> *website: * www.trustitalia.it <https://www.trustitalia.it> Symantec Authentication Service Le modalità di trattamento dei dati a cui è stato dato il consenso e le relative finalità sono consultabili al link <https://www.trustitalia.it/archivio/legal_agreements/informativa_privacy_em…>. Qualora non desiderasse ricevere le nostre comunicazioni, potrà comunicarlo mediante il seguente link <https://www.trustitalia.it/site/info_css/05110101/revoca-del-consenso>. Inoltre, in ogni momento, potrà modificare o cancellare i dati presenti nel nostro archivio contattandoci all'indirizzo privacy(a)trustitalia.it <mailto:privacy@trustitalia.it> Se possibile non stamparmi! Se possibile, non stamparmi!

8 13

Lmtp redirection to other backend server
by Marc Roos 11 Dec '19

11 Dec '19

I have currently a working local delivery working ok on 2 backend servers. The backend servers use slapd/nslcd/nscd for local accounts. If I enable proxy=yes in the lmtp config section, I am getting this error 'auth: Debug: passdb out: FAIL#0111#011reason=Configured passdbs don't support credentials lookups' which is obvious because I do not have a passdb. I am not sure if it is possible to get this value from the system environment eg. nslcd/nscd, without the need to configure some separate ldap lookup in dovecot? Or do I really need to configure a ldap lmtp lookup just for this host attribute? What would be an efficient solution?

1 1

dkim + arc
by Aki Tuomi 11 Dec '19

11 Dec '19

If I don't get swamp of errors with this email, I'll stop the From munging starting tomorrow. There is now ARC signing done for mails. Lets see how this works, if we can stop rewriting from I'll be happy. Aki

2 2

Ban Atomia.com?
by LuKreme 11 Dec '19

11 Dec '19

Can a mail admin ban atomia.com from posting? I mean, I like the idea that every post is clogging up their support queue, but really, not that much. Sent from my iPhone

5 4

RE: lmtp delivery auth error, but successful delivery
by Marc Roos 11 Dec '19

11 Dec '19

It is a test environment, so I do not have much data. I am testing with 'mail wegjd' seems to deliver ok every time. -----Original Message----- Subject: RE: lmtp delivery auth error, but successful delivery Can you let me know if you get lots of delivery failures? Aki -------- Original message -------- From: Marc Roos <M.Roos(a)f1-outsourcing.eu> Date: 11/12/2019 22.16 (GMT+02:00) To: dovecot <dovecot(a)dovecot.org> Subject: lmtp delivery auth error, but successful delivery How to fix the auth passwd-file unknown user error? I guess I maybe have something active that I do not need? With this configuration in sendmail FEATURE(`local_lmtp',`[IPC]',`TCP [192.168.10.44] 24')dnl MAILER(local)dnl Dec 11 21:04:18 mailsvr dovecot: lmtp(15361): Connect from 192.168.10.44 Dec 11 21:04:18 mailsvr dovecot: auth: passwd-file(wegjd,192.168.10.44): unknown user Dec 11 21:04:18 mailsvr dovecot: lmtp(wegjd): msgid=<201912112004.xBBK4HoZ015358(a)mailsvr.xxxxxx.xxx>: saved mail to INBOX Dec 11 21:04:18 mailsvr dovecot: lmtp(15361): Disconnect from 192.168.10.44: Successful quit With this configuration in sendmail: FEATURE(`local_lmtp',`[IPC]',`FILE /var/run/dovecot/lmtp')dnl MAILER(local)dnl Dec 11 21:11:50 mailsvr dovecot: lmtp(15754): Connect from local Dec 11 21:11:51 mailsvr dovecot: auth: passwd-file(wegjd): unknown user Dec 11 21:11:51 mailsvr dovecot: lmtp(wegjd): msgid=<201912112011.xBBKBoRB015751(a)mailsvr.xxxxxx.xxx>: saved mail to INBOX Dec 11 21:11:51 mailsvr dovecot: lmtp(15754): Disconnect from local: Successful quit

1 0

lmtp delivery auth error, but successful delivery
by Marc Roos 11 Dec '19

11 Dec '19

How to fix the auth passwd-file unknown user error? I guess I maybe have something active that I do not need? With this configuration in sendmail FEATURE(`local_lmtp',`[IPC]',`TCP [192.168.10.44] 24')dnl MAILER(local)dnl Dec 11 21:04:18 mailsvr dovecot: lmtp(15361): Connect from 192.168.10.44 Dec 11 21:04:18 mailsvr dovecot: auth: passwd-file(wegjd,192.168.10.44): unknown user Dec 11 21:04:18 mailsvr dovecot: lmtp(wegjd): msgid=<201912112004.xBBK4HoZ015358(a)mailsvr.xxxxxx.xxx>: saved mail to INBOX Dec 11 21:04:18 mailsvr dovecot: lmtp(15361): Disconnect from 192.168.10.44: Successful quit With this configuration in sendmail: FEATURE(`local_lmtp',`[IPC]',`FILE /var/run/dovecot/lmtp')dnl MAILER(local)dnl Dec 11 21:11:50 mailsvr dovecot: lmtp(15754): Connect from local Dec 11 21:11:51 mailsvr dovecot: auth: passwd-file(wegjd): unknown user Dec 11 21:11:51 mailsvr dovecot: lmtp(wegjd): msgid=<201912112011.xBBKBoRB015751(a)mailsvr.xxxxxx.xxx>: saved mail to INBOX Dec 11 21:11:51 mailsvr dovecot: lmtp(15754): Disconnect from local: Successful quit

1 0

Atomia user activation
by Atomia 11 Dec '19

11 Dec '19

Hi Claudio Corvino via dovecot, A new Atomia account has been created for you. Click the url below to activate your account and select a password! https://support.atomia.com/register/KfOvGCowO4TkXeAXlMH0 If the above URL does not work try copying and pasting it into your browser. If you continue to have problems, please feel free to contact us. Regards, Atomia

1 0

Can't see a specific mail in thunderbird but with mobile mail client
by J. Echter 11 Dec '19

