October 2021 - dovecot

Dovecot 2.3.17 can not start - too many parameters
by Robert Nowotny 29 Oct '21

29 Oct '21

Dovecot 2.3.17 can not start - too many parameters. but the same config is working on 2.3.16 (and for a long time already ...) started via systemd unit file : ================== [Unit] Description=Dovecot IMAP/POP3 email server Documentation=man:dovecot(1) Documentation=http://wiki2.dovecot.org/ After=local-fs.target network.target dnsmasq.service NetworkManager-wait-online.service network-online.target Requires=network.target network-online.target dnsmasq.service local-fs.target [Service] Type=forking ExecStart=/usr/local/sbin/dovecot -c /etc/dovecot/dovecot.conf PIDFile=/usr/local/var/run/dovecot/master.pid ExecReload=/usr/local/bin/doveadm reload ExecStop=/usr/local/bin/doveadm stop PrivateTmp=true NonBlocking=yes LimitNOFILE=8192 [Install] WantedBy=multi-user.target ================== log: Oct 29 18:48:58 lxc-imap dovecot[1781]: doveconf: Fatal: execvp(/usr/local/sbin/dovecot) failed: Argument list too long Oct 29 18:48:58 lxc-imap systemd[1]: dovecot.service: Control process exited, code=exited, status=89/n/a Oct 29 18:48:58 lxc-imap systemd[1]: dovecot.service: Failed with result 'exit-code'. but when I run doveconf -n, it is working under 2.3.17 I needed to revert to version 2.3.16 to send this email ;-) running on Ubuntu impish yours sincerely Robert Nowotny Rotek GmbH

2 1

Dovecot version 2.3.17 - dovadm user fail (LDAP)
by Günther J. Niederwimmer 29 Oct '21

29 Oct '21

Hello Oracle 8 (Centos) after Update I have Errors in the log ct 29 13:06:45 mx03.xxxxxxxxx.at dovecot[661311]: doveadm(gjn): Error: User doesn't exist Oct 29 13:06:45 mx03.xxxxxxxxxx.at dovecot[661311]: doveadm(baucons): Error: User doesn't exist Oct 29 13:06:45 mx03.xxxxxxxxxx.at dovecot[661311]: doveadm(ulrike): Error: User doesn't exist but with doveadm user '*' gjn ulrike baucons This is a Problem on all my 3 system? only one is working correct this is a centos 7 Server -- mit freundlichen Grüßen / best regards Günther J. Niederwimmer

2 2

Dovecot version 2.3.17 - mail replication stopped working
by Daniel Botting 29 Oct '21

29 Oct '21

Hi, We upgraded to Dovecot 2.3.17 today and mail replication has stopped working as expected, the error in mail.err is: Oct 28 10:27:44 hostname dovecot: imap-login: Error: net_connect_unix(/var/run/dovecot/stats-writer) failed: No such file or directory Oct 28 10:28:47 hostname dovecot: doveadm: Error: sync: invalid option -- 'T' This is constantly repeated afterwards All the files in /var/run/dovecot have last modified time of 10:27 The permissions on both hosts for this file are: srw-rw---- 1 root dovecot 0 Oct 28 10:27 stats-writer= OS: Debian 10.11 Doveconf -n output below: # 2.3.17 (e2aa53df5b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.17 (054dddfa) # OS: Linux 4.19.0-18-amd64 x86_64 Debian 10.11 # Hostname: mailserver fqdn auth_verbose = yes default_vsz_limit = 0 doveadm_password = # hidden, use -P to show it first_valid_gid = 8 first_valid_uid = 8 last_valid_gid = 8 last_valid_uid = 8 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_gid = 8 mail_location = maildir:~/Maildir mail_plugins = " notify replication" mail_uid = 8 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext editheader imapflags namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { mail_replica = tcps:fqdn:port number sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +editheader +imapflags } postmaster_address = postmaster@ourdomain protocols = " imap sieve pop3" replication_dsync_parameters = -d -N -l 15 -U -T 10 replication_max_conns = 24 service aggregator { fifo_listener replication-notify-fifo { user = mail } unix_listener replication-notify { user = mail } } service auth { unix_listener /var/run/dovecot-exim-bridge { mode = 0660 user = Debian-exim } } service doveadm { inet_listener { port = 12345 ssl = yes } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_limit = 512 process_min_avail = 4 service_count = 1 } service imap { process_limit = 1024 } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 1 service_count = 8 vsz_limit = 256 M } service managesieve { process_limit = 1024 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } ssl = required ssl_cert = </ssl cert path ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL ssl_client_ca_dir = /etc/ssl/certs ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap override_fields = home=/var/mail/%u uid=mail gid=mail } protocol lda { mail_plugins = " notify replication sieve" } protocol imap { mail_max_userip_connections = 32 mail_plugins = " notify replication" } protocol sieve { mail_max_userip_connections = 10 managesieve_logout_format = bytes=%i/%o managesieve_max_line_length = 64 k } Best regards Daniel

