- dovecot - dovecot.org

Re: Sieve Symlink Creation
by dovecot＠ptld.com 13 Sep '22

13 Sep '22

> On 09-12-2022 12:16 pm, hi(a)zakaria.website wrote: > > It seems that dovecot doesn't understand the relative format and requires absolute format, per the documentation example. Perhaps find the code which parses the absolute path, and compile your own dovecot build, which can understand the path format you want? I did not find that. I want to learn more, can you link me the dovecot documentation you found explaining how absolute paths are required for sieve? > On 2022-08-25 13:32, dovecot(a)ptld.com wrote: >> The first time when the sieve files and folders get created, the active symlink is created as a full absolute path >> >> .active_sieve -> /mnt/email/domain/user/_sieve/filters.sieve >> >> After that, if you disable and enable the rule set the symlink gets recreated as relative >> >> .active_sieve -> filters.sieve >> >> How can i have the symlink always created as a relative path even on first time creation? >> Having a full absolute path over a mounted NSF is fragile. >> >> Dovecot 2.3.16 >> Pigeonhole 2.3.16 >> >> mail_home = /mnt/email/%d/%n/_dovecot >> mail_location = maildir:/mnt/email/%d/%n/_folders:INDEX=/mnt/email/%d/%n/_dovecot:CONTROL=/mnt/email/%d/%n/_dovecot >> plugin { >> sieve = file:~/../_sieve;active=~/../_sieve/.active_sieve >> sieve_max_script_size = 1M >> sieve_max_actions = 32 >> sieve_max_redirects = 4 >> sieve_quota_max_scripts = 20 >> sieve_quota_max_storage = 5M >> sieve_vacation_min_period = 1d >> sieve_vacation_use_original_recipient = no >> sieve_vacation_dont_check_recipient = no >> sieve_vacation_send_from_recipient = no >> sieve_redirect_envelope_from = sender >> sieve_user_email = %u >> }

2 1

real duplicates of some e-mails / dovecot-2.3.19
by Götz Reinicke 13 Sep '22

13 Sep '22

Hi, we have the issue, that some(!) e-mails we receive are duplicated when processed by dovecot and stored to the users inbox. The mails are binary identical, same message ID, same size etc. diff sees no difference …. For now we only see that it happens do small mails max. +- 5k in size. And in dose not happen for all mails, but some are spam, some are internal mails some are newsletter which are expected…. and it happens for different users. Dose anyone have/had a similar issue? Any suggestion or idea would be helpful. Thanks . Götz

2 1

Handling imap from outlook 365
by Todd Krein 12 Sep '22

12 Sep '22

I apologize if this has been answered before, but... Microsoft Outlook 365 doesn't allow a user to specify the account name for an imap acout, only the email address. Thus fred(a)smith.com<mailto:fred@smith.com> tries to log in as "fred(a)smith.com<mailto:fred@smith.com>" rather than "fred". Has anyone seen a way to fix this (Microsoft help boards are silent), perhaps by stripping the "@smith.com" during the logon procedure? Thanks, Todd Todd Krein | VP Hardware o:650.566.6657 m:408.857.0556 [Ooma_email_sig_11_ooma.jpg] ooma.com<http://ooma.com> _______________________________________ Ooma Confidential and Proprietary (including attachments if any)