11 Dec '19

Hi, i've seen a strange behaviour in our system (centos 7, dovecot 2.2.36 (1f10bfa63) today. We got a mail and it got delivered. Dec 3 07:56:25 mail postfix/lmtp[4013]: 915B0CEF4C2: to=<user@domain>, relay=mail[private/dovecot-lmtp], delay=1.5, delays=1.3/0.03/0.02/0.19, dsn=2.0.0, status=sent (250 2.0.0 <user@domain> AOhCNBgH5l2vDwAAtnFApQ:2 Saved) Dec 3 07:56:25 mail dovecot: lmtp(user@domain): AOhCNBgH5l2vDwAAtnFApQ:2: sieve: msgid=<289913405.81.1575356173625.JavaMail.SYSTEM@EUWS0716>: stored mail into mailbox 'INBOX' I also see this mail on the filesystem in the users cur dir: -rw-r--r--. 1 vmail vmail 448818 3. Dez 07:56 1575356184.M937345P4015.mail,S=611100,W=619338:2,Sae But i don't see this single mail in thunderbird and not in sogo (http://www.sogo.nu) but i can see it in the mobile mail client. Does anyone have a suggfestion what may be wrong here? I paste my dovecot -n output here: # 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.24 (124e06aa) # OS: Linux 3.10.0-1062.4.3.el7.x86_64 x86_64 CentOS Linux release 7.7.1908 (Core) xfs # Hostname: mail.workgroup.local auth_master_user_separator = * auth_verbose = yes base_dir = /var/run/dovecot/ default_vsz_limit = 2 G imap_id_log = * imap_id_send = * log_timestamp = "%Y-%m-%d %H:%M:%S " login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k mail_gid = 5000 mail_home = /DATEN/vmail/%Ld/%Ln mail_location = maildir:/DATEN/vmail/%Ld/%Ln/mail/ mail_plugins = " zlib fts fts_solr mail_log notify" mail_uid = 5000 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave namespace inbox { inbox = yes location = mailbox Archive { auto = no special_use = \Archive } mailbox Archives { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { auto = no special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = /etc/dovecot/passwd.masterusers driver = passwd-file master = yes } passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } plugin { fts = solr fts_autoindex = yes fts_solr = break-imap-search url=http://localhost:8983/solr/dovecot/ imapsieve_mailbox1_before = file:/etc/dovecot/sieve/learn-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Junk imapsieve_mailbox2_before = file:/etc/dovecot/sieve/learn-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Junk imapsieve_mailbox2_name = * mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size mailbox_alias_new = Sent Messages mailbox_alias_new2 = Sent Items mailbox_alias_new3 = Deleted Messages mailbox_alias_new4 = Papierkorb mailbox_alias_new5 = Spam mailbox_alias_old = Sent mailbox_alias_old2 = Sent mailbox_alias_old3 = Trash mailbox_alias_old4 = Trash mailbox_alias_old5 = Junk mailbox_list_index = yes recipient_delimiter = + sieve = /DATEN/vmail/%Ld/%Ln/.dovecot.sieve sieve_after = /etc/dovecot/sieve-after sieve_global_extensions = +vnd.dovecot.pipe sieve_pipe_bin_dir = /usr/bin sieve_plugins = sieve_imapsieve sieve_extprograms zlib_save = gz zlib_save_level = 6 } protocols = sieve imap lmtp service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0660 user = vmail } user = root } service imap-login { chroot = login executable = /usr/libexec/dovecot/imap-login inet_listener imap { port = 0 } process_min_avail = 4 user = dovecot } service imap { executable = /usr/libexec/dovecot/imap } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service managesieve-login { chroot = login user = dovecot } service pop3-login { chroot = login user = dovecot } ssl = required ssl_cert = </etc/pki/tls/certs/server.crt ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } valid_chroot_dirs = /var/spool/vmail protocol lda { mail_plugins = sieve postmaster_address = postmaster } protocol imap { mail_plugins = " zlib fts fts_solr mail_log notify imap_zlib imap_sieve" } protocol lmtp { mail_plugins = " zlib fts fts_solr mail_log notify quota sieve" postmaster_address = postmaster@domain } Thanks for any hints. Greetings Juergen

4 7

configured solr - question 2
by Wojciech Puchar 11 Dec '19

11 Dec '19

How to free space when say folders are removed in mail account. Or whole account is removed?

1 0

configured solr - question 1
by Wojciech Puchar 11 Dec '19

11 Dec '19

tested dovecot with solr. Works well. But it uses TCP connection between solr server and dovecot. Can it be password protected? I have other things than IMAP on the same server including remote users. i don't want them to be able to do mess.

1 0

Solr for Dovecot on Debian 9, package has correct binary?
by John Gateley 11 Dec '19

11 Dec '19

Hello, I am trying to get Solr full text searching working on Debian 9 with Dovecot, and I suspect the binary for dovecot does not have solr enabled (--with-solr). root@elephant:/etc/dovecot/conf.d# /usr/sbin/dovecot --build-options Build options: ioloop=epoll notify=inotify ipv6 openssl io_block_size=8192 Mail storages: shared mdbox sdbox maildir mbox cydir imapc pop3c raw fail SQL driver plugins: mysql postgresql sqlite Passdb: checkpassword ldap pam passwd passwd-file shadow sql Userdb: checkpassword ldap(plugin) nss passwd prefetch passwd-file sql root@elephant:/etc/dovecot/conf.d# If I want to use solr, do I have to build dovecot myself? I'd prefer to use the debian package (Debian 9 for now). Thanks! John

2 1

Learning ham/spam with IMAPSieve: sa-learn-ham.sh terminated abnormally, signal 11
by Jens Rey 10 Dec '19

10 Dec '19

Hello, I am trying to get rspam to learn what is spam and what is ham. After following the IMAPSieve guide in the dovecot wiki (https://wiki2.dovecot.org/HowTo/AntispamWithSieve) the mail.log shows the following, whenever I move a mail from the Spam folder to my inbox and vice versa: sieve: Opening script 1 of 1 from `/usr/lib/dovecot/sieve/report-ham.sieve' sieve: Loading script /usr/lib/dovecot/sieve/report-ham.sieve sieve: Script binary /usr/lib/dovecot/sieve/report-ham.svbin successfully loaded sieve: binary save: not saving binary /usr/lib/dovecot/sieve/report-ham.svbin, because it is already stored sieve: Executing script from `/usr/lib/dovecot/sieve/report-ham.svbin' sieve: action pipe: running program: sa-learn-ham.sh Mailbox INBOX: Opened mail UID=2996 because: mail stream Debug: waiting for program `/usr/lib/dovecot/sieve/sa-learn-ham.sh' to finish after 0 msecs Error: program `/usr/lib/dovecot/sieve/sa-learn-ham.sh' terminated abnormally, signal 11 Error: sieve: pipe action: failed to pipe message to program `sa-learn-ham.sh': refer to server log for more information. [2019-11-17 00:39:33] Error: sieve: Execution of script /usr/lib/dovecot/sieve/report-ham.sieve failed My relevant dovecot configuration: plugin { imapsieve_mailbox1_before = file:/usr/lib/dovecot/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/usr/lib/dovecot/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * sieve = file:/var/vmail/sieve/%d/%n/scripts;active=/var/vmail/sieve/%d/%n/active-script.sieve sieve_before = /var/vmail/sieve/global/spam-global.sieve sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment sieve_pipe_bin_dir = /usr/lib/dovecot/sieve sieve_plugins = sieve_imapsieve sieve_extprograms } $ dovecot --version 2.2.27 (c0f36b0) $ ls -l /usr/lib/dovecot/sieve/ total 24 -rw-r--r-- 1 root root 314 Nov 17 00:25 report-ham.sieve -rw-r--r-- 1 root root 448 Nov 17 00:30 report-ham.svbin -rw-r--r-- 1 root root 199 Nov 17 00:25 report-spam.sieve -rw-r--r-- 1 root root 354 Nov 17 00:30 report-spam.svbin -rwxr-xr-x 1 root root 41 Nov 17 00:32 sa-learn-ham.sh -rwxr-xr-x 1 root root 42 Nov 17 00:32 sa-learn-spam.sh $ cat sa-learn-ham.sh #!/bin/sh exec /usr/bin/rspamc learn_ham When I execute the script manually, it seems to work: $ cat [some-mail] | /usr/lib/dovecot/sieve/sa-learn-ham.sh Results for file: stdin (0.011 seconds) success = true; filename = "stdin"; scan_time = 0.012000; Again, with the same mail: $ cat [some-mail] | /usr/lib/dovecot/sieve/sa-learn-ham.sh Results for file: stdin (0.000 seconds) error = "<some-mail> has been already learned as ham, ignore it"; filename = "stdin"; scan_time = 0.0; Any ideas what causes the abnormal temrination of the script? Regards, Jens

