- dovecot - dovecot.org

Importing Mail
by Odhiambo Washington 24 Sep '20

24 Sep '20

Hi good people, I have an old server that holds old mail (mdbox) and a new server that also uses mdbox. I'd like to import the old mail from the old server into the live/new server. The imported mail should not be treated as new mail for the existing mail accounts. What is the best way to achieve this? Lastly, is there a way to convert mdbox to Maildir? -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254 7 3200 0004/+254 7 2274 3223 "Oh, the cruft.", grep ^[^#] :-)

2 2

Vacation sieve explained: how does it work?
by Graham Leggett 24 Sep '20

24 Sep '20

Hi all, I have a legacy system that uses gnarwl to handle vacation messages, most specifically the vacation messages are stored in LDAP. We have a web based tool that allows people to update their vacation message, all they’re doing is modifying LDAP. I am trying to find out if dovecot’s vacation sieve can do the same thing. I am struggling however to find something that describes to me how dovecot vacation sieve is configured. Is there a howto or walkthrough anywhere? Specific burning questions: - If I was to configure the dovecot vacation sieve, where is the body of each vacation message stored? File on disk? In a store like an LDAP store? Somewhere else? - How is the body of vacation message modified? Does this happen through the IMAP protocol, a command line tool, something else? - How is the vacation message switched on and off? Does this happen through the IMAP protocol, a command line tool, or something else? The docs at https://wiki2.dovecot.org/Pigeonhole/Sieve/Extensions/Vacation describe how to control how often the vacation messages are sent, but very little else. I am very confused :( Regards, Graham —

4 8

BUG: _presence_ of valid openssl.cnf Option = 'ServerPreference' causes Dovecot submission relay FAIL: "failed: Failed to initialize SSL: ..."
by PGNet Dev 24 Sep '20

24 Sep '20

I've dovecot --version 2.3.10.1 (a3d0e1171) openssl version OpenSSL 1.1.1g FIPS 21 Apr 2020 , atm on Fedora32. I configure /etc/pki/tls/openssl.cnf to set preferences for apps' usage, e.g. Postfix etc; Typically, here cat /etc/pki/tls/openssl.cnf openssl_conf = default_conf [default_conf] ssl_conf = ssl_sect [ssl_sect] system_default = system_default_sect [system_default_sect] MinProtocol = TLSv1.2 Ciphersuites = TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384:TLS_AES_128_GCM_SHA256 CipherString = ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256 Options = PrioritizeChaCha,ServerPreference However, any/all sends from local client via Dovecot submission -- from an instance on the same server -- FAILS with that^^ openssl.cnf, ==> /var/log/dovecot/dovecot.log <== ... 2020-08-24 17:04:42 submission(testuser(a)example.com)<D4c5c6itUg2sHgsH>: Error: smtp-client: conn int.mx.example.net:465 (10.0.4.65:465) [1]: connect(int.mx.example.net:465) failed: Failed to initialize SSL: Couldn't initialize SSL context: Can't load SSL certificate: error:14187180:SSL routines:ssl_do_config:bad value: section=system_default, cmd=Options, arg=ServerPreference,PrioritizeChaCha 2020-08-24 17:04:42 submission(testuser(a)example.com)<D4c5c6itUg2sHgsH>: Error: Failed to establish relay connection: Failed to connect to remote server ... editing, - Options = PrioritizeChaCha,ServerPreference + Options = PrioritizeChaCha cures the error ==> /var/log/dovecot/dovecot.log <== ... 2020-08-24 17:08:04 submission(testuser(a)example.com)<Uow+f6itZg2sHgsH>: Info: Successfully relayed message: from=<testuser(a)example.com>, size=433, id=Mh4pJWRWRF9jHQAAVDn7pA, nrcpt=1, reply=`250 2.0.0 Ok: queued as 4Bb8TJ4VQbz7v6t' ... checking ssl docs https://www.openssl.org/docs/man1.1.1/man3/SSL_CONF_cmd.html BOTH are valid 'Options', ... ServerPreference: use server and not client preference order when determining which cipher suite, signature algorithm or elliptic curve to use for an incoming connection. Equivalent to SSL_OP_CIPHER_SERVER_PREFERENCE. Only used by servers. PrioritizeChaCha: prioritizes ChaCha ciphers when the client has a ChaCha20 cipher at the top of its preference list. This usually indicates a mobile client is in use. Equivalent to SSL_OP_PRIORITIZE_CHACHA. Only used by servers. ... The mere presence of that option in a system-wide openssl.cnf shouldn't cause a Dovecot submission failure.

2 7

At a loss with antispan and imap_sieve
by Ferenc 24 Sep '20

24 Sep '20

Hi, It seems I can’t google my way out of this one. I’m trying to set up spam/ham learning but getting nowhere. I tried Johannes Berg Antispam plugin, and syslog shows: Sep 20 22:22:06 proefmail imap: antispam: running mailtrain backend program /usr/lib/dovecot/retrain.sh Sep 20 22:22:06 proefmail imap: antispam: running mailtrain backend program /usr/lib/dovecot/retrain.sh Sep 20 22:22:06 proefmail imap: antispam: running mailtrain backend program parameter 1 /mail/klaas Sep 20 22:22:06 proefmail imap: antispam: running mailtrain backend program parameter 2 ham The file retrain.sh is simply: #!/bin/sh echo hi >> debug.log ...with debug.log being an empty world-writeable file in /usr/lib/dovecot. Absolutely nothing happens. The file debug.log is not even touched. But when I remove retrain.sh there’s an error logged so up until then, *something* happens. After this I tried imap_sieve, following the wiki on dovecot.org, but again nothing happens. My imap.log says: Info: sieve: pipe action: piped message to program `retrain.sh’ But again debug.log is untouched. I’m fresh out of ideas here. Any help would be most welcome. I’m on Debian in virtual machine, Postfix delivering mail to Dovecot LMTP delivering to virtual maildirs, bogofilter for scanning incoming mail. Sieve does work for moving incoming spam to the spam mailbox. Cheers and thanks, Ferenc

3 6

implementing folder hashing
by Adrian Minta 23 Sep '20

23 Sep '20

Hi everyone, I want to ask if any of you has done a migration from a single storage to multiple back-end storages and what is the best strategy for folder hashing that you use. Using something like %H or %M how do you predict where the mail will end up in order to move the existing folders ? Thank you ! -- Best regards, Adrian Minta