2 4

Re: [EXT] Re: Dovecot v2.3.17 released
by Frank Elsner 28 Oct '21

28 Oct '21

On Thu, 28 Oct 2021 19:17:40 +0300 (EEST) Aki Tuomi wrote: > > > On 28/10/2021 19:10 Frank Elsner <frank.elsner(a)mailbox.org> wrote: > > > > > > On Thu, 28 Oct 2021 17:32:28 +0300 (EEST) Aki Tuomi wrote: > > > > [ ... ] > > > > > I guess you are using systemd-coredump, so try > > > > > > coredumpctl dump -o core /usr/libexec/dovecot/imap { ... ] > In the directory you ran that command, there will be now a file called 'core'. Can you now do: > > gdb /usr/libexec/dovecot/imap core > bt full Hi Aki, I hope to deliver the requested info with this output (gdb) bt full #0 fts_user_autoindex_exclude (box=<optimized out>, box@entry=0x559500fdd138) at fts-user.c:347 fuser = <optimized out> #1 0x00007f50d8f623b6 in fts_mailbox_allocated (box=0x559500fdd138) at fts-storage.c:806 flist = <optimized out> v = 0x559500fdd7b8 fbox = 0x559500fdd918 #2 0x00007f50d942bd1c in hook_mailbox_allocated (box=box@entry=0x559500fdd138) at mail-storage-hooks.c:256 _data_stack_cur_id = 5 _foreach_end = 0x559500fce758 _foreach_ptr = 0x559500fce740 hooks = 0x7f50d8f90b40 <fts_mail_storage_hooks> ctx = 0x559500fde558 #3 0x00007f50d9426f11 in mailbox_alloc (list=0x559500fd40c8, vname=vname@entry=0x559500f87620 "Administration", flags=flags@entry=0) at mail-storage.c:885 _data_stack_cur_id = 4 new_list = 0x559500fd40c8 storage = 0x559500fd48d8 box = 0x559500fdd138 open_error = MAIL_ERROR_NONE errstr = 0x0 __func__ = "mailbox_alloc" #4 0x00005594fffcaae2 in cmd_create (cmd=0x559500fd38b8) at cmd-create.c:40 ns = 0x559500fd3390 --Type <RET> for more, q to quit, c to continue without paging-- mailbox = 0x559500f87620 "Administration" orig_mailbox = <optimized out> box = 0x559500fdc5a0 directory = <optimized out> len = 14 #5 0x00005594fffd8494 in command_exec (cmd=cmd@entry=0x559500fd38b8) at imap-commands.c:201 hook = 0x559500f93580 finished = <optimized out> __func__ = "command_exec" #6 0x00005594fffd64c2 in client_command_input (cmd=<optimized out>) at imap-client.c:1230 client = 0x559500fd2788 command = <optimized out> tag = 0x7f50d9331f3a <p_strdup+74> "]A\\A]\303\061\300\303ff.\017\037\204" name = 0x5594fffea726 "CREATE" ret = <optimized out> __func__ = "client_command_input" #7 0x00005594fffd6574 in client_command_input (cmd=<optimized out>) at imap-client.c:1297 client = 0x559500fd2788 command = <optimized out> tag = 0x559500f9e0e8 "161" name = 0x559500f9e0f0 "CREATE" ret = <optimized out> __func__ = "client_command_input" --Type <RET> for more, q to quit, c to continue without paging-- #8 0x00005594fffd697d in client_handle_next_command (remove_io_r=<synthetic pointer>, client=0x559500fd2788) at imap-client.c:1339 No locals. #9 client_handle_input (client=0x559500fd2788) at imap-client.c:1353 _data_stack_cur_id = 3 ret = <optimized out> remove_io = false handled_commands = false __func__ = "client_handle_input" #10 0x00005594fffd6f30 in client_input (client=0x559500fd2788) at imap-client.c:1397 cmd = 0x559500f9b6a8 output = 0x559500fd31f0 bytes = 27 __func__ = "client_input" #11 0x00007f50d9314249 in io_loop_call_io (io=0x559500fd3330) at ioloop.c:737 ioloop = 0x559500f8fe70 t_id = 2 __func__ = "io_loop_call_io" #12 0x00007f50d93158f2 in io_loop_handler_run_internal (ioloop=ioloop@entry=0x559500f8fe70) at ioloop-epoll.c:222 ctx = 0x559500f925d0 events = <optimized out> event = 0x559500f92650 list = 0x559500f9b690 --Type <RET> for more, q to quit, c to continue without paging-- io = <optimized out> tv = {tv_sec = 1799, tv_usec = 999057} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 j = 0 call = <optimized out> __func__ = "io_loop_handler_run_internal" #13 0x00007f50d93142f0 in io_loop_handler_run (ioloop=0x559500f8fe70) at ioloop.c:789 __func__ = "io_loop_handler_run" #14 0x00007f50d93144b0 in io_loop_run (ioloop=0x559500f8fe70) at ioloop.c:762 __func__ = "io_loop_run" #15 0x00007f50d92884f3 in master_service_run (service=0x559500f8fcd0, callback=callback@entry=0x5594fffe4c90 <client_connected>) at master-service.c:863 No locals. #16 0x00005594fffc7f85 in main (argc=<optimized out>, argv=<optimized out>) at main.c:564 set_roots = {0x5594ffff98e0 <smtp_submit_setting_parser_info>, 0x5594ffff9600 <imap_setting_parser_info>, 0x0} login_set = {auth_socket_path = 0x559500f877f8 "\003", postlogin_socket_path = 0x0, postlogin_timeout_secs = 60, callback = 0x5594fffe5640 <login_client_connected>, failure_callback = 0x5594fffe4d60 <login_client_failed>, request_auth_token = true} service_flags = <optimized out> storage_service_flags = (MAIL_STORAGE_SERVICE_FLAG_NO_NAMESPACES | MAIL_STORAGE_SERVICE_FLAG_NO_SSL_CA) --Type <RET> for more, q to quit, c to continue without paging-- username = <optimized out> auth_socket_path = <optimized out> c = <optimized out> error = 0x7fffe05085a8 "" (gdb) By for today, Frank