3 8

Re: fts_solr: Error: fts_solr: received invalid uid '0'
by Fabian Kuran 10 Dec '19

10 Dec '19

Hi, > Am 23.09.2019 um 09:36 schrieb Filip Hanes <filip.hanes(a)ringier.sk>: > > > št 19. 9. 2019 o 15:30 Fabian via dovecot <dovecot(a)dovecot.org <mailto:dovecot@dovecot.org>> napísal(a): > Are there any other hints or tips regarding this „invalid uid ‚0‘"-message? > from fts-solr source: > case SOLR_XML_CONTENT_STATE_UID: > if (uint32_parse(str, len, &ctx->uid) < 0 || ctx->uid == 0) { > i_error("fts_solr: received invalid uid '%s'", t_strndup(str, len)); > It means that plugin tries to parse '0' when in state of parsing uid in xml response from solr or there is a bug in xml response parser. > I would enable rawlog_dir in config and look there for unusual response or extra tags near usual uid in xml response. For example: > plugin { > fts = solr > fts_solr = url=... rawlog_dir=/var/log/fts-solr/ > } > Thanks for this tip! The rawlog_dir option is not yet supported in our version 2.3.4. What we could provide now would be the XML-Response from Solr. The corresponding search query sometimes causes this error. But Solr's answer seems to always remain the same - in my opinion this already indicates a bug of Dovecot? The XML response can be downloaded here: https://owncloud.eideo.de/index.php/s/8oyJaf5HBK6zdbr Kind regards, Fabian

4 6

Re: Dovecot & OAuth
by Aki Tuomi 10 Dec '19

10 Dec '19

Hi! It seems there is a bug in the oauth2 driver, it loads the cert files wrong way. I'll make an internal bug report of this. Aki > On 06/12/2019 16:42 mizuki <mizuki0621(a)gmail.com> wrote: > > > Hi, > > For troubleshooting purposes, I change the read/write permissions on the certs and confirmed 'dovecot' can read them w/o problem, but still seeing the same errors. :( > Mizuki > > > On Fri, Dec 6, 2019 at 1:35 AM Aki Tuomi <aki.tuomi(a)open-xchange.com> wrote: > > > > Is the key/cert pair readable by dovecot user? auth process does not run as root. > > > > > > > > > > You can add > > > > > > > > > > service auth { > > > > extra_groups = ssl_cert > > > > } > > > > > > > > > > and chgrp the cert to ssl_cert to allow access to the cert. > > > > > > > > > > Aki > > > > > On 06/12/2019 04:16 mizuki via dovecot <dovecot(a)dovecot.org> wrote: > > > > > > > > > > > > > > > > > > > > > > > > I changed some of the tls options following the document, now config is following: > > > > > > > > > > > > > > > > > > > > > > > > tokeninfo_url = https://keycloak.com/auth/realms/mail/protocol/openid-connect/token > > > introspection_url = https://dovecot:7598e21b-ec34-481f-80d0-059bddae0923@keycloak.com/auth/real… > > > introspection_mode = post > > > debug = yes > > > rawlog_dir = /tmp/oauth2 > > > #force_introspection = yes > > > username_attribute = username > > > #active_attribute = active > > > #active_value = true > > > tls_ca_cert_file = /etc/pki/CA/certs/incommon-rsa-server-ca.crt > > > tls_cert_file = /etc/pki/dovecot/certs/dovecot.pem > > > tls_key_file = /etc/pki/dovecot/private/dovecot.pem > > > > > > > > > --------------- > > > > > > > > > > > > > > > The debug log is showing now slightly different msg ex: > > > > > > Dec 5 21:09:59 mktst4 dovecot: auth: Error: oauth2(mizuki,10.0.2.1,<29b4iv+YKuuCx5Tr>): oauth2 failed: Couldn't initialize SSL context: Can't load SSL certificate: There is no valid PEM certificate. > > > > > > > > > > > > > > > Still not able to connect to the keyclaok server. :( > > > > > > > > > > > > > > > > > > PS: Dovecot & Keycloak severs are both using the same legit cert/key pair with CA file configured. > > > > > > > > > > > > > > > Thanks! > > > > > > Mizuki > > > > > > > > > > > > > > > > > > > > > On Thu, Dec 5, 2019 at 3:06 PM Aki Tuomi < aki.tuomi(a)open-xchange.com> wrote: > > > > > > > > > > Before declaring it not ready for prime time, did you try setting > > > > > > > > tls_ca_cert_file = /etc/ssl/certs/ca-certificates.crt > > > > > > > > In the oauth2 configuration file as documented in https://doc.dovecot.org/configuration_manual/authentication/oauth2 ? > > > > > > > > Aki > > > > > > > > > On 05/12/2019 21:58 mizuki via dovecot < dovecot(a)dovecot.org> wrote: > > > > > > > > > > > > > > > Hi all, > > > > > > > > > > We'd like to enable OAuth with Keycloak in Dovecot, after enabling 'OAUTHBEARER XOAUTH2' in Dovecot based on online document, I can confirm Dovecot is ready for OAuth using openssl command, however when the auth request comes in, it failed in establishing a SSL connection with Keycloak server on port 443, shown as following in debug logs. I can confirming using commands 'openssl s_client -connect <keycloak_server>:443' or 'curl -v https://<keycloak_server/' all returns normal and no errors. Altering some of the SSL options in dovecot such as 'ssl_ca = </etc/pki/CA/certs/root_ca.pem' or 'ssl_client_ca_file = </etc/pki/CA/certs/root_ca.pem' does not help either. The certificate are NOT self-signed but signed the legit authorities. So I'm not sure why dovecot could not establish the connections. > > > > > > > > >

3 4

OAuth2 mail client
by mizuki 10 Dec '19

10 Dec '19

Hi all, I'm wondering if there are any IMAP client software alternative to Thunderbird who can handle OAuth2 other than using gmail, yahoo etc (ex, talk to local auth provider)? Thunderbird does not seem to support well at the time being so I'm wondering what other choices we may have for our user communities. Thank you very much. Mizuki

1 0

Problem With Quota Dovecot
by Gter Marcelo 09 Dec '19

09 Dec '19

Hi Dears, I have one problem with Dovecot in My mailserver. Dovecot Quota setting is not working fine. plugin { quota = dict:User quota::file:MAILDIR/dovecot-quota quota_rule = *:storage=1GB } For example if i put the limit in 1GB, i have accounts in my mailbox with size of maildir in 3gb,4gb for exemple and if i running the command doveadm quota get -u ACCOUNT_MY_USER The user with 2GB should be return 100% or some number bigger , but return 45% used only, If i force running one force-resync, the quota-get return the size correct showing more than 100% Someone can Help me ?