2 4

Dovecot SASL
by Jorge Bastos 22 Sep '20

22 Sep '20

Howdy, I know i've asked this before, but i think i got really no answer. I'd like to have dovecot SASL, to check AUTH against an SQL table, instead of dovecot SASL use the AUTH MECH for imap/pop3. I want this, to have the same behavior as I have now, where i use postfix with cyrus SASL on a different table (with the same login details), and when i have an user that his accounts was hacked for sending spam, i just block the send and allow the user to keep receiving emails, for example to warn him. Would this be possible? Dovecot SASL against a SQL table? Havent found much info about it, Thanks in advanced,

2 2

Re: Leaked Events
by bobby 22 Sep '20

22 Sep '20

Is this an affected version of the bug? > 2.3.8 (9df20d2db) > > On Tue, Sep 8, 2020 at 12:42 PM Stephan Bosch <stephan(a)rename-it.nl> > wrote: > >> >> >> On 08/09/2020 18:01, bobby wrote: >> > I am going through my maillog file, and noticed these events: >> > >> > Sep 8 15:56:17 mail dovecot[294462]: lmtp(391257): Warning: Event >> > 0x55db5bc41200 leaked (parent=0x55db5bc3b830): >> mail-storage-service.c:1325 >> > Sep 8 15:56:17 mail dovecot[294462]: lmtp(391257): Warning: Event >> > 0x55db5bc3b830 leaked (parent=0x55db5bc34450): >> smtp-server-recipient.c:38 >> > Sep 8 15:56:17 mail dovecot[294462]: lmtp(391257): Warning: Event >> > 0x55db5bc34450 leaked (parent=0x55db5bc34130): connection.c:523 >> > Sep 8 15:56:17 mail dovecot[294462]: lmtp(391257): Warning: Event >> > 0x55db5bc34130 leaked (parent=0x55db5bc20ce0): >> > smtp-server-connection.c:773 >> > Sep 8 15:56:17 mail dovecot[294462]: lmtp(391257): Warning: Event >> > 0x55db5bc20ce0 leaked (parent=(nil)): lmtp-client.c:164 >> > >> > Is this something to be concerned about? >> >> Usually, not. >> >> But, it is a bug. What version is this? >> >> Regards, >> >> Stephan. >> >

3 6

FTS Index based on UserDB preference
by Scott Q. 22 Sep '20

22 Sep '20

Does anyone know if it's possible to do FTS Index based on a userdb preference ? Basically if the preference is 'on' , dovecot goes ahead with the fts indexing for that particular user. I'm guessing right now it's not possible but is there anyone that could envision writing such a patch ? If so, can you contact me off-list ?

2 2

[SOLVED]AW: AW: doveadm search segfault Dovecot 2.2.22
by rudolf＠padaru.de 22 Sep '20

22 Sep '20

Dear Aki thank you! With version 2.3.11 of dovecot it works fine. Yours sincerely Pascal Rudolf -----Ursprüngliche Nachricht----- Von: dovecot <dovecot-bounces(a)dovecot.org> Im Auftrag von Aki Tuomi Gesendet: Montag, 21. September 2020 17:37 An: rudolf(a)padaru.de; Dovecot Mailing List <dovecot(a)dovecot.org> Betreff: Re: AW: doveadm search segfault Dovecot 2.2.22 > On 21/09/2020 15:14 rudolf(a)padaru.de wrote: > > > Hey, > > i am now a bit deeper into dovecot debugging with gdb and have a full bt now, with debugging infos. > > Is there a patch that resolve this Problem in dovecot 2.2.22-1ubuntu2.13 for ubuntu 16? > > Here the bt: > Hi! We don't really support 2.2.22 since it was released several years ago. Please try to reproduce this issue with 2.2.36 or 2.3.11. You can find packages for 2.3.11 from https://repo.dovecot.org Aki

1 0

Default sieve mark seen?
by ＠lbutlr 22 Sep '20

22 Sep '20

I have the following in my default.sieve file: require "fileinto"; if header :contains "X-spam-flag" "YES" { require ["vnd.dovecot.pipe", "copy", "imapsieve", "environment", "variables", "imap4flags"]; setflag "\\Seen"; fileinto "Junk"; } This is largely unchanged, except that I added imap4flags and set flag "\\Seen"; recently. The messages still get filed into the user's Junk folder, but they are still marked as unread. I also have imapsieve_mailbox3_name = Archive imapsieve_mailbox3_causes = COPY imapsieve_mailbox3_before = file:/usr/lib/dovecot/sieve/mark-read.sieve # cat /usr/lib/dovecot/sieve/mark-read.sieve require ["imap4flags"]; setflag "\\seen"; Which works fine. How do I fix this? -- "The female of all species are most dangerous when they appear to retreat." - Don Marquis

2 2

Dovecot virtual folders usage: seen in Tbird client if subscribed, treated as _real_ folders -- and archived to local/offline storage? How to prevent?
by PGNet Dev 22 Sep '20

22 Sep '20

i run a dovecot v2.3.10 server. config includes virtual folders, dovecot.conf mail_plugins = virtual mail_location = maildir:/data/mail/%d/%n/Maildir:LAYOUT=fs:UTF-8 imap_capability = +SPECIAL-USE namespace inbox { inbox = yes type = private separator = / prefix = hidden = no list = yes subscriptions = yes ... mailbox virtual/All { special_use = \All auto = no comment = All } mailbox virtual/Flagged { special_use = \Flagged auto = no comment = Flagged } ... } namespace virtual { prefix = virtual/ separator = / location = virtual:/data/mail/virtual:INDEX=MEMORY hidden = no list = yes subscriptions = yes } and /data/mail/virtual/All/dovecot-virtual * -Trash -Trash/* All /data/mail/virtual/Flagged/dovecot-virtual * Flagged in Thunderbird client, without subscribing to the virtula folders, per account, they're undisplayed/inaccessible. if I select 'subscriptions', virtual All [X] Flagged [X] I see the aggregated/flagged messages. When I sync for offline usage, TBird copies messages to local storage for offline use, as expected but it ALSO *copies* all the 'virtual' messages to dirs in the local store cd ImapMail/user001-maildir tree -L 1 -d virtual.sbd/ virtual.sbd/ ├── All <========== └── Flagged <========== **DUPLICATING** messages stored in BOTH the parent/original dirs, AND a second copy in the Virtual dir. What needs to be done in order to see/use the subscribed Virtual folders in TBird enable Offline Sync/Storage & PREVENT the duplication and local storage of the 'virtual' mail instances ?