2 1

Pigeonhole v0.5.17 released
by Aki Tuomi 28 Oct '21

28 Oct '21

We are pleased to release first release candidate for v0.5.14. We have done changes to packaging so please give us any feedback on how it works. https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.17.t… https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.17.t… Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot Kind regards, Aki Tuomi Open-Xchange oy --- - duplicate: The Sieve duplicate test is prone to false negatives when the user receives many e-mails concurrently, meaning that duplicate deliveries can still occur. - fileinto: v2.3.16 regression: Sieve delivery crashes if mail is delivered to non-existing and existing folder. - imap-filter-sieve: v2.3.15 regression: The CPU limits on Sieve execution are too easily exceeded in IMAP context (the IMAPSieve and FILTER=SIEVE capabilities). Changed the default to unlimited CPU time for IMAP context, since similar excessive resource usage can be caused by other means as well. The CPU limits on Sieve scripts executed at LDA/LMTP delivery are still enforced by default. - redirect: The Sieve redirect action has protections against users triggering mail loops. Unfortunately, the detection of a redirect mail loop sometimes causes the message to get lost if no other Sieve action is applied that delivers the message somewhere else. - redirect: v2.3.16 regression: With certain Sieve scripts if redirect fails due to temporary failure, the lmtp process may crash after the delivery. Fixes: Panic: file mail-user.c: line 229 (mail_user_deinit): assertion failed: ((*user)->refcount == 1).