2 4

[whishlist] new option for 'doveadm purge'
by Michael Grimm 09 Dec '19

09 Dec '19

Hi, I do store mail in mdbox format of 150m in size (dovecot 2.3.9). Once in a while I do experience mdbox files of smaller size, even after applying 'doveadm purge' and previous expunges by the users. like: -rw------- 1 vmail dovecot 104854595 Feb 9 2019 /var/mail/.maildirs/userX/storage/m.22 -rw------- 1 vmail dovecot 29088478 Mar 8 2019 /var/mail/.maildirs/userX/storage/m.31 -rw------- 1 vmail dovecot 98210890 Mar 20 2019 /var/mail/.maildirs/userX/storage/m.39 (Currently the counter is at file number 129.) Well, I never experienced missing mail or alike, but these "holes" in filesize irritates me, and yes, it is more or less a cosmetic issue. Nevertheless, I do sometimes want to get rid of these "holes" by backing up all mail and re-injecting the backup into a vanilla account of that user. And I used this approach when I wanted to store all mail messages in larger mdbox files; again, rather a cosmetic issue. BUT that takes a very, very long time contrary to the speed of 'doveadm purge'. Unfortunately, that command starts somewhere with more recent mdbox files and never from scratch (oldest mdbox file). Whishlist: Would it be much of an effort to implement an option like: 'doveadm purge -f' and '-f' standing for 'force' or 'from scratch' or 'from the very first message found' or 'you name it'? Thanks in advance and thanks for Dovecot and with kind regards, Michael

2 2

bash script hook lda_mailbox_autocreate for generate mail-crypt user encrypted private key with user password
by uxqex4efpu＠elude.in 09 Dec '19

09 Dec '19

What it is way most best for causing bash script run (as root) of time mailbox created (lda_mailbox_autocreate)? I use dovecot 2.3.4.1 in Debian 10. And I use of mail-crypt-plugin https://doc.dovecot.org/configuration_manual/mail_crypt_plugin/ I setup mail-crypt for requiring user encrypted EC key (mail_crypt_require_encrypted_user_key = yes). I want for passphrase encrypt EC key using client plaintext password. There is credential no stored on server. But for user with use password too bad, I concatenate user plaintext password with random salt. And then string to SHA512() hash and use as decryption key (mail_crypt_private_password) for EC private key. For above I have plugin config > mail_plugins = $mail_plugins mail_crypt > plugin { > mail_crypt_curve = secp256k1 > mail_crypt_require_encrypted_user_key = yes > mail_crypt_save_version = 2 > } And for returning userdb_mail_crypt_private_password, I have sql query > password_query = SELECT username, password, \ > SHA2( CONCAT('%w',salt), 512 ) AS userdb_mail_crypt_private_password \ > FROM virtual_users WHERE username='%u'; But how I generate key of user automatically? Note for generating key of user, I need user password plaintext. I never save plaintext password of user of the server. Also user of note creates in PHP of web of the server. And for security I do not allow PHP exec shell (php.ini disabled_functions). Definitely not leaving PHP doveadm access! For solving subject to generate user key encrypted, I do imap of call of the service 'imap-postlogin' the service likes document "Post-login scripting' write https://doc.dovecot.org/admin_manual/post_login_scripting/ And 'imap-postlogin' execute my custom script with 'script-login' binary https://github.com/dovecot/core/blob/8606e1abb90a1c91357b84bf547a89564d0535… Here it is config for above > service imap { > executable = imap imap-postlogin > } > service imap-postlogin { > executable = script-login /usr/local/bin/generateKeys.sh > unix_listener imap-postlogin { > } > } And generateKeys.sh it is script simple for generating keys with sha256() hash product mysql. Variable of note ${MAIL_CRYPT_PRIVATE_PASSWORD} automatically put of 'userdb_mail_crypt_private_password' return of mysql field of query when documented https://doc.dovecot.org/admin_manual/post_login_scripting/running-surroundi… > Fields returned by userdb lookup with their keys uppercased > (e.g. if userdb returned home, it's stored in HOME). Here generatekeys.sh > #!/bin/bash > if [ `/usr/bin/doveadm mailbox cryptokey list -u "${USER}" -U > /dev/null | wc -l` -lt 2 ]; then > /usr/bin/doveadm -o "plugin/mail_crypt_private_password=${MAIL_CRYPT_PRIVATE_PASSWORD}" mailbox cryptokey generate -u "${USER}" -U > /dev/null > fi > exec "$@" This work! But I want more good. By why execute each login? Possible has generateKeys.sh execute in the times only of dovecot create mailbox (lda_mailbox_autocreate) instead?

2 4

Execute a script from dovecot when authentication fails
by nb 09 Dec '19

09 Dec '19

Hello, My name is Noury, and I’m new here. I’ve been using dovecot IMAP for years, but I want to do now some extra things. I want to call a script from within dovecot, to build a suspicious IP addresses list when authentication fails. I have tried the PostLoginScripting technic. It works fine but it doesn’t suit my needs. The script executes only after a successful login. I want to execute my script only when auth fails. If I can execute a script and check into it if auth failed, I would be nice too. A kind of « PreLoginScript" Is there a way to achieve this? I’m reading now auth.log file, but I would like to have a realtime processing. Thanks in advance. Noury

2 1

Re: How do I set all my mailboxes to "subscribed"
by Aki Tuomi 09 Dec '19

09 Dec '19

2 1

Shared namespace is empty after migration to new Dovecot installation
by Peter Reinhold 09 Dec '19