1 0

extra fields question
by joao＠7lan.net 21 Sep '20

21 Sep '20

Hi, I'm trying to configure the use of plugins per user in dovecot, more specifically, fts and fts_solr. It happen to have other necessary plugins per protocol, for example "imap_quota" which would be specifically for the imap protocol and which does not apply for the lmtp protocol. For this I need to specify that for the imap protocol I have: protocol imap { mail_plugins = quota imap_quota zlib imap_sieve mail_log notify } and for the lmtp protocol I have: protocol lmtp { mail_plugins = quota zlib fts fts_solr sieve } I did it according to the "extra fields" documentation and separated the name and key with /. My queries are correct but are not being applied to dovecot. Then in the case when the user has fts fts_solr he returns: procotol/imap/mail_plugins -> quota imap_quota zlib imap_sieve mail_log notify fts fts_solr procotol/lmtp/mail_plugins -> quota zlib sieve fts fts_solr but it does not work. Doing it for "mail_plugins" (without accessing config levels) extra fields works, but it also enable some plugins that are not compatible with some protocols. I thought about separating an instance of dovecot lmtp on the same server, but I would like a more direct configuration in the same instance. Does anyone have experience with this? Thanks in advance.

2 1

AW: doveadm search segfault Dovecot 2.2.22
by rudolf＠padaru.de 21 Sep '20

21 Sep '20

Hey, i am now a bit deeper into dovecot debugging with gdb and have a full bt now, with debugging infos. Is there a patch that resolve this Problem in dovecot 2.2.22-1ubuntu2.13 for ubuntu 16? Here the bt: (gdb) bt full #0 0x00007ffff73cf3f3 in array_count_i (array=0x555555810d38) at ../../src/lib/array.h:155 No locals. #1 message_part_finish (ctx=ctx@entry=0x555555810ce0) at message-parser.c:227 __FUNCTION__ = "message_part_finish" #2 0x00007ffff73d132c in message_parser_parse_next_block (ctx=0x555555810ce0, block_r=block_r@entry=0x7fffffffdc40) at message-parser.c:1244 ret = <optimized out> eof = false full = false __FUNCTION__ = "message_parser_parse_next_block" #3 0x00007ffff73d2218 in message_search_msg_real (error_r=0x7fffffffdca0, parts=<optimized out>, input=0x5555558159c0, ctx=0x55555580a870) at message-search.c:217 new_parts = 0x7fffffffdd50 ret = <optimized out> parser_ctx = 0x555555810ce0 raw_block = {part = 0x55555580cc50, hdr = 0x0, data = 0x0, size = 0} #4 message_search_msg (ctx=ctx@entry=0x55555580a870, input=0x5555558159c0, parts=<optimized out>, error_r=error_r@entry=0x7fffffffdca0) at message-search.c:244 _data_stack_cur_id = 6 error = <optimized out> ret = 1 #5 0x00007ffff7705c2f in search_body (arg=0x5555557ec948, ctx=0x7fffffffdd30) at index-search.c:649 msg_search_ctx = 0x55555580a870 error = 0x7fffffffdd40 "0ˀUUU" ret = <optimized out> __FUNCTION__ = "search_body" #6 0x00007ffff7690345 in mail_search_args_foreach (args=0x5555557ec948, args@entry=0x5555557ec8b0, callback=callback@entry=0x7ffff7705ba0 <search_body>, context=context@entry=0x7fffffffdd30) at mail-search.c:440 result = 1 #7 0x00007ffff7705870 in search_arg_match_text (ctx=0x55555580c0a0, args=0x5555557ec8b0) at index-search.c:779 hdr_parser_flags = MESSAGE_HEADER_PARSER_FLAG_CLEAN_ONELINE real_mail = 0x55555580c320 headers = <optimized out> hdr_ctx = {index_ctx = 0x55555580c0a0, imail = 0x55555580c320, args = 0x5555557ec8b0, decoded_block = {part = 0x0, hdr = 0x0, data = 0x0, size = 0}, decoded_block_set = false, hdr = 0x55555580a7e0, parse_headers = 0, custom_header = 0, threading = 0} body_ctx = {index_ctx = 0x55555580c0a0, input = 0x5555558159c0, part = 0x55555580cb30} have_headers = true have_body = true ret = <optimized out> imail = 0x55555580c320 input = 0x5555558159c0 headers_ctx = 0x0 failed = false #8 search_match_once (ctx=0x55555580c0a0) at index-search.c:1329 ctx = 0x55555580c0a0 ret = <optimized out> #9 0x00007ffff77078c1 in search_match_next (ctx=0x55555580c0a0) at index-search.c:1434 _data_stack_cur_id = 5 i = 2 n = 3 ret = <optimized out> #10 search_more_with_mail (mail=0x55555580c320, ctx=0x55555580c0a0) at index-search.c:1547 _data_stack_cur_id = 4 _ctx = 0x55555580c0a0 box = 0x5555557fc530 match = -1 ret = -1 imail = 0x55555580c320 cost1 = 3218534 #11 search_more_with_prefetching (mail_r=0x7fffffffde90, ctx=0x55555580c0a0) at index-search.c:1628 ---Type <return> to continue, or q <return> to quit--- _data_stack_cur_id = 3 count = <optimized out> ret = <optimized out> mail = 0x55555580c320 #12 search_more (ctx=ctx@entry=0x55555580c0a0, mail_r=mail_r@entry=0x7fffffffde90) at index-search.c:1700 imail = <optimized out> ret = <optimized out> #13 0x00007ffff7707fc4 in index_storage_search_next_nonblock (_ctx=0x55555580c0a0, mail_r=0x7fffffffdf58, tryagain_r=0x7fffffffdf07) at index-search.c:1728 mail = 0x5555557e4ce0 seq = 0 ret = <optimized out> #14 0x00007ffff7696ba2 in mailbox_search_next_nonblock (ctx=0x55555580c0a0, mail_r=0x7fffffffdf58, tryagain_r=<optimized out>) at mail-storage.c:1784 box = <optimized out> #15 0x00007ffff7696c0f in mailbox_search_next (ctx=0x55555580c0a0, mail_r=mail_r@entry=0x7fffffffdf58) at mail-storage.c:1769 tryagain = false #16 0x00005555555809d2 in doveadm_mail_iter_next (iter=<optimized out>, mail_r=mail_r@entry=0x7fffffffdf58) at doveadm-mail-iter.c:154 No locals. #17 0x00005555555839dd in cmd_search_box (info=<optimized out>, ctx=0x5555557e9800) at doveadm-mail-search.c:36 iter = 0x5555557fbb60 box = <optimized out> ret = 0 mail = 0x0 metadata = {guid = "\242\n\337\066\322|c_\330\004\000\000\303B(\247", virtual_size = 0, physical_size = 0, first_save_date = 0, cache_fields = 0x0, precache_fields = (unknown: 0), backend_ns_prefix = 0x0, backend_ns_type = (unknown: 0)} guid_str = 0x5555557da3f0 "a20adf36d27c635fd8040000c34228a7" #18 cmd_search_run (ctx=0x5555557e9800, user=<optimized out>) at doveadm-mail-search.c:61 _data_stack_cur_id = 2 iter = 0x5555557f3ed0 info = <optimized out> ret = <optimized out> #19 0x000055555557acef in doveadm_mail_next_user (ctx=ctx@entry=0x5555557e9800, cctx=cctx@entry=0x7fffffffe0f0, error_r=error_r@entry=0x7fffffffe0e8) at doveadm-mail.c:400 input = {module = 0x0, service = 0x5555555afc11 "doveadm", username = 0x5555557d8360 "m056e04b", session_id = 0x0, session_id_prefix = 0x0, local_ip = {family = 0, u = {ip6 = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, remote_ip = {family = 0, u = {ip6 = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, local_port = 0, remote_port = 0, userdb_fields = 0x0, flags_override_add = (unknown: 0), flags_override_remove = (unknown: 0), no_userdb_lookup = 0} error = 0x12830 <error: Cannot access memory at address 0x12830> ip = <optimized out> ret = <optimized out> __FUNCTION__ = "doveadm_mail_next_user" #20 0x000055555557b78d in doveadm_mail_single_user (ctx=ctx@entry=0x5555557e9800, cctx=cctx@entry=0x7fffffffe0f0, error_r=error_r@entry=0x7fffffffe0e8) at doveadm-mail.c:431 __FUNCTION__ = "doveadm_mail_single_user" #21 0x000055555557b876 in doveadm_mail_cmd_exec (ctx=ctx@entry=0x5555557e9800, wildcard_user=wildcard_user@entry=0x0) at doveadm-mail.c:594 cctx = {cmd = 0x0, argc = 0, argv = 0x0, username = 0x5555557d8360 "m056e04b", cli = false, local_ip = {family = 0, u = {ip6 = {__in6_u = { __u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, remote_ip = {family = 0, u = {ip6 = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, local_port = 0, remote_port = 0} ret = <optimized out> error = 0x7ffff73dc07d <buffer_alloc+45> "\200K0\001H\211C\020H\211k H\211\003H\203\304\b[]\303\017\037D" #22 0x000055555557c5b6 in doveadm_cmd_ver2_to_mail_cmd_wrapper (cctx=0x7fffffffe320) at doveadm-mail.c:1010 mctx = 0x5555557e9800 wildcard_user = <optimized out> fieldstr = 0x5555557df41b "Hallo" i = <optimized out> mail_cmd = {alloc = 0x555555583890 <cmd_search_alloc>, name = 0x5555555b1e54 "search", usage_args = 0x5555555b1e88 "[-u <user>|-A] [-S <socket_path>] <search query>"} #23 0x000055555558a165 in doveadm_cmd_run_ver2 (argc=argc@entry=7, argv=argv@entry=0x5555557df3a0, cctx=cctx@entry=0x7fffffffe320) at doveadm-cmd.c:519 ---Type <return> to continue, or q <return> to quit---quit Quit (gdb) quit Von: rudolf(a)padaru.de <rudolf(a)padaru.de> Gesendet: Donnerstag, 17. September 2020 17:28 An: 'Dovecot Mailing List' <dovecot(a)dovecot.org> Betreff: doveadm search segfault Dovecot 2.2.22 Good Evening, i have a serius problem by usung the search function via imap or via doveadm. If i run this command: doveadm search -u <user> mailbox INBOX text 'Hello' I receive this line in my maillog: dovecot: imap(<user>): Fatal: master: service(imap): child 7472 killed with signal 11 (core dumped) in my /var/log/apport.log i can see this: ERROR: apport (pid 17785) Thu Sep 17 17:19:01 2020: called for pid 17777, signal 11, core limit 0, dump mode 1 ERROR: apport (pid 17785) Thu Sep 17 17:19:01 2020: executable: /usr/bin/doveadm (command line "doveadm search -u <user> mailbox INBOX text Hello") ERROR: apport (pid 17785) Thu Sep 17 17:19:01 2020: is_closing_session(): no DBUS_SESSION_BUS_ADDRESS in environment ERROR: apport (pid 17785) Thu Sep 17 17:19:01 2020: this executable already crashed 2 times, ignoring A ‘gdb $(cat ExecutablePath) CoreDump‘ from the unpackes dumpe show this: GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1 Copyright (C) 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/bin/doveadm...(no debugging symbols found)...done. [New LWP 1441] Core was generated by `doveadm search -u <user> mailbox INBOX text Hello'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007fb4da1f83f3 in ?? () from /usr/lib/dovecot/libdovecot.so.0 A doveconf -n show this output: # 2.2.22 (fe789d2): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.13 (7b14904) # OS: Linux 4.15.0-117-generic x86_64 Ubuntu 16.04.7 LTS auth_mechanisms = plain login auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@üÜöÖäÄ auth_worker_max_count = 60 disable_plaintext_auth = no imap_capability = +XLIST imap_logout_format = in=%i out=%o del=%{deleted} fetched_mails=%{fetch_hdr_count} lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lock_method = flock login_greeting = <myServer> mailserver ready. login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c mail_cache_min_mail_count = 30 mail_location = auto: mail_max_userip_connections = 30 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext editheader imapflags notify vnd.dovecot.pipe vnd.dovecot.filter vnd.dovecot.execute mbox_read_locks = dotlock mbox_very_dirty_syncs = yes mdbox_rotate_size = 250 M namespace inbox { inbox = yes location = mailbox Archiv { auto = no special_use = } mailbox Drafts { auto = no special_use = } mailbox Junk { auto = no special_use = } mailbox Sent { auto = no special_use = } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { auto = no special_use = } prefix = } passdb { args = /etc/dovecot/conf.d/zDovecot-sql.conf.ext driver = sql } plugin { sieve = ~/sieve/.dovecot.sieve sieve_after = ~/sieve_after/.dovecot_after.sieve sieve_before = ~/sieve_before/.dovecot_before.sieve sieve_dir = ~/sieve sieve_execute_bin_dir = /usr/local/bin/ sieve_execute_input_eol = lf sieve_extensions = +notify +imapflags +vnd.dovecot.pipe +vnd.dovecot.filter +vnd.dovecot.execute +editheader -reject sieve_filter_bin_dir = /usr/local/bin/ sieve_filter_input_eol = lf sieve_global_dir = /etc/dovecot/sieve/ sieve_max_redirects = 25 sieve_pipe_bin_dir = /usr/local/bin/ sieve_pipe_input_eol = lf sieve_plugins = sieve_extprograms sieve_redirect_envelope_from = recipient zlib_save = gz zlib_save_level = 6 } protocols = imap pop3 sieve service auth-worker { idle_kill = 1 mins } service auth { idle_kill = 1 mins unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } service imap-login { executable = /usr/lib/dovecot/imap-login process_min_avail = 4 service_count = 0 user = dovecot } service imap { process_limit = 1024 } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 0 user = dovecot } service managesieve { process_limit = 1024 user = dovecot } service pop3-login { executable = /usr/lib/dovecot/pop3-login process_min_avail = 4 service_count = 0 user = dovecot } service pop3 { executable = /usr/lib/dovecot/pop3 process_limit = 1024 } shutdown_clients = no ssl_ca = </etc/apache2/zertifikate/*.<myServer>.pem ssl_cert = </etc/apache2/zertifikate/*.<myServer>.pem ssl_cipher_list = ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:!DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA ssl_dh_parameters_length = 2048 ssl_key = </etc/apache2/zertifikate/*.<myServer>.pem ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv3 userdb { args = /etc/dovecot/conf.d/zDovecot-sql.conf.ext driver = sql } verbose_proctitle = yes protocol lda { mail_plugins = " sieve zlib" rejection_reason = Your message to <%t> was automatically discarded:%n%r } protocol imap { imap_client_workarounds = delay-newmail mail_plugins = " mail_log notify zlib" ssl = yes } protocol pop3 { mail_plugins = zlib pop3_client_workarounds = oe-ns-eoh outlook-no-nuls pop3_no_flag_updates = no pop3_uidl_format = %08Xu%08Xv ssl = yes } What surprises me is that this problem only occurs with a text search in the inbox, I search in other mailboxes or only in the header this problem does not occur. Can anyone give me a tip on how I can solve this problem without upgrading to 2.33? Mit freundlichen Grüßen Yours sincerely <https://padaru.de/> Pascal Rudolf | Geschäftsführer PADARU-IT | Bielebohstraße 10 | 02736 Beiersdorf @: <mailto:rudolf@padaru.de> rudolf(a)padaru.de | www: <http://padaru.de/> padaru.de mobil: +49 (0) 17 772 595 32