3 3

download from pigeonhole.dovecot.org not possible via IPv6 http
by Wolfgang Zenker 28 Oct '21

28 Oct '21

Hello, I tried to download the dovecot-2.3-pigeonhole-0.5.15.tar.gz source archive from http://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.15.ta… on an IPv6-only server, but the download fails. The server pigeonhole.dovecot.org has an IPv6 address published in DNS that is actually pingable, but connection on the http-port is not possible. Connecting on https does work, as does http AND https on IPv4. This appears to be a simple configuration problem and should be easily fixed; the correct behaviour would be to redirect from http to https on IPv6 the same way it is done for IPv4 already. Greetings, Wolfgang

2 1

dovecot oauth
by la.jolie＠paquerette 27 Oct '21

27 Oct '21

Hello, I upgraded my servers from Debian Buster (v10) to Bullseye (v11). Before the upgrade, I had Roundcube / Dovecot working with LemonLdap (via OAuth). After the upgrade, i can't connect to Roundcube anymore. - roundcube (v1.5-rc) stayed the same - Dovecot upgraded from v1:2.3.4.1-5+deb10u6 to v1:2.3.13+dfsg1-2 I already discussed on the LemonLdap mailing list and the analysis was: "Seems like your app is not sending client_id and client_secret correctly then It can do that either as POST parameters or in the Authorization header" I downgraded Dovecot to Buster version (v1:2.3.4.1-5+deb10u6) and Roundcube / Dovecot are working again. What could have change between these 2 versions to have that error? My dovecot Oauth config: ---- debug = yes ## url for verifying token validity. Token is appended to the URL tokeninfo_url = https://auth.mydomain.name/oauth2/userinfo?access_token= ## introspection endpoint, used to gather extra fields and other information. introspection_url = https://auth.mydomain.name/oauth2/introspect ## How introspection is made, valid values are ## auth = GET request with Bearer authentication ## get = GET request with token appended to URL ## post = POST request with token=bearer_token as content introspection_mode = post ## TLS settings tls_ca_cert_file = /etc/ssl/certs/ca-certificates.crt ## username attribute in response (default: email) username_attribute = email ---- The error I found in the logs: ---- ==> nginx/portal.log <== 11.22.33.44 - - [25/Oct/2021:16:31:59 +0200] "POST /oauth2/introspect HTTP/1.1" 401 355 "-" "dovecot-oauth2-passdb/2.3.13" - ==> error <== Oct 25 16:31:59 XXX LLNG[413575]: [error] No authentication provided to get token, or authentication type not supported ==> mail.log <== Oct 25 16:31:59 XXX dovecot[1390]: auth: Debug: http-client: conn 11.22.33.44:443 [12]: Got 401 response for request [Req72: POST https://auth.mydomain.name/oauth2/introspect]: Unauthorized (took 705 ms + 0 ms in queue) Oct 25 16:31:59 XXX dovecot[1390]: auth: Error: oauth2(yyyyy(a)mydomain.name,127.0.0.1,<bTQoOS7PRLV/AAAB>): oauth2 failed: Object doesn't begin with '{' ---- Thanks, Kenny

2 2

Doveadm fetch slow and 100%CPU with a specific message-id
by Alessio Cecchi 26 Oct '21