09 Dec '19

Hi all, I've used most of this weekend finalizing my migration from an old server running Dovecot 2.2.22 to a brand new installation running 2.3.8. In general, the migration was painless, everything just clicked, but checking up on the finer details post migration i've found out that user shared folders does not seem to work anymore, and I simply can't get it to work. The setups are more or less identical, biggest change is probably the addition of a Solr search index, and i've done very little changes in the configuration files. The acl_shared_dict file is being created and updated when I share a folder In the user thats sharing the folder, the dovecot-acl and dovecot-acl-list files are created and look the same. But, the user that should be reading the shared folder can not see it, the Shared namespace is simply empty, which it is not on the old installation, and namespace setup is identical across the two servers. (Except for the CaSiNg of the location of the index and indexpvt) Logging in and doing an IMAP command : A1 LIST "Shared/" "*" yields this on the old server. (I've replaced the sharing users e-mail to user(a)sharer.dk and the reading users to user(a)reader.dk) A1 LIST "Shared/" "*" * LIST (\HasNoChildren) "/" Shared/user(a)sharer.dk A1 OK List completed (0.000 + 0.000 secs). and this on the new A1 LIST "Shared/" "*" A1 OK List completed (0.006 + 0.000 + 0.005 secs). Log output from the new server below (i've only included the events happening during the LIST account) -- New, non-working log start -- Namespace : type=shared, prefix=Shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=no location=maildir:/data/mail/%d/%n/maildir:INDEX=~/maildir/shared/%u:INDEXPVT:~/maildir/shared/%u shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt= fts: Indexes disabled for namespace 'Shared/%u/' acl: initializing backend with data: vfile acl: acl username = user(a)reader.dk acl: owner = 0 acl vfile: Global ACLs disabled acl vfile: file /data/mail/reader.dk/user/maildir/dovecot-acl not found acl vfile: file /data/mail/reader.dk/user/maildir/.Junk/dovecot-acl not found acl vfile: file /data/mail/reader.dk/user/maildir/.Trash/dovecot-acl not found acl vfile: file /data/mail/reader.dk/user/maildir/.Sent/dovecot-acl not found auth-master: userdb lookup(user(a)sharer.dk): Started userdb lookup auth-master: conn unix:/var/run/dovecot/auth-userdb: Connecting auth-master: conn unix:/var/run/dovecot/auth-userdb (pid=1636,uid=0): Client connected (fd=16) auth-master: userdb lookup(user(a)sharer.dk): auth USER input: user(a)sharer.dk uid=120 gid=129 home=/data/mail/sharer.dk/user auth-master: userdb lookup(user(a)sharer.dk): Finished userdb lookup (username=user(a)sharer.dk uid=120 gid=129 home=/data/mail/sharer.dk/user) Namespace Shared/: Using permissions from : mode=0700 gid=default -- New, non-working log end -- and here from the old, working installation -- Old, working log start -- Namespace : type=shared, prefix=Shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=no location=maildir:/data/mail/%d/%n/maildir:INDEX=~/Maildir/shared/%u:INDEXPVT=~/Maildir/shared/%u shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt= acl: initializing backend with data: vfile acl: acl username = user(a)reader.dk acl: owner = 0 acl vfile: Global ACLs disabled auth input: user(a)sharer.dk uid=118 gid=126 home=/data/mail/sharer.dk/user namespace/default/inbox=yes maildir++: root=/data/mail/sharer.dk/user/maildir, index=/data/mail/sharer.dk/user/Maildir/shared/user(a)sharer.dk, indexpvt=/data/mail/sharer.dk/user/Maildir/shared/user(a)sharer.dk, control=, inbox=/data/mail/sharer.dk/user/maildir, alt= acl: initializing backend with data: vfile acl: acl username = user(a)sharer.dk acl: owner = 1 acl vfile: Global ACLs disabled maildir++: root=/data/mail/sharer.dk/user/maildir, index=/data/mail/reader.dk/user/Maildir/shared/user(a)sharer.dk, indexpvt=/data/mail/reader.dk/user/Maildir/shared/user(a)sharer.dk, control=, inbox=/data/mail/sharer.dk/user/maildir, alt= acl: initializing backend with data: vfile acl: acl username = user(a)reader.dk acl: owner = 0 acl vfile: Global ACLs disabled acl vfile: reading file /data/mail/sharer.dk/user/maildir/dovecot-acl acl: Mailbox not in dovecot-acl-list: Shared/user(a)sharer.dk/Junk acl: Mailbox not in dovecot-acl-list: Shared/user(a)sharer.dk/Trash acl: Mailbox not in dovecot-acl-list: Shared/user(a)sharer.dk/Sent acl: Mailbox not in dovecot-acl-list: Shared/user(a)sharer.dk/Drafts acl: Mailbox not in dovecot-acl-list: Shared/user(a)sharer.dk/Junk acl: Mailbox not in dovecot-acl-list: Shared/user(a)sharer.dk/Trash acl: Mailbox not in dovecot-acl-list: Shared/user(a)sharer.dk/Sent acl: Mailbox not in dovecot-acl-list: Shared/user(a)sharer.dk/Drafts -- Old, working log end -- The two logs are quite different, the new one seems to do user lookups via the auth socket, which the old one does not, and then just stops there. I'm not going to try and speculate more, I hope that someone here can see something from the logs, as I simply do not know how to fix this problem. -- Peter Reinhold

2 2

director option
by soumitri＠iitk.ac.in 09 Dec '19

09 Dec '19

Hi, I think option-2 below seems better or am I missing something with director concept. 1. As director and back-end in same server (broken) not recommended, I need minimum 4 servers (2 for director, 2 back-end IMAP). Indexes and mail must be in NFS shared storage(not optimal), as a user may land on any of the back-end servers (assuming no static mapping of user from pass DB). 2) Proxy_may in passDB (static mapping of users to servers makes balancing little partial but can be admin optimized) can achieve the above setup with 2 servers without director. Here indexes can be on their local disk (efficient) and mail on shared storage (NFS). Both case I can use RR DNS to get users IMAP traffic to front end. Any guidance on this is appreciated. -- Sincerely, Soumitri Mishra

1 1

Adding Size information to Maildir files
by ＠lbutlr 08 Dec '19

08 Dec '19

I searched on this, but found information only for very very old dovecot versions, and those answers didn’t quite cover what I am asking. All my current mail has the ",S=51489,W=52449:” style tag in the Maildir filename, but I have many messages in Archive mailboxes that have no size information. Is it possible to automate adding the size info to the files without mucking up the mail in various ways? (In my mail spool its about 10:1 with nearly 400,000 mails tagged with a size field and just over 40,000 not tagged, so it is definitely not something I want to do by hand). -- You know, Rick, I have many a friend in Casablanca, but somehow, just because you despise me, you are the only one I trust.

1 0

SEARCH=INTHREAD not announced in capabilities
by kael 08 Dec '19

08 Dec '19

Hello, Looking at the SEARCH=INTHREAD extension, Dovecot implements it but the server doesn't announce the extension in its capabilities (at least testing with imap://dovecot.org or looking at https://github.com/dovecot/core/blob/169b1ff42a28cdf2768391d20e8fef13aeae54… ) It does work though: a UID SEARCH INTHREAD REFS HEADER subject "Re: bash script" * SEARCH 106075 106076 106084 a OK Search completed (1.047 + 0.000 + 1.046 secs). I'd have thought that announcing THREAD=REFS would imply SEARCH=INTHREAD, but testing with Fastmail only the former is implemented. Looks like a bug in Dovecot as the client can't discover the SEARCH=INTHREAD capability. Cheers. -- kael

1 0

Accessing the -a and -d from dovecot-lda
by Aristedes Maniatis 08 Dec '19

08 Dec '19

I've got exim set up to deliver like this: command = /usr/local/libexec/dovecot/dovecot-lda -a $original_local_part@$original_domain -d $local_part@$domain -f $sender_address If an email to is bob+sales(a)ish.com.au then we should have "-a bob+sales(a)subdomain.ish.com.au -d bob(a)ish.com.au". Now in dovecot, only bob(a)ish.com.au is a real user but I want to be able to use both addresses in different places. For LDAP lookup I need to reference bob(a)ish.com.au. But in sieve, I need to see the original address with plus notation. However, dovecot appears to get the "-a" address into %u and the "-d" address can't be accessed. https://doc.dovecot.org/configuration_manual/config_file/config_variables/ Is what is the point of dovecot-lda having both -a and -d options? Can I get at both bits of data? Thanks Ari