2 1

migrations from 2.2.36
by Maciej Milaszewski 21 Sep '20

21 Sep '20

Hi I started migrations dovecot cluster from 2.2.36.4 (debian) to 2.3.8 (cetos8) .I read https://wiki2.dovecot.org/Upgrading/2.3 In 10-director.conf I must disable director_doveadm_port like: #director_doveadm_port = 2424 and add: ..... service doveadm { inet_listener { port = 2424 } } Is this correct ? the rest of the contents of the file service director { unix_listener login/director { mode = 0666 } fifo_listener login/proxy-notify { mode = 0666 } unix_listener director-userdb { mode = 0600 } inet_listener { port = 9090 } } service imap-login { executable = imap-login director } service pop3-login { executable = pop3-login director } # Enable director for LMTP proxying: protocol lmtp { auth_socket_path = director-userdb } service managesieve-login { executable = managesieve-login director } protocol doveadm { auth_socket_path=director-userdb }

1 0

auth_passdb_request_finished request fires twice on IMAP login
by Eirik Rye 21 Sep '20

21 Sep '20

Hi, Dovecot v2.3.11.3 (502c39af9) auth_passdb_request_finished appears to fire twice for an IMAP login using a Redis passdb. auth_request_finished only fires once. In the debug log below, the line "Finished passdb lookup" appears to be logged twice (once by "auth" and once by "auth-worker"). However, the actual passdb lookup against Redis is only performed once. This is confirmed by monitoring queries made against Redis. Configuration: -------------- metric auth_passdb_request_finished { event_name = auth_passdb_request_finished } auth_debug = yes passdb { auth_verbose = yes override_fields = proxy=y name = redis driver = dict args = /etc/dovecot/dovecot-redis.conf.ext } -------------- With the above configuration, I am seeing the auth_passdb_request_finished metric being incremented twice for every successful login: -------------- / # doveadm stats dump metric_name field count sum min max avg median stddev %95 auth_passdb_request_finished duration 0 0 0 0 0.00 0 0.00 0 / # curl imap://localhost -u foo:bar -XNOOP / # doveadm stats dump metric_name field count sum min max avg median stddev %95 auth_passdb_request_finished duration 2 20327 6240 14087 10163.50 10163 3923.50 14087 -------------- This is the (anonymized) debug output emitted for the above commands: -------------- Sep 19 15:03:32 auth: Debug: client in: AUTH 1 PLAIN service=imap secured session=msC166uvOL0K9HPG lip=127.0.0.1 rip=127.0.0.1 lport=143 rport=48440 resp=<hidden> Sep 19 15:03:32 auth: Debug: redis(foo,127.0.0.1,<msC166uvOL0K9HPG>): Performing passdb lookup Sep 19 15:03:32 auth-worker(76): Debug: conn unix:auth-worker (pid=30,uid=90): auth-worker<3>: Handling PASSV request Sep 19 15:03:32 auth-worker(76): Debug: redis(foo,127.0.0.1,<msC166uvOL0K9HPG>): Performing passdb lookup Sep 19 15:03:32 auth-worker(76): Debug: redis(foo,127.0.0.1,<msC166uvOL0K9HPG>): Lookup: shared/users/foo = {"user":"foo","password":"{SHA256-CRYPT}[...]","host":"other_host","uid":1000,"home":"\/mail\/foo"} Sep 19 15:03:32 auth-worker(76): Debug: redis(foo,127.0.0.1,<msC166uvOL0K9HPG>): Finished passdb lookup Sep 19 15:03:32 auth-worker(76): Debug: conn unix:auth-worker (pid=30,uid=90): auth-worker<3>: Finished Sep 19 15:03:32 auth: Debug: redis(foo,127.0.0.1,<msC166uvOL0K9HPG>): Finished passdb lookup Sep 19 15:03:32 auth: Debug: auth(foo,127.0.0.1,<msC166uvOL0K9HPG>): Auth request finished Sep 19 15:03:32 auth: Debug: client passdb out: OK 1 user=foo proxy host=other_host uid=1000 home=/mail/foo hostip=127.0.0.2 pass=<hidden> -------------- Best regards, Eirik

2 1

lmtp multiple mailboxes
by Janis 20 Sep '20

20 Sep '20

Hello, What would be the best way to implement "deliver mail to multiple maildirs" through LMTP in Dovecot? Like in Postfix virtual_maps. Thank you! Best wishes, Janis

2 1

auth_passdb_request_finished request fires twice on IMAP login
by Eirik Rye 19 Sep '20