3 2

Outlook 365 (RE: dovecot Digest, Vol 233, Issue 20)
by Todd Krein 12 Sep '22

12 Sep '22

Emilio, Thanks for the suggestions, but neither of these worked for me. Manual setup on Outlook 365 (I think as opposed to Outlook 202x), doesn't let you set the account name directly. It's being "helpful." Interestingly enough, if you set up as POP3, it realizes the account name is wrong and lets you enter it once you try to sync. Not so with IMAP. I was able to create the new account on the control panel, but outlook365 ignores all those accounts. Cheers, Todd -----Original Message----- ---------------------------------------------------------------------- Message: 1 Date: Sun, 11 Sep 2022 01:53:21 -0400 From: Emilio Augusto Lazo Zaia <emiliolazozaia(a)gmail.com> To: dovecot(a)dovecot.org Subject: Re: Solved (RE: Handling imap from outlook 365) Message-ID: <5eb6d25f-f9a9-88c5-db01-9306d0925a9c(a)gmail.com> Content-Type: text/plain; charset="utf-8"; Format="flowed" Manual setup or go to Windows Control Panel, Mail / Outlook section and the new account dialog should be like earlier versions of Office... hth Emilio Augusto Lazo Zaia On 9/9/22 16:18, Todd Krein wrote: > > (Sorry for the format, not sure how to reply to a single email in a > digest) > > ?[HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\setup] > > "DisableOffice365SimplifiedAccountCreation"=dword:00000001 > > and then chosen manual setup?? That lets us specify 'fred' as the username. > > Ken > > ? > > Ken, > > ????????????? OMG, you are a godsend. Yes, that fixed it completely! > > ????????????? Where do I send the beer? > > ????????????? Best regards, > > ????????????? Todd > > *Todd Krein *| VP Hardware > > o:650.566.6657 ? m:408.857.0556 > > Ooma_email_sig_11_ooma.jpg > > ooma.com <http://ooma.com> > > _______________________________________ > > Ooma Confidential and Proprietary (including attachments if any) >

1 0

Solved (RE: Handling imap from outlook 365)
by Todd Krein 11 Sep '22

11 Sep '22

(Sorry for the format, not sure how to reply to a single email in a digest) "[HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\setup] "DisableOffice365SimplifiedAccountCreation"=dword:00000001 and then chosen manual setup? That lets us specify 'fred' as the username. Ken " Ken, OMG, you are a godsend. Yes, that fixed it completely! Where do I send the beer? Best regards, Todd Todd Krein | VP Hardware o:650.566.6657 m:408.857.0556 [Ooma_email_sig_11_ooma.jpg] ooma.com<http://ooma.com> _______________________________________ Ooma Confidential and Proprietary (including attachments if any)

2 1

Unclear how to get both user and domain quotas to work
by Hans van Zijst 10 Sep '22

10 Sep '22

Hi, First of all: my apologies for this long message. I'm trying to post all the information anybody could need to help me on my way. What I'm trying to make is an installation where both users and domains can have quotas. Ideally I would configure a quota for a domain and set a quota of 0 for all users within that domain, so that mail will be accepted up to the point where the domain quota is reached. Setting up user quota was fairly easy, there's lots of documentation around and examples to take inspiration from. Not so much for domain quota however, or I'm really bad at searching the Net. I'm running Debian Bullseye here: MariaDB 10.5.12 Dovecot 2.3.13 Postfixadmin 3.3.10 I want to use dictionaries in MySQL, because eventually this will be a platform with several Dovecot and Postfix servers. At this time I'm only running one Dovecot installation and a few Postfix servers (two for communication with the outside world and one to do the virus and spam scanning). My current setup for user quota is how Postfixadmin wants it: MariaDB [postfixadmin]> desc quota2; +----------+--------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +----------+--------------+------+-----+---------+-------+ | username | varchar(100) | NO | PRI | NULL | | | bytes | bigint(20) | NO | | 0 | | | messages | int(11) | NO | | 0 | | +----------+--------------+------+-----+---------+-------+ 3 rows in set (0.001 sec) In /etc/dovecot/conf.d/90-quota.conf I have this: plugin { quota = dict:User quota::proxy::sqlquota quota_rule = *:bytes=1024M quota_rule2 = Trash:bytes=+100M quota_vsizes = yes quota_status_success = DUNNO quota_status_nouser = DUNNO quota_status_overquota = "552 5.2.2 Mailbox is full" } dict { sqlquota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } The SQL-configuration /etc/dovecot/dovecot-dict-sql.conf.ext is this: connect = host=... dbname=... user=... password=... map { pattern = priv/quota/storage table = quota2 username_field = username value_field = bytes } map { pattern = priv/quota/messages table = quota2 username_field = username value_field = messages } map { pattern = shared/expire/$user/$mailbox table = expires value_field = expire_stamp fields { username = $user mailbox = $mailbox } } I use LMTP to accept mail from Postfix; the quota-plugin is activated for LMTP, so every incoming mail should be counted. This works like a charm: if I don't configure a quota for a user, he gets the default 1GB, if I override it in Postfixadmin, then that's what he gets. I'm running quota-status on a TCP-port, so the gateway SMTP-servers can connect to Dovecot for a quotacheck to decide whether to accept or reject an incoming message. Again, this works flawlessly. I can't find any serious documentation about this mapping thing. In particular, what's with that "pattern"? All I can find in the documentation is: "The dict key must match exactly priv/quota/storage. The dict keys are hardcoded in the Dovecot code, so depending on what functionality you’re configuring you need to know the available dict keys used it." -- https://doc.dovecot.org/configuration_manual/dict/#dict-sql If anyone can point me at better documentation than the actual source code: please! I browsed through the quota-plugin source code, but I'm not a programmer and couldn't find what I thought I was looking for. That said, I'm not sure where I got the third "map" from, with the shared/expire pattern. I seem to have forgotten to document that bit of my journey. Now, domain quotas... I've tried all kinds of stuff, but at the moment I'm stuck with something that seems to almost work. I added a second quota root: plugin { quota2 = dict:Domain quota:%d:proxy::sqldomainquota quota2_rule = *:bytes=1024M quota2_status_success = DUNNO quota2_status_nouser = DUNNO quota2_status_overquota = "552 5.2.2 Domain quota exceeded" quota2_vsizes = yes } dict { sqldomainquota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } This dict refers to the same mapping as the one for user quotas, and I think that's the way it should be. Please correct me if I'm wrong. This creates a new user in the quota2 table, by the name of just the domain. Unfortunately, it simply fills it with the numbers from the first user it can find in that domain, not all users in that domain combined. What I think I should do, is change something in the dict so that it sums up all users in that domain, something like this: SELECT SUM(bytes) FROM quota2 WHERE username LIKE '%@domain'; Problem is that I can't find anything useful online with regards to this, I'm not even sure if I'm thinking in the right direction here. Any hints, suggestions or corrections? Or pointers to articles or documentation I might have missed? Kind regards, Hans

