- dovecot - dovecot.org

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

12 Dec '19

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

4 5

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

12 Dec '19

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

3 7

Submission config being ignored
by William Edwards 12 Dec '19

12 Dec '19

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

2 2

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

12 Dec '19

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

8 13

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

11 Dec '19

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

1 1

dkim + arc
by Aki Tuomi 11 Dec '19

11 Dec '19

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

2 2

Ban Atomia.com?
by LuKreme 11 Dec '19

11 Dec '19

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

5 4

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

11 Dec '19

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

1 0

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

11 Dec '19

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

1 0

Atomia user activation
by Atomia 11 Dec '19

11 Dec '19

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

1 0

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

11 Dec '19

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

4 7

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

11 Dec '19

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

1 0

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

11 Dec '19

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

1 0

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

11 Dec '19

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

2 1

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

10 Dec '19

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

3 8

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

10 Dec '19

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

4 6

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

10 Dec '19

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

3 4

OAuth2 mail client
by mizuki 10 Dec '19

10 Dec '19

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

1 0

Problem With Quota Dovecot
by Gter Marcelo 09 Dec '19

09 Dec '19

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

2 4

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

09 Dec '19

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

2 2

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

09 Dec '19

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

2 4

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

09 Dec '19

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

2 1

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

09 Dec '19

2 1

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

09 Dec '19

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

2 2

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

09 Dec '19

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

1 1

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

08 Dec '19

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

1 0

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

08 Dec '19

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

1 0

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

08 Dec '19

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

2 1

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

08 Dec '19

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

3 2

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

08 Dec '19

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

5 12

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

06 Dec '19

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

2 2

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

06 Dec '19

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

2 3

Problem with sievefilter forwarding
by ratatouille 06 Dec '19

06 Dec '19

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

2 2

ACL hide folders
by Peter Chiochetti 06 Dec '19

06 Dec '19

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

1 3

v2.3.9 released
by Aki Tuomi 06 Dec '19

06 Dec '19

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

3 2

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

06 Dec '19

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

5 5

Dovecot & OAuth
by mizuki 06 Dec '19

06 Dec '19

Hi all, We'd like to enable OAuth with Keycloak in Dovecot, after enabling 'OAUTHBEARER XOAUTH2' in Dovecot based on online document, I can confirm Dovecot is ready for OAuth using openssl command, however when the auth request comes in, it failed in establishing a SSL connection with Keycloak server on port 443, shown as following in debug logs. I can confirming using commands 'openssl s_client -connect <keycloak_server>:443' or 'curl -v https://<keycloak_server/' all returns normal and no errors. Altering some of the SSL options in dovecot such as 'ssl_ca = </etc/pki/CA/certs/root_ca.pem' or 'ssl_client_ca_file = </etc/pki/CA/certs/root_ca.pem' does not help either. The certificate are NOT self-signed but signed the legit authorities. So I'm not sure why dovecot could not establish the connections. *Debug logs:* ---------------------------------------------------- Dec 5 14:32:07 mktst4 dovecot: auth: Debug: auth client connected (pid=16554) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: client in: AUTH#0111#011OAUTHBEARER#011service=imap#011secured#011session=QPwA/fmY+tqCx5Tr#011lip=130.199.148.187#011rip=10.0.2.1#011lport=993#011rport=56058#011resp=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 (previous base64 data may contain sensitive data) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: host example.com: Host created Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: host example.com: Performing asynchronous DNS lookup Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: request [Req1: GET https://example.com/auth/realms/mail/protocol/openid-connect/tokeneyJhbGciO…] Submitted Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: host example.com: DNS lookup successful; got 1 IPs Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: peer 10.0.2.2:443: Peer created Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: queue https://example.com"443: Setting up connection to 10.0.2.2:443 (SSL= example.com) (1 requests pending) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: peer 10.0.2.2:443: Linked queue https://example.com:443 (1 queues linked) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: queue https://example.com:443: Started new connection to 10.0.2.2:443 (SSL= example.com) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: peer 10.0.2.2:443: Creating 1 new connections to handle requests (already 0 usable, connecting to 0, closing 0) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: peer 10.0.2.2:443: Making new connection 1 of 1 Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: conn 10.0.2.2:443 [0]: HTTPS connection created (1 parallel connections exist) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: conn 10.0.2.2:443 [0]: Connected Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: conn 10.0.2.2:443 [0]: Starting SSL handshake Dec 5 14:32:22 mktst4 dovecot: auth: Received invalid SSL certificate: unable to get issuer certificate: /C=US/ST=New Jersey/L=Jersey City/O=The USERTRUST Network/CN=USERTrust RSA Certification Authority Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: peer 10.0.2.2:443: Failed to make connection (connections=1, connecting=1) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: queue https://example.com:443: Failed to set up connection to 10.0.2.2:443 (SSL= example.com) SSL handshaking with 10.0.2.2:443 failed: read(SSL 10.0.2.2:443) failed: Received invalid SSL certificate: unable to get issuer certificate: /C=US/ST=New Jersey/L=Jersey City/O=The USERTRUST Network/CN=USERTrust RSA Certification Authority (1 peers pending, 1 requests pending) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: queue https://example.com:443: Failed to set up any connection; failing all queued requests Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: peer 10.0.2.2:443: Unlinked queue https://example.com:443 (0 queues linked) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: queue https://example.com:443: Dropping request [Req1: GET https://example.com/auth/realms/mail/protocol/openid-connect/tokeneyJhbGciO… ] Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: host example.com: Host is idle (timeout = 1799992 msecs) Dec 5 14:32:22 mktst4 dovecot: auth: Error: oauth2(mizuki,10.0.2.1,<QPwA/fmY+tqCx5Tr>): oauth2 failed: SSL handshaking with 10.0.2.2:443 failed: read(SSL 10.0.2.2:443) failed: Received invalid SSL certificate: unable to get issuer certificate: /C=US/ST=New Jersey/L=Jersey City/O=The USERTRUST Network/CN=USERTrust RSA Certification Authority Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: request [Req1: GET https://example.com/auth/realms/mail/protocol/openid-connect/tokeneyJhbGciO…] Destroy (requests left=1) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: request [Req1: GET https://example.com/auth/realms/mail/protocol/openid-connect/tokeneyJhbGciO…] Free (requests left=0) Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: conn 10.0.2.2:443 [0]: SSL handshaking with 10.0.2.2:443 failed: read(SSL 10.0.2.2:443) failed: Received invalid SSL certificate: unable to get issuer certificate: /C=US/ST=New Jersey/L=Jersey City/O=The USERTRUST Network/CN=USERTrust RSA Certification Authority Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: conn 10.0.2.2:443 [0]: Connection close Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: conn 10.0.2.2:443 [0]: Connection disconnect Dec 5 14:32:22 mktst4 dovecot: auth: Debug: http-client: conn 10.0.2.2:443 [0]: Connection destroy ---------------------------------------------------- *#dovecot -n * ---------------------------------------------------- # 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-1062.4.3.el7.x86_64 x86_64 Red Hat Enterprise Linux Server release 7.7 (Maipo) # Hostname: mktst4.sdcc.bnl.gov auth_debug = yes auth_debug_passwords = yes auth_mechanisms = oauthbearer xoauth2 auth_verbose = yes auth_verbose_passwords = yes first_valid_uid = 1000 mail_debug = yes mail_location = maildir:~/Maildir mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-oauth2.conf.ext driver = oauth2 mechanisms = oauthbearer xoauth2 } protocols = imap service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } ssl = required ssl_ca = </etc/pki/CA/certs/2.pem ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_cipher_list = ECDH+AESGCM:ECDH+CHACHA20:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:!aNULL:!MD5:!DSS:!RSA ssl_client_ca_file = </etc/pki/CA/certs/2.pem ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes ssl_require_crl = no userdb { args = uid=vmail gid=vmail home=/var/vmail/%u driver = static } ---------------------------------------------------- *# cat /etc/dovecot/conf.d/auth-oauth2.conf.ext* ---------------------------------------------------- passdb { driver = oauth2 mechanisms = oauthbearer xoauth2 args = /etc/dovecot/dovecot-oauth2.conf.ext } userdb { driver = static args = uid=vmail gid=vmail home=/var/vmail/%u } ---------------------------------------------------- I wonder if anyone has experienced this possibly know what's going on. Thanks! Mizuki

2 3

Supporting RFC 5466 (IMAP4 Extension for Named Searches (Filters))
by Jesus Cea 05 Dec '19

05 Dec '19

I wonder if Dovecot supports RFC 5466 (IMAP4 Extension for Named Searches (Filters)) or if there is any plan about it. -- Jesús Cea Avión _/_/ _/_/_/ _/_/_/ jcea(a)jcea.es - http://www.jcea.es/ _/_/ _/_/ _/_/ _/_/ _/_/ Twitter: @jcea _/_/ _/_/ _/_/_/_/_/ jabber / xmpp:jcea@jabber.org _/_/ _/_/ _/_/ _/_/ _/_/ "Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/ "El amor es poner tu felicidad en la felicidad de otro" - Leibniz

4 6

How to rewrite local_lmpt ipc to tcp port 24
by Marc Roos 05 Dec '19

05 Dec '19

How to change this line in sendmail.mc, to the tcp port 24 on eg 127.0.0.1? FEATURE(`local_lmtp',`[IPC]',`FILE /var/run/dovecot/lmtp')dnl