19 Sep '20

Hi, Dovecot v2.3.11.3 (502c39af9) auth_passdb_request_finished appears to fire twice for an IMAP login using a Redis passdb. auth_request_finished only fires once. In the debug log below, the line "Finished passdb lookup" appears to be logged twice (once by "auth" and once by "auth-worker"). However, the actual passdb lookup against Redis is only performed once. This is confirmed by monitoring queries made against Redis. Configuration: -------------- metric auth_passdb_request_finished { event_name = auth_passdb_request_finished } auth_debug = yes passdb { auth_verbose = yes override_fields = proxy=y name = redis driver = dict args = /etc/dovecot/dovecot-redis.conf.ext } -------------- With the above configuration, I am seeing the auth_passdb_request_finished metric being incremented twice for every successful login: -------------- / # doveadm stats dump metric_name field count sum min max avg median stddev %95 auth_passdb_request_finished duration 0 0 0 0 0.00 0 0.00 0 / # curl imap://localhost -u foo:bar -XNOOP / # doveadm stats dump metric_name field count sum min max avg median stddev %95 auth_passdb_request_finished duration 2 20327 6240 14087 10163.50 10163 3923.50 14087 -------------- This is the (anonymized) debug output emitted for the above commands: -------------- Sep 19 15:03:32 auth: Debug: client in: AUTH 1 PLAIN service=imap secured session=msC166uvOL0K9HPG lip=127.0.0.1 rip=127.0.0.1 lport=143 rport=48440 resp=<hidden> Sep 19 15:03:32 auth: Debug: redis(foo,127.0.0.1,<msC166uvOL0K9HPG>): Performing passdb lookup Sep 19 15:03:32 auth-worker(76): Debug: conn unix:auth-worker (pid=30,uid=90): auth-worker<3>: Handling PASSV request Sep 19 15:03:32 auth-worker(76): Debug: redis(foo,127.0.0.1,<msC166uvOL0K9HPG>): Performing passdb lookup Sep 19 15:03:32 auth-worker(76): Debug: redis(foo,127.0.0.1,<msC166uvOL0K9HPG>): Lookup: shared/users/foo = {"user":"foo","password":"{SHA256-CRYPT}[...]","host":"other_host","uid":1000,"home":"\/mail\/foo"} Sep 19 15:03:32 auth-worker(76): Debug: redis(foo,127.0.0.1,<msC166uvOL0K9HPG>): Finished passdb lookup Sep 19 15:03:32 auth-worker(76): Debug: conn unix:auth-worker (pid=30,uid=90): auth-worker<3>: Finished Sep 19 15:03:32 auth: Debug: redis(foo,127.0.0.1,<msC166uvOL0K9HPG>): Finished passdb lookup Sep 19 15:03:32 auth: Debug: auth(foo,127.0.0.1,<msC166uvOL0K9HPG>): Auth request finished Sep 19 15:03:32 auth: Debug: client passdb out: OK 1 user=foo proxy host=other_host uid=1000 home=/mail/foo hostip=127.0.0.2 pass=<hidden> -------------- Best regards, Eirik -- Eirik

1 0

Dovecot core-2.3.11.3 compile error on macOS with src/lib/ioloop-notify-kqueue.c
by Steven Smith 19 Sep '20

19 Sep '20

I’ve hit this compile error on macOS 10.15 with the file src/lib/ioloop-notify-kqueue.c: > error: implicit declaration of function 'i_gettimeofday' is invalid in C99 The fix is to #include "time-util.h" > --- ./src/lib/ioloop-notify-kqueue.c 2020-09-18 19:56:38.000000000 -0400 > +++ ./src/lib/ioloop-notify-kqueue.c 2020-09-18 20:54:36.000000000 -0400 > @@ -11,6 +11,7 @@ > > #include "ioloop-private.h" > #include "llist.h" > +#include "time-util.h" > #include <unistd.h> > #include <fcntl.h> > #include <sys/types.h>

1 0

How to use dovecot only as POP3 server / prevent it from creating .imap directories?
by Binarus 18 Sep '20

18 Sep '20

Dear all, on our mail server, I let sendmail deliver incoming messages to a file in mbox format called "inbox" in each user's home directory. Now I would like to use dovecot as POP3 server so that users can let their MUA download their messages via POP3. I do not want to use any IMAP functionality. The POP3 part works with the configuration shown below, but nevertheless there is a problem which is a show stopper: Although I think I have turned off IMAP (e.g. no IMAP listener), dovecot still creates .imap directories and does so in a very weird way. It creates one .imap subdirectory in every subdirectory of each user's home directory, and for every file in each user's home directory creates an additional subdirectory with the same name in its .imap directories. It does this recursively, and 1000 files in a user's home directory would mean 1000 additional subdirectories. Of course, I can't live with that. I know that the dovecot documentation discourages using the home directory as mail location, but in my case this should not be a problem at all if IMAP is not used. I have played around with dovecot for several days, but could not solve that problem. So how can I turn off IMAP completely and prevent dovecot from creating any .imap directories or IMAP related files? This happens with dovecot 2.3.4.1 (f79e8e7e4) on Debian buster (with all updates applied). My configuration (doveconf -n) is (the configuration is complete - I don't use SQL or LDAP): # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-9-amd64 x86_64 Debian 10.4 # Hostname: host.example.com listen = aaa.bbb.ccc.ddd mail_location = mbox:~:INBOX=~/inbox mail_privileged_group = mail namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } pop3_lock_session = yes protocols = " pop3" service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 0 } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 995 ssl = yes } } ssl = required ssl_cert = </etc/dovecot/tls/xxxx.crt ssl_cipher_list = DHE-RSA-AES256-GCM-SHA384 ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_prefer_server_ciphers = yes userdb { driver = passwd } Thank you very much in advance for any idea! Regards, Binarus