2 1

ssl_min_protocol = TLSv1.3 does not work
by Laurens Post 08 Dec '19

08 Dec '19

Hi all, I'm trying to set up my server with support for TLS 1.3 only, but that does not seem to be supported. First off, TLS 1.3 itself does work fine, so it's not the config or ssl library, and 1.3-only works fine with Postfix. The problem is only in disabling TLS 1.2 for Dovecot. On connection, I'm getting an error that 1.3 is an "Unknown ssl_min_protocol setting". Reading the source code, it seems that `openssl_min_protocol_to_options` in `src/lib-ssl-iostream/iostream-openssl-common.c` is simply missing an entry like { SSL_TXT_TLSV1_3, TLS1_3_VERSION, SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_1 | SSL_OP_NO_TLSv1_2 } Is this a bug, something intentional, or has it simply not been added yet because nobody has been crazy enough to ask for it? Kind regards, Laurens

3 2

Dovecot 2.3.8 - How to force index creation for user/mailbox?
by Tomek Lutelmowski 08 Dec '19

08 Dec '19

Hello, I'm using maildirs, and I have problems with big mailboxes (~ 20000 emails, 30-50GB) - sometimes access to such mailbox takes very long (~10 minutes), I would like to be able to create index for mailbox in background, but I couldn't find any way to do it. So far I tried: *doveadm -D -vvv index -u user 'Folder' * But even if this folder have no dovecot.index* files - I always get: doveadm(user): Info: Wersje robocze: Cache is already up to date It seems that doveadm doesn't actually checks if the index is present. The index is created only when I log with IMAP client and check the folder. So i tried: *doveadm mailbox cache purge -u user 'Folder' * No joy either: doveadm(user): Error: Cache is unusable And command below doesn't actually do anything to index: *doveadm -vvv force-resync -u user 'Folder'* Is there any way to use doveadm tool to create/fix index? Shouldn't the index be updated on each email arrival? Cheers, TomekL

5 12

lmtp proxy 'Invalid FROM: Missing domain'
by Marc Roos 06 Dec '19

06 Dec '19

Looks like I have a correct working proxy on pop3. On both backend servers I can run cat /tmp/test.msg | /usr/libexec/dovecot/lmtp Giving 250 2.1.5 OK 354 OK Info: Disconnect from local: Connection closed (in DATA) However if I run the same command on the proxy, I am getting this error 'Invalid FROM: Missing domain'. How is this FROM even relevant if message just needs to be delivered to RCPT TO.

2 2

Sieve redirect does not collect the sendmail child process correctly (Dovecot 2.3.4.1, Pigeonhole 0.5.4)
by Delian Krustev 06 Dec '19