26 Oct '21

Hi, I'm using doveadm fetch in order to find the mailbox where a messagge is stored: doveadm fetch -u alessio(a)domain.com "mailbox" HEADER Message-ID '1234(a)domain.com' If the messagge-id is ... long more than? ... I don't know, the lookup is very very slow, here an example: with message-id 9c102380c557e7e146a33cb4b49ab802(a)cbweb.cecchi.net respons time: 3 secs with message-id kZ1ZoAa8QnsfZ64hTe9P3K0OOjL24xTq7vUMB3Qw3E(a)www.myxmail.com response time: 80 secs and java/solr use the 100% CPU Both messages are in the same folder (Trash) If I add -D to doveadm it stuck some seconds every time connect to Solr: Oct 25 18:30:08 doveadm(alessio(a)domain.com): Debug: http-client: queue http://127.0.0.1:8983: Connection to peer 127.0.0.1:8983 claimed request [Req1: GET http://127.0.0.1:8983/solr/dovecot/select?wt=xml&fl=uid,score&rows=26&sort=…] Oct 25 18:30:08 doveadm(alessio(a)domain.com): Debug: http-client: conn 127.0.0.1:8983 [1]: Claimed request [Req1: GET http://127.0.0.1:8983/solr/dovecot/select?wt=xml&fl=uid,score&rows=26&sort=…] Oct 25 18:30:08 doveadm(alessio(a)domain.com): Debug: http-client: request [Req1: GET http://127.0.0.1/solr/dovecot/select?wt=xml&fl=uid,score&rows=26&sort=uid+a…...: Sent header Oct 25 18:30:08 doveadm(alessio(a)domain.com): Debug: http-client: peer 127.0.0.1:8983: No more requests to service for this peer (1 connections exist, 0 pending) [...] Oct 25 18:30:08 doveadm(alessio(a)domain.com): Debug: http-client: queue http://127.0.0.1:8983 My dovecot version is 2.3.16 and Solr 7.7. Why? Thanks -- Alessio Cecchi Postmaster @ http://www.qboxmail.it https://www.linkedin.com/in/alessice

4 9

Problem with shared after upgrade
by Yves 24 Oct '21

24 Oct '21

Hi, Old (and production) version : dovecot --version 2.1.9 New version : dovecot --version 2.3.16 (7e2e900c1a) Exactly same configuration, for shared configuration : namespace { list = children location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u prefix = shared/%%u/ separator = / subscriptions = yes type = shared } But : On Old version, with my imap client (Thunderbird), I see : <account> / shared / <shared account> / INBOX <account> / shared / <shared account> / all the others folders On new version, I see : <account> / shared / <shared account> / all the others folders But not <account> / shared / <shared account> / INBOX I debug it, and seem to be OK : doveadm acl debug -u <account> shared/<shared account>/INBOX doveadm(<account>): Info: Mailbox 'INBOX' is in namespace 'shared/<shared account>/' doveadm(<account>): Info: Mailbox path: /home/dovecotmail/<shared account>/Maildir doveadm(<account>): Info: All message flags are shared across users in mailbox doveadm(<account>): Info: User <account> has rights: lookup read write write-seen write-deleted insert post expunge create delete admin doveadm(<account>): Info: Mailbox found from dovecot-acl-list doveadm(<account>): Info: User <shared account> found from ACL shared dict doveadm(<account>): Info: Mailbox shared/<shared account>/INBOX is visible in LIST And in debug log : Oct 23 12:35:01 imap(<account>)<18244><IrkoZALP4eRQfHif>: Debug: Mailbox shared/<shared account>: Rotated transaction log /home/dovecotmail/<account>/Maildir/shared/<shared account>/.INBOX/dovecot.index.log (seq=982, reset=no) Oct 23 12:35:01 imap(<account>)<18244><IrkoZALP4eRQfHif>: Debug: Mailbox shared/<shared account>: Recreated /home/dovecotmail/<account>/Maildir/shared/<shared account>/.INBOX/dovecot.index (file_seq=982) because: .log file format version 1.2 is too old Debug is ok for me ? Any idea ? Thanks

2 2

doveconf non-syntax check
by William Edwards 23 Oct '21

23 Oct '21

I use doveconf to check if my config is valid: root@unix:/etc/dovecot# doveconf <My config as stdout, as expected> root@unix:/etc/dovecot# echo $? 0 doveconf doesn't report any errors, as my config is syntactically valid. However, due to a non-syntax error, Dovecot doesn't start: root@unix:/etc/dovecot# ls /usr/local/snicerts/thisdoesntexist.key ls: cannot access '/usr/local/snicerts/thisdoesntexist.key': No such file or directory root@unix:/etc/dovecot# dovecot -F doveconf: Fatal: Error in configuration file /etc/dovecot/dovecot.conf line 4: ssl_key: Can't open file /usr/local/snicerts/thisdoesntexist.key: No such file or directory root@unix:/etc/dovecot# echo $? 89 Does Dovecot provide a config checker that checks more than just the syntax, but also issues like the one above? If not, maybe it's useful to add a 'quiet' option (i.e. no stdout) to doveconf. -- With kind regards, William Edwards

2 2