4 8

pam dovecot not working with authentication from roundcube
by Ranbir 18 Sep '20

18 Sep '20

Hi Everyone, I made some small changes in my dovecot setup to switch it from looking up users and passwords from a mix of ldap (i.e. freeipa) and password files. One of the changes was to switch from using one id for all authentication to using individual ids) It's working fine with Evolution. I have one account authenticating with GSSAPI, which is my userid for logging into my desktop and for email. The other account in Evolution is logging in using PLAIN and is only used for email (it's shell is set to /sbin/nologin). The problem is with roundcube: I can login with the second, email only account, but my personal ID always errors out. I never use the domain with either one. auth worker: PASSV: pam_sss(dovecot:auth): authentication failure; logname= uid=97 euid=97 tty=dovecot ruser=ranbir rhost=1.2.3.4 user=ranbir auth worker: PASSV: pam_sss(dovecot:auth): received for user ranbir: 17 (Failure setting user credentials) It doesn't matter what user or group I use for unix_listener. If I use 0777 for the mode, I still see the failure and dovecot goes to try the name against the passwd-file, where it obviously fails. This is the pam error: auth-worker(4474): pam(ranbir,1.2.3.4,<oS10hHmv7qkKyAkP>): pam_authenticate() failed: Authentication failure (password mismatch?) What have I misconfigured? Here's the "service auth" section: service auth { chroot = client_limit = 0 drop_priv_before_exec = no executable = auth extra_groups = group = idle_kill = 0 inet_listener { address = 9.8.7.5 haproxy = no port = 17900 reuse_port = no ssl = no } privileged_group = process_limit = 1 process_min_avail = 0 protocol = service_count = 0 type = unix_listener auth-client { group = mode = 0600 user = $default_internal_user } unix_listener auth-login { group = mode = 0600 user = $default_internal_user } unix_listener auth-master { group = mode = 0600 user = } unix_listener auth-userdb { group = mode = 0777 user = $default_internal_user } unix_listener login/login { group = mode = 0666 user = } unix_listener token-login/tokenlogin { group = mode = 0666 user = } user = $default_internal_user vsz_limit = 18446744073709551615 B } Any guidance is appreciated. -- Ranbir

1 2

doveadm search segfault Dovecot 2.2.22
by rudolf＠padaru.de 17 Sep '20

17 Sep '20

Good Evening, i have a serius problem by usung the search function via imap or via doveadm. If i run this command: doveadm search -u <user> mailbox INBOX text 'Hello' I receive this line in my maillog: dovecot: imap(<user>): Fatal: master: service(imap): child 7472 killed with signal 11 (core dumped) in my /var/log/apport.log i can see this: ERROR: apport (pid 17785) Thu Sep 17 17:19:01 2020: called for pid 17777, signal 11, core limit 0, dump mode 1 ERROR: apport (pid 17785) Thu Sep 17 17:19:01 2020: executable: /usr/bin/doveadm (command line "doveadm search -u <user> mailbox INBOX text Hello") ERROR: apport (pid 17785) Thu Sep 17 17:19:01 2020: is_closing_session(): no DBUS_SESSION_BUS_ADDRESS in environment ERROR: apport (pid 17785) Thu Sep 17 17:19:01 2020: this executable already crashed 2 times, ignoring A gdb $(cat ExecutablePath) CoreDump from the unpackes dumpe show this: GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1 Copyright (C) 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/bin/doveadm...(no debugging symbols found)...done. [New LWP 1441] Core was generated by `doveadm search -u <user> mailbox INBOX text Hello'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007fb4da1f83f3 in ?? () from /usr/lib/dovecot/libdovecot.so.0 A doveconf -n show this output: # 2.2.22 (fe789d2): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.13 (7b14904) # OS: Linux 4.15.0-117-generic x86_64 Ubuntu 16.04.7 LTS auth_mechanisms = plain login auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@üÜöÖäÄ auth_worker_max_count = 60 disable_plaintext_auth = no imap_capability = +XLIST imap_logout_format = in=%i out=%o del=%{deleted} fetched_mails=%{fetch_hdr_count} lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lock_method = flock login_greeting = <myServer> mailserver ready. login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c mail_cache_min_mail_count = 30 mail_location = auto: mail_max_userip_connections = 30 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext editheader imapflags notify vnd.dovecot.pipe vnd.dovecot.filter vnd.dovecot.execute mbox_read_locks = dotlock mbox_very_dirty_syncs = yes mdbox_rotate_size = 250 M namespace inbox { inbox = yes location = mailbox Archiv { auto = no special_use = } mailbox Drafts { auto = no special_use = } mailbox Junk { auto = no special_use = } mailbox Sent { auto = no special_use = } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { auto = no special_use = } prefix = } passdb { args = /etc/dovecot/conf.d/zDovecot-sql.conf.ext driver = sql } plugin { sieve = ~/sieve/.dovecot.sieve sieve_after = ~/sieve_after/.dovecot_after.sieve sieve_before = ~/sieve_before/.dovecot_before.sieve sieve_dir = ~/sieve sieve_execute_bin_dir = /usr/local/bin/ sieve_execute_input_eol = lf sieve_extensions = +notify +imapflags +vnd.dovecot.pipe +vnd.dovecot.filter +vnd.dovecot.execute +editheader -reject sieve_filter_bin_dir = /usr/local/bin/ sieve_filter_input_eol = lf sieve_global_dir = /etc/dovecot/sieve/ sieve_max_redirects = 25 sieve_pipe_bin_dir = /usr/local/bin/ sieve_pipe_input_eol = lf sieve_plugins = sieve_extprograms sieve_redirect_envelope_from = recipient zlib_save = gz zlib_save_level = 6 } protocols = imap pop3 sieve service auth-worker { idle_kill = 1 mins } service auth { idle_kill = 1 mins unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } service imap-login { executable = /usr/lib/dovecot/imap-login process_min_avail = 4 service_count = 0 user = dovecot } service imap { process_limit = 1024 } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 0 user = dovecot } service managesieve { process_limit = 1024 user = dovecot } service pop3-login { executable = /usr/lib/dovecot/pop3-login process_min_avail = 4 service_count = 0 user = dovecot } service pop3 { executable = /usr/lib/dovecot/pop3 process_limit = 1024 } shutdown_clients = no ssl_ca = </etc/apache2/zertifikate/*.<myServer>.pem ssl_cert = </etc/apache2/zertifikate/*.<myServer>.pem ssl_cipher_list = ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-G CM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AE S128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA25 6:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE- ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES1 28-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE -DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES12 8-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:!DES-CBC3-SHA:!aNU LL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA- DES-CBC3-SHA:!KRB5-DES-CBC3-SHA ssl_dh_parameters_length = 2048 ssl_key = </etc/apache2/zertifikate/*.<myServer>.pem ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv3 userdb { args = /etc/dovecot/conf.d/zDovecot-sql.conf.ext driver = sql } verbose_proctitle = yes protocol lda { mail_plugins = " sieve zlib" rejection_reason = Your message to <%t> was automatically discarded:%n%r } protocol imap { imap_client_workarounds = delay-newmail mail_plugins = " mail_log notify zlib" ssl = yes } protocol pop3 { mail_plugins = zlib pop3_client_workarounds = oe-ns-eoh outlook-no-nuls pop3_no_flag_updates = no pop3_uidl_format = %08Xu%08Xv ssl = yes } What surprises me is that this problem only occurs with a text search in the inbox, I search in other mailboxes or only in the header this problem does not occur. Can anyone give me a tip on how I can solve this problem without upgrading to 2.33? Mit freundlichen Grüßen Yours sincerely <https://padaru.de/> Pascal Rudolf | Geschäftsführer PADARU-IT | Bielebohstraße 10 | 02736 Beiersdorf @: <mailto:rudolf@padaru.de> rudolf(a)padaru.de | www: <http://padaru.de/> padaru.de mobil: +49 (0) 17 772 595 32