2 1

dovecot expunge
by soumitri＠iitk.ac.in 05 Dec '19

05 Dec '19

Hi, Do we have expunge command by UID. I have some duplicate messages (same Message-ID but different UID) to be deleted. doveadm search gives me folder GUID and file UID, I want to use this specific information to delete/expunge. E.g. Following command deletes all duplicates, but I want to keep just one. doveadm expunge -u user1 mailbox INBOX HEADER Message-ID '5de82b2d.6VWfTzsd/fEAxfV7%cytx(a)iitk.ac.in' The following does not help doveadm deduplicate -u user1 mailbox INBOX -- Sincerely, Soumitri Mishra

2 1

How do I set all my mailboxes to "subscribed"
by Steve Litt 05 Dec '19

05 Dec '19

Hi all, I've had a great deal of trouble accessing my Dovecot IMAP from most supposedly IMAP aware email clients, and have been advised that it might be because some of my email folders are not subscribed. Is there s way I can subscribe all my folders? I see no reason to have a folder not subscribed. Thanks, SteveT Steve Litt December 2019 featured book: Rapid Learning for the 21st Century http://www.troubleshooters.com/rl21

2 1

Email blocking emails
by Peter Nabbefeld 05 Dec '19

05 Dec '19

Hello, I had troubles getting emails, because this one caused a Sig 6: https://p.ip.fi/DGSP It might be important that I'm using SOLR. After I removed this mail, I could fetch emails again. Kind regards Peter

2 1

Dovecot 2.3.9 fails on FreeBSD
by Pascal Christen 04 Dec '19

04 Dec '19

Hi I've just tried to build the latest Dovecot 2.3.9 on FreeBSD 11.3. Without success...It fails on the following commit which was introduced in 2.3.9: https://github.com/dovecot/core/commit/c85f1bc3ce612c736c9d2c468cc08306db1b… Following output is the build log: https://pastebin.com/3nvSeDn8 So I guess it has to do with some changes FreeBSD made: https://reviews.freebsd.org/D18630 What do you guys think? Greetings Pascal

4 10

dovecot sieve duplicates detection
by André Rodier 04 Dec '19

04 Dec '19

Hello, I have tested the sieve duplicate script with success so far, but I have a question. I would like to know if the "duplicate" sieve flag in Dovecot is global to all folders, or specific to one folder only. For instance, if I copy an email from one folder to another, and I have a discard action on duplicate email, is this action will be applied (in this case, discard) or not. If the duplicate is global to all folders, is there a way to restrict the search in one folder only. Thanks for your help. André

3 10

About "received" header when using Dovecot proxy
by ml＠riku22.net 04 Dec '19

04 Dec '19

Hello. My name is Riku. Currently, I use Dovecot as a proxy for another SMTP server. However, this seems to cause the IP address of the "received" header to be that of the proxy server. Is it possible to change this so that the IP address of the sender is entered? The version of Dovecot is "2.3.8 (9df20d2db)". Sorry for the incomprehensible explanation. Thank you. Best regards.

4 6

Environment variables in pgsql connect string
by Eirik Rye 04 Dec '19

04 Dec '19

Hi, We are trying to set up a Dovecot Docker image with dynamic database configuration based on environment variables, however the variables do not appear to be expanded in the "connect=" string of the SQL config. The documentation states that environment variables, being listed under global variables, work "everywhere": https://doc.dovecot.org/configuration_manual/config_file/config_variables/#… However, the source code for driver-pgsql.c indicates that the connect string is never expanded: https://github.com/dovecot/core/blob/master/src/lib-sql/driver-pgsql.c#L297 For reference, this is my configuration. dovecot.conf: import_environment = PASSDB_USER PASSDB_DBNAME PASSDB_PASSWORD passdb { override_fields = proxy=y driver = sql args = /etc/dovecot/dovecot-sql.conf.ext } /etc/dovecot/dovecot-sql.conf.ext: driver = pgsql connect = host=mail-passdb dbname=%{env:PASSDB_DBNAME} user=%{env:PASSDB_USER} password=%{env:PASSDB_PASSWORD} Does anyone have any suggestions for how to connect to a database without hardcoding the connection parameters in the Dovecot config, which does not involve patching driver-pgsql.c to make the variable expansion? Best regards, Eirik Rye