06 Dec '19

Hi, I got this simple test Sieve config: ############################################# # Sieve Filter # Generated by Ingo (http://www.horde.org/apps/ingo/) (11/01/2019, 10:46:06 PM) # Forwards if true { redirect "krustev(a)krustev.net"; } # Forward Keep Action if true { keep; stop; } ############################################# Which used to work fine with: # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 4.9.0-8-amd64 x86_64 Debian 9.11 Then I've tried migrating to: # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-6-amd64 x86_64 Debian 10.1 And started getting the following errors: # cat .dovecot.sieve.log sieve: info: started log at Nov 01 22:55:50. error: msgid=<4221584.AlbrL4BjWX@home>: failed to redirect message to <krustev(a)krustev.net>: Failed to execute sendmail (temporary failure). A google search lead me to: https://bugs.archlinux.org/task/56933 which blames systemd service changes: NoNewPrivileges=true , however I'm not running dovecot via systemd but use DJB's daemontools for service supervision . The page above suggested to change from: sendmail_path = /usr/sbin/sendmail to submission_host = localhost in "conf.d/15-lda.conf", which worked fine. But since I don't have other problems with "sendmail" execution I've decided to debug this further. I have dovecot integrated with Qmail: # apt-cache policy qmail qmail: Installed: 1.06-6+b1 Candidate: 1.06-6+b1 Version table: *** 1.06-6+b1 900 900 http://deb.debian.org/debian buster/main amd64 Packages so sendmail's implementation comes from Qmail: # ls -al `which sendmail` lrwxrwxrwx 1 root root 14 Feb 23 2015 /usr/sbin/sendmail -> qmail-sendmail I've strace-d the qmail-lspawn process which executes dovecot's LDA, which processes the Sieve rules and executes "sendmail". The sendmail process executes and returns successfully, the mail is delivered, however the Sieve code does not wait for the child process correctly and tries to kill the already exited process after 30 seconds timeout. Here are the problematic Sieve syscalls: 22:55:15.283482 execve("/usr/lib/dovecot/deliver", ["/usr/lib/dovecot/deliver", "-e", "-a", "tester(a)krustev.net"], 0x5620b4330c40 /* 61 vars */) = 0 ... 22:55:15.286845 pipe([5, 6]) = 0 22:55:15.286870 fcntl(5, F_GETFL) = 0 (flags O_RDONLY) 22:55:15.286889 fcntl(5, F_SETFL, O_RDONLY|O_NONBLOCK) = 0 22:55:15.286909 fcntl(6, F_GETFL) = 0x1 (flags O_WRONLY) 22:55:15.286928 fcntl(6, F_SETFL, O_WRONLY|O_NONBLOCK) = 0 22:55:15.286947 fcntl(5, F_GETFD) = 0 22:55:15.286966 fcntl(5, F_SETFD, FD_CLOEXEC) = 0 22:55:15.286985 fcntl(6, F_GETFD) = 0 22:55:15.287003 fcntl(6, F_SETFD, FD_CLOEXEC) = 0 22:55:15.287024 epoll_create(128) = 7 22:55:15.287043 fcntl(7, F_GETFD) = 0 22:55:15.287062 fcntl(7, F_SETFD, FD_CLOEXEC) = 0 22:55:15.287084 epoll_ctl(7, EPOLL_CTL_ADD, 5, {EPOLLIN|EPOLLPRI|EPOLLERR|EPOLLHUP, {u32=47201248, u64=94699781110752}}) = 0 ... 22:55:15.294625 epoll_ctl(7, EPOLL_CTL_DEL, 5, 0x7ffd59156b8c) = 0 22:55:15.294647 epoll_create(128) = 12 22:55:15.294668 fcntl(12, F_GETFD) = 0 22:55:15.294687 fcntl(12, F_SETFD, FD_CLOEXEC) = 0 22:55:15.294708 epoll_ctl(12, EPOLL_CTL_ADD, 5, {EPOLLIN|EPOLLPRI|EPOLLERR|EPOLLHUP, {u32=47455536, u64=94699781365040}}) = 0 Dovecot/Sieve will wait for this pipe FD 5 later, but no event will arrive. 22:55:15.294740 rt_sigaction(SIGCHLD, {sa_handler=0x7f15404b3640, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f1540229840}, NULL, 8) = 0 22:55:15.294763 pipe([13, 14]) = 0 22:55:15.294788 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f15401ec2d0) = 6929 The sendmail child process with PID 6929 is forked here. 22:55:15.294928 close(13) = 0 22:55:15.294969 fcntl(14, F_GETFL) = 0x1 (flags O_WRONLY) 22:55:15.295006 fcntl(14, F_SETFL, O_WRONLY|O_NONBLOCK) = 0 22:55:15.295039 lseek(14, 0, SEEK_CUR) = -1 ESPIPE (Illegal seek) 22:55:15.295065 getsockname(14, 0x7ffd59156a40, [28]) = -1 ENOTSOCK (Socket operation on non-socket) 22:55:15.295109 write(14, "EDITTED LONG MESSAGE DATA\n", 1461) = 1461 22:55:15.295150 close(14) = 0 22:55:15.295175 wait4(6929, 0x562102d4fee4, WNOHANG, NULL) = 0 22:55:15.295211 epoll_wait(12, [], 1, 30000) = 0 Here's where the 30 second's timeout is requested and waited. 22:55:45.325580 kill(6929, SIGTERM) = 0 22:55:45.325769 epoll_wait(12, [], 1, 5000) = 0 22:55:50.331108 kill(6929, SIGKILL) = 0 22:55:50.332867 wait4(6929, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 6929 22:55:50.333020 epoll_ctl(12, EPOLL_CTL_DEL, 5, 0x7ffd59156b6c) = 0 22:55:50.333060 epoll_ctl(7, EPOLL_CTL_ADD, 5, {EPOLLIN|EPOLLPRI|EPOLLERR|EPOLLHUP, {u32=47201248, u64=94699781110752}}) = 0 22:55:50.333097 close(12) = 0 22:55:50.333240 sendto(9, "<19>Nov 1 22:55:50 dovecot: lda(krustev)<6926><IlpXEdO3vF0OGwAA4EGeoA>: Error: sieve: msgid=<4221584.AlbrL4BjWX@home>: failed to redirect message to <krustev(a)krustev.net>: Failed to execute sendmail (temporary failure)", 220, MSG_NOSIGNAL, NULL, 0) = 220 22:55:50.333321 openat(AT_FDCWD, "/home/krustev/mail/domains/krustev.net/tester/.dovecot.sieve.log", O_WRONLY|O_CREAT|O_APPEND, 0600) = 12 22:55:50.333557 fstat(12, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 22:55:50.333613 lseek(12, 0, SEEK_CUR) = 0 22:55:50.333643 fstat(12, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 22:55:50.333678 stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=127, ...}) = 0 22:55:50.333726 write(12, "sieve: info: started log at Nov 01 22:55:50.\n", 45) = 45 22:55:50.333788 write(12, "error: msgid=<4221584.AlbrL4BjWX@home>: failed to redirect message to <krustev(a)krustev.net>: Failed to execute sendmail (temporary failure).\n", 141) = 141 22:55:50.333857 sendto(9, "<19>Nov 1 22:55:50 dovecot: lda(krustev)<6926><IlpXEdO3vF0OGwAA4EGeoA>: Error: sieve: Execution of script /home/krustev/mail/domains/krustev.net/tester/.dovecot.sieve was aborted due to temporary failure (user logfile /home/krustev/mail/domains/krustev.net/tester/.dovecot.sieve.log may reveal additional details)", 317, MSG_NOSIGNAL, NULL, 0) = 317 22:55:50.333941 close(10) = 0 22:55:50.333996 close(12) = 0 22:55:50.334057 lstat("/home/krustev/mail/domains/krustev.net/tester/.dovecot.lda-dupes.lock", {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 22:55:50.334095 unlink("/home/krustev/mail/domains/krustev.net/tester/.dovecot.lda-dupes.lock") = 0 22:55:50.334188 close(11) = 0 22:55:50.334245 write(2, "Execution of Sieve filters was aborted due to temporary failure\n", 64) = 64 22:55:50.334418 munmap(0x7f15401bc000, 103680) = 0 22:55:50.334481 munmap(0x7f15403b3000, 32800) = 0 22:55:50.334516 munmap(0x7f15400fb000, 788352) = 0 22:55:50.334610 epoll_ctl(7, EPOLL_CTL_DEL, 8, 0x7ffd5915706c) = 0 22:55:50.334640 close(8) = 0 22:55:50.334685 epoll_ctl(7, EPOLL_CTL_DEL, 5, 0x7ffd5915706c) = 0 22:55:50.334738 close(5) = 0 22:55:50.334785 close(6) = 0 22:55:50.334813 close(7) = 0 22:55:50.334841 close(4) = 0 22:55:50.334881 exit_group(75) = ? 22:55:50.335077 +++ exited with 75 +++ Here's the interesting part of sendmail's (PID 6929) execution with timestamps: .. 22:55:15.295268 execve("/usr/sbin/sendmail", ["/usr/sbin/sendmail", "-i", "-f", "tester(a)krustev.net", "--", "krustev(a)krustev.net"], NULL) = 0 ... 22:55:15.296024 chdir("/var/lib/qmail") = 0 22:55:15.296055 execve("bin/qmail-inject", ["bin/qmail-inject", "-a", "-f", "tester(a)krustev.net", "--", "krustev(a)krustev.net"], 0x55741b1890e0 /* 2 vars */) = 0 ... 22:55:15.297264 vfork() = 6930 .. 22:55:15.297930 wait4(6930, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 6930 22:55:15.305391 exit_group(0) = ? 22:55:15.305472 +++ exited with 0 +++ The PID 6930 is a call to the setuid qmail-queue, which also executes and returns normally. With all the above stated - It seems that the problem is in the "epoll" calls. Either it is not set-up correctly or dovecot-LDA does not receive the information it waits for. I've tried to make my way trough Dovecot's source code but have concluded that someone more familiar should be able to spot the problem much quicker than me. Let me know if you need some additional information. Sorry for the long mail. Dovecot config follows: # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-6-amd64 x86_64 Debian 10.1 # Hostname: pinko.livehostserver.com auth_mechanisms = plain login disable_plaintext_auth = no lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes log_path = /dev/stderr log_timestamp = mail_plugins = " quota" managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace inbox { inbox = yes location = mailbox Archive { special_use = \Archive } mailbox Archives { special_use = \Archive } mailbox "Deleted Items" { special_use = \Trash } mailbox "Deleted Messages" { special_use = \Trash } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox "Junk E-mail" { special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Items" { special_use = \Sent } mailbox "Sent Mail" { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } mailbox sent-mail { special_use = \Sent } prefix = } passdb { args = /usr/local/sbin/vchkpw-dovecot driver = checkpassword } plugin { antispam_allow_append_to_spam = yes antispam_backend = pipe antispam_pipe_program = /bin/sh antispam_pipe_program_notspam_args = -c;HOME=$PWD exec nice sa-learn --ham antispam_pipe_program_spam_args = -c;HOME=$PWD exec nice sa-learn --spam antispam_pipe_tmpdir = /tmp antispam_spam_pattern_ignorecase = spam;junk;junk * antispam_trash_pattern_ignorecase = trash;Deleted * quota = maildir:User quota sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_redirect_envelope_from = recipient } protocols = " imap sieve pop3" service anvil { client_limit = 1536 } service auth { client_limit = 1536 } service imap-login { process_limit = 512 } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 1 service_count = 1 } service managesieve { process_limit = 50 } service pop3-login { process_limit = 512 } service stats { client_limit = 1024 unix_listener stats-writer { mode = 0666 } } ssl_ca = </scm/deb-global/etc/ssl/intermediate-CAs.crt ssl_cert = </etc/ssl/default-fullchain.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = prefetch } protocol lda { info_log_path = log_path = mail_plugins = " quota sieve" } protocol imap { mail_max_userip_connections = 64 mail_plugins = " quota imap_quota antispam" } protocol sieve { mail_max_userip_connections = 10 managesieve_implementation_string = Dovecot Pigeonhole managesieve_max_line_length = 65536 } Best regards -- Delian