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another problem with 2.3.36.4 after update os
by Maciej Milaszewski 17 Sep '20

17 Sep '20

Hi A few days ago I upgraded debian8 to debian9 dovecot is from source # 2.2.36.4 (baf9232c1): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.24.2 (aaba65b7) # OS: Linux 4.9.0-13-amd64 x86_64 Debian 9.13 Today I get some times in logs: "dovecot-uidlist line 112: Invalid data" and I dont know why This is claster dovecot: dovecot1 - debian8 dovecot2 - debian8 dovecot3 - debian8 dovecot4 - debian9 dovecot5 - debian8 director - debian8 storage is mont via nfs I upgrade os debian8->debian9 to one node like documentations

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Cannot load key: Invalid dovecot key version
by Mrinal Sharma 16 Sep '20

16 Sep '20

I am trying to use a newly added Local Validation functionality in dovecot version 2.3.11. I am running dovecot inside a Docker container With base image " debian:buster-slim". When I try to login through below command , a crash is seen. Algorithm Used is RS256 and certificate is self-signed. ''' a1 login admin eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJhZG1pbiIsIm5hbWUiOiJKb2huIERvZSIsImV4cCI6MTcwMDIyNDg3MiwiaWF0IjoxNTE2MjM5MDIyfQ.gCXOiUDKV5Bjxp_Vkd-I76A86qxxsCCm5YTtvoLhS5CwOV5rBQozcvnkAOkaIEWWMQqFqEIdA6V9RBztl0XlMe5tyil-2NFaXiKsbv6aYmNnBgX678MZlXRi8UFrIK1ymc4ya7Xi11hV5tuTQHAqi6MPEOdB9zTrFBa9CPCKU25G458cd8SMy7t6i_pb-CrBKCA0KKLFF-SJyz4gSu4ce9FFBTx8oYS1lDaQvf6drNw-_N6FfA1k4HVgEK9bU-SEZkeqE0t5nsFA-7V1-BgYvNaR5-tpzOjymeJP7dZ7rJzUqchVz-Z9V3hONGJEuromcEzgve_r9NSBlUTZlcT8Eg '''' dovecot_1 | Sep 16 03:29:36 auth-worker(25): Info: pam(admin,172.18.0.1,<Q5Bc4GWv9tqsEgAB>): pam_authenticate() failed: Authenticat ion failure (Password mismatch?) dovecot_1 | Sep 16 03:29:36 auth-worker(25): Debug: pam(admin,172.18.0.1,<Q5Bc4GWv9tqsEgAB>): Finished passdb lookup dovecot_1 | Sep 16 03:29:36 auth-worker(25): Debug: conn unix:auth-worker (pid=24,uid=101): auth-worker<1>: Finished dovecot_1 | Sep 16 03:29:36 auth: Debug: pam(admin,172.18.0.1,<Q5Bc4GWv9tqsEgAB>): Finished passdb lookup dovecot_1 | Sep 16 03:29:36 auth: Debug: oauth2(admin,172.18.0.1,<Q5Bc4GWv9tqsEgAB>): Performing passdb lookup dovecot_1 | Sep 16 03:29:36 auth: Debug: oauth2(admin,172.18.0.1,<Q5Bc4GWv9tqsEgAB>): Attempting to locally validate token dovecot_1 | Sep 16 03:29:36 auth: Debug: oauth2(admin,172.18.0.1,<Q5Bc4GWv9tqsEgAB>): callback(result: password_mismatch, error: Ca nnot load key: Invalid dovecot key version) dovecot_1 | Sep 16 03:29:36 auth: Info: oauth2(admin,172.18.0.1,<Q5Bc4GWv9tqsEgAB>): oauth2 failed: Cannot load key: Invalid doveco t key version dovecot_1 | Sep 16 03:29:36 auth: Debug: oauth2(admin,172.18.0.1,<Q5Bc4GWv9tqsEgAB>): Finished passdb lookup dovecot_1 | Sep 16 03:29:36 auth: Debug: auth(admin,172.18.0.1,<Q5Bc4GWv9tqsEgAB>): Auth request finished dovecot --version 2.3.11.3 (502c39af9) dovecot -n # 2.3.11.3 (502c39af9): /etc/dovecot/dovecot.conf # OS: Linux 4.19.76-linuxkit x86_64 Debian 10.5 fuse.grpcfuse # Hostname: 45e39b46f6ab auth_debug = yes auth_mechanisms = plain oauthbearer xoauth2 auth_verbose = yes disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it log_path = /dev/stdout mail_debug = yes mail_location = maildir:/data/imap_store/%n mail_plugins = " quota" namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Greeting { auto = create } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { auto = no special_use = \Trash } prefix = } passdb { driver = pam } passdb { args = /etc/dovecot/dovecot-oauth2.plain.conf.ext driver = oauth2 mechanisms = plain login } plugin { quota = maildir:User quota quota_rule = *:storage=5MB quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO } protocols = imap lmtp service doveadm { inet_listener http { port = 80 } } service lmtp { inet_listener lmtp { address = * port = 24 } process_min_avail = 5 } ssl = no userdb { driver = passwd } userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = quota postmaster_address = postmaster@domainname } protocol lda { mail_plugins = " quota notify push_notification" } protocol imap { imap_metadata = yes mail_plugins = " quota imap_quota quota" } Any help would be appreciated. Thanks, Mrinal

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dovecot 2.2.36.4 problem with ulimit
by Maciej Milaszewski 16 Sep '20

16 Sep '20

Hi I update os from debian8 to debian9 # 2.2.36.4 (baf9232c1): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.24.2 (aaba65b7) # OS: Linux 4.9.0-13-amd64 x86_64 Debian 9.13 All works fine but sometimes I get: Sep 16 09:17:00 dovecot4 dovecot: master: Error: service(pop3): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:00 dovecot4 dovecot: master: Error: service(imap): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:00 dovecot4 dovecot: master: Error: service(doveadm): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(doveadm): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(pop3): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:02 dovecot4 dovecot: master: Error: service(imap): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Sep 16 09:17:04 dovecot4 dovecot: master: Error: service(imap): fork() failed: Resource temporarily unavailable (ulimit -u 257577 reached?) Other dovecot is debian8 and problem not exists - any idea ?

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Imaptest using the 'DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA'
by Marc Roos 16 Sep '20

16 Sep '20

I just noticed that the imaptest program is using this default first message 'DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA' of the mbox file to test with. I think this should be execluded, as one does not expect this behaviour.

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