2 1

some error about dovecot when compile
by Magiczero 04 Dec '19

04 Dec '19

when i build dovecot in my computer, something has occured like below: root@2030c8624e88:/dovecot-2.3.9# ./autogen.sh --2019-12-04 10:49:53-- https://www.dovecot.org/tmp/wiki2-export.tar.gz Resolving www.dovecot.org (www.dovecot.org) 94.237.12.234, 2a04:3545:1000:720:acc1:5bff:fe5e:4e9 Connecting to www.dovecot.org (www.dovecot.org)|94.237.12.234|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 446263 (436K) [application/x-gzip] Saving to: 'wiki2-export.tar.gz' wiki2-export.tar.gz 100%[===============================>] 435.80K 152KB/s in 2.9s 2019-12-04 10:49:59 (152 KB/s) - 'wiki2-export.tar.gz' saved [446263/446263] configure.ac:298: warning: macro 'AM_ICONV' not found in library libtoolize: putting auxiliary files in '.'. libtoolize: copying file './ltmain.sh' libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'. libtoolize: copying file 'm4/libtool.m4' libtoolize: copying file 'm4/ltoptions.m4' libtoolize: copying file 'm4/ltsugar.m4' libtoolize: copying file 'm4/ltversion.m4' libtoolize: copying file 'm4/lt~obsolete.m4' configure.ac:298: warning: macro 'AM_ICONV' not found in library configure.ac:22: error: possibly undefined macro: AC_DEFINE If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. configure.ac:127: error: possibly undefined macro: dnl configure.ac:298: error: possibly undefined macro: AM_ICONV configure.ac:429: error: possibly undefined macro: AC_CHECK_HEADER configure:24018: error: possibly undefined macro: AC_CHECK_LIB configure:25593: error: possibly undefined macro: AC_CHECK_FUNC autoreconf: /usr/bin/autoconf failed with exit status: 1 from the information, i think the problem is macro 'AM_ICONV', there are any problem in the setup script? i want you help me to solve this issue. Thank you. Best MagicZero Sent with [ProtonMail](https://protonmail.com) Secure Email.

2 2

Pigeonhole v0.5.9 released
by Aki Tuomi 04 Dec '19

04 Dec '19

Hi all! We are pleased to release v0.5.9 of Pigeonhole. Please find it from locations below --- Aki Tuomi Open-Xchange oy https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.9.ta… https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.9.ta… Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot --- + Added events for Sieve and ManageSieve, see https://doc.dovecot.org/admin_manual/list_of_events/#pigeonhole + Pigeonhole: Implement the Sieve "special-use" extension described in RFC 8579. - duplicate: Test only compared the handles which would cause different values to be cached as the same duplicate test. Fix to also compare the actual hashes. - imap_sieve_filter: IMAP FILTER Command had various bugs in error handling. Errors may have been duplicated for each email, errors may have been missing entirely, command tag and ERRORS/WARNINGS parameters were swapped.

1 0

Fast searching from android device with Dovecot/Maildir
by John Gateley 03 Dec '19

03 Dec '19

Hello, I am using dovecot as an imap server, mail is stored in mail directories. Configuration is below. One mail directory has about 14 Gb of mail in the inbox and .Sent directories. Searching from an Android phone with gmail is slow or doesn't work (it times out). Is there a configuration for Dovecot that can improve this? A better e-mail client for Android? Thanks, John root@giraffe:~# dovecot --version 2.2.27 (c0f36b0) root@giraffe:~# doveconf -an # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 4.9.0-11-amd64 x86_64 Debian 9.11 ... mail_location = maildir:~/Maildir namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } ... protocols = " imap" ...

3 3

fts_solr and # char
by Marcio Merlone 03 Dec '19

03 Dec '19

Hi, Dovecot wiki says the solr url is something like 'solr/dovecot/' but this gives a 404, if I install solr as per the docs I have a 'solr/#/dovecot/' url: https://wiki.dovecot.org/Plugins/FTS/Solr I have installed dovecot 2.3 from https://repo.dovecot.org/ and solr 8.3 as per the wiki on a Ubuntu 18.04. The problem and the guess work I did: fts_solr = url=http://localhost:8983/solr/#/dovecot/ doveconf: Warning: Configuration file /etc/dovecot/conf.d/90-plugin.conf line 13: Ambiguous '#' character in line, treating it as comment. Add a space before it to remove this warning. fts_solr = url="http://localhost:8983/solr/#/dovecot/" Error: fts: Failed to initialize backend 'solr': fts_solr: Failed to parse HTTP url: Path component contains invalid character fts_solr = url='http://localhost:8983/solr/#/dovecot/' Error: fts: Failed to initialize backend 'solr': fts_solr: Failed to parse HTTP url: Relative HTTP URL not allowed fts_solr = url=http://localhost:8983/solr/%23/dovecot/ Error: Failed to expand plugin setting fts_solr = 'url=http://localhost:8983/solr/%23/dovecot/': Unknown variable '%/' fts_solr = 'url=http://localhost:8983/solr/#/dovecot/' fts_solr: Failed to parse HTTP url: URL fragment not allowed for HTTP URL in this context Thanks for any help. -- *Marcio Merlone=*

2 1