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Problem with sievefilter forwarding
by ratatouille 06 Dec '19

06 Dec '19

Hello! dovecot --version 2.2.36 (1f10bfa63) I defined a sievefilter require ["copy"]; # rule:[weiterleitung] if header :contains "to" "user(a)bitclusive.de" { redirect :copy "otheruser(a)gmail.com"; stop; } It doesn't work and I don't know why. I can define a vacationfilter that works fine. Can I debug this somehow and can somebody here explain what is going wrong? Kind regards Andreas

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ACL hide folders
by Peter Chiochetti 06 Dec '19

06 Dec '19

After updating from 2.2.22 to 2.2.33 rsp 2.3.8 my ACLs went bust. Below line in the global acl file hides all folders except INBOX for all users > * group=ALL Next reenable certain folders, eg: > Sent group=ALL lrwsi This made anyone see "Sent" in 2.2.22, but no longer so in 2.2.33 Any ideas how to have it like before? -- peter

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v2.3.9 released
by Aki Tuomi 06 Dec '19

06 Dec '19

Hi all! We are pleased to release v2.3.9 of Dovecot. Please find it from locations below --- Aki Tuomi Open-Xchange oy https://dovecot.org/releases/2.3/dovecot-2.3.9.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.9.tar.gz.sig Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot --- * Changed several event field names for consistency and to avoid conflicts in parent-child event relationships: * SMTP server command events: Renamed "name" to "cmd_name" * Events inheriting from a mailbox: Renamed "name" to "mailbox" * Server connection events have only "remote_ip", "remote_port", "local_ip" and "local_port". * Removed duplicate "client_ip", "ip" and "port". * Mail storage events: Removed "service" field. Use "service:<name>" category instead. * HTTP client connection events: Renamed "host" to "dest_host" and "port" to "dest_port" * auth: Drop Postfix socketmap support. It hasn't been working with recent Postfix versions for a while now. * push-notification-lua: The "subject" field is now decoded to UTF8 instead of kept as MIME-encoded. + push-notification-lua: Added new "from_address", "from_display_name", "to_address" and "to_display_name" fields. The display names are decoded to UTF8. + Added various new fields to existing events. See http://doc.dovecot.net/admin_manual/list_of_events.html + Add lmtp_add_received_header setting. It can be used to prevent LMTP from adding "Received:" headers. + doveadm: Support SSL/STARTTLS for proxied doveadm connections based on doveadm_ssl setting and proxy ssl/tls settings. + Log filters support now "service:<name>", which matches all events for the given service. It can also be used as a category. + lib: Use libunwind to get abort backtraces with function names where available. + lmtp: When the LMTP proxy changes the username (from passdb lookup) add an appropriate ORCPT parameter. - lmtp: Add lmtp_client_workarounds setting to implement workarounds for clients that send MAIL and RCPT commands with additional spaces before the path and for clients that omit <> brackets around the path. See example-config/conf.d/20-lmtp.conf. - lda/lmtp: Invalid MAIL FROM addresses were rejcted too aggressively. Now mails from addresses with unicode characters are delivered, but their Return-Path header will be <> instead of the given MAIL FROM address. - lmtp: The lmtp_hdr_delivery_address setting is ignored. - imap: imap_command_finished event's "args" and "human_args" parameters were always empty. - mbox: Seeking in zlib and bzip2 compressed input streams didn't work correctly. - imap-hibernate: Process crashed when client got destroyed while it was attempted to be unhibernated, and the unhibernation fails. - *-login: Proxying may have crashed if SSL handshake to the backend failed immediately. This was unlikely to happen in normal operation. - *-login: If TLS handshake to upstream server failed during proxying, login process could crash due to invalid memory access. - *-login: v2.3 regression: Using SASL authentication without initial response may have caused SSL connections to hang. This happened often at least with PHP's IMAP library. - *-login: When login processes are flooded with authentication attempts it starts logging errors about "Authentication server sent unknown id". This is still expected. However, it also caused the login process to disconnect from auth server and potentially log some user's password in the error message. - dict-sql: SQL prepared statements were not shared between sessions. This resulted in creating a lot of prepared statements, which was especially inefficient when using Cassandra backend with a lot of Cassandra nodes. - auth: auth_request_finished event didn't have success=yes parameter set for successful authentications. - auth: userdb dict - Trying to list users crashed. - submission: Service could be configured to allow anonymous authentication mechanism and anonymous user access. - LAYOUT=index: Corrupted dovecot.list.index caused folder creation to panic. - doveadm: HTTP server crashes if request target starts with double "/". - dsync: Remote dsync started hanging if the initial doveadm "dsync-server" command was sent in the same TCP packet as the following dsync handshake. v2.3.8 regression. - lib: Several "input streams" had a bug that in some rare situations might cause it to access freed memory. This could lead to crashes or corruption. The only currently known effect of this is that using zlib plugin with external mail attachments (mail_attachment_dir) could cause fetching the mail to return a few bytes of garbage data at the beginning of the header. Note that the mail wasn't saved corrupted, but fetching it caused corrupted mail to be sent to the client. - lib-storage: If a mail only has quoted content, use the quoted text for generating message snippet (IMAP PREVIEW) instead of returning empty snippet. - lib-storage: When vsize header was rebuilt, newly calculated message sizes were added to dovecot.index.cache instead of being directly saved into vsize records in dovecot.index. - lib: JSON generator was escaping UTF-8 characters unnecessarily.

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[2.3.8] possible replication issue
by Carsten Rosenberg 06 Dec '19

06 Dec '19

Hi, some of our customers have discovered a replication issue after upgraded from 2.3.7.2 to 2.3.8. Running 2.3.8 several replication connections are hanging until defined timeout. So after some seconds there are $replication_max_conns hanging connections. Other replications are running fast and successful. Also running a doveadm sync tcp:... is working fine for all users. I can't see exactly, but I haven't seen mailboxes timeouting again and again. So I would assume it's not related to the mailbox. >From the logs: server1: Oct 16 08:29:25 server1 dovecot[5715]: dsync-local(username1(a)domain.com)<FXnVDW22pl0tGAAA1cwDxA>: Error: dsync(172.16.0.1): I/O has stalled, no activity for 600 seconds (version not received) Oct 16 08:29:25 server1 dovecot[5715]: dsync-local(username1(a)domain.com)<FXnVDW22pl0tGAAA1cwDxA>: Error: Timeout during state=master_recv_handshake server2: Oct 16 08:29:25 server2 dovecot[8113]: doveadm: Error: read(server1) failed: EOF (last sent=handshake, last recv=handshake) There aren't any additional logs regarding the replication. I have tried increasing vsz_limit or reducing replication_max_conns. Nothing changed. -- Both customers have 10k+ users. Currently I couldn't reproduce this on smaller test systems. Both installation were downgraded to 2.3.7.2 to fix the issue for now -- I've attached a tcpdump showing the client showing the client stops sending any data after the mailbox_guid table headers. Any idea what could be wrong here or the debug this issue? Thanks. Carsten Rosenberg

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