2 1

Re: Dead links at https://wiki.dovecot.org/Migration/MailFormat
by Joseph Tam 10 Sep '22

10 Sep '22

> These links: > > http://dag.wieers.com/rpm/packages/pine/pine-4.64-3.el4.rf.i386.rpm > http://staff.washington.edu/chappa/pine/info/maildir.html > > on this page > > https://wiki.dovecot.org/Migration/MailFormat > > at the Dovecot wiki do not lead to useful results. I lost the context of this thread, but if you're looking for mailutil or the older pine stuff, the project has forked inti alpine and you can find the source tarball at https://alpineapp.email/ Joseph Tam <jtam.home(a)gmail.com>

1 0

Old-stats plugin and fifo_listener permissions
by Grant Keller 10 Sep '22

10 Sep '22

Hello, Currently working on using the old-stats plugin in dovecot version 2.3.10.1. What file permissions are recommended for the old-stats-mail and old-stats-user sockets? I was seeing a lack of data from the doveadm oldstats dump command until I adjusted the default config to the following: service old-stats { fifo_listener old-stats-mail { group = mode = 0666 user = root } fifo_listener old-stats-user { group = mode = 0666 user = } } Not totally clear on which processes need read or write on those so any advice is appreciated.

1 0

Managesieve not working
by Francis Augusto Medeiros-Logeay 09 Sep '22

09 Sep '22

Hi, I am running dovecot 2.3.7.2 on ubuntu, and have a replication setup. I noticed that managesieve doesn't seem to be working. On my backup MX, doing a telnet to 4190 gets me the proper greetings, but doing the same on my main server just gave me the normal telnet "Escape character is..." I get the following info on the server: root@d0ba5bb19b6b:/# doveadm service status managesieve name: managesieve process_count: 0 process_avail: 0 process_limit: 1024 client_limit: 1 throttle_secs: 0 exit_failure_last: 0 exit_failures_in_sec: 0 last_drop_warning: 0 listen_pending: n listening: y doveadm_stop: n But when attempting to connect, it doesn't work. Any advice? Best, Francis

5 11

Dead links at https://wiki.dovecot.org/Migration/MailFormat
by kjohnson＠eclypse.org 09 Sep '22

09 Sep '22

Hi, These links: http://dag.wieers.com/rpm/packages/pine/pine-4.64-3.el4.rf.i386.rpm http://staff.washington.edu/chappa/pine/info/maildir.html on this page https://wiki.dovecot.org/Migration/MailFormat at the Dovecot wiki do not lead to useful results. The dag.wieers.com link seems to redirect to a server at packages.sw.be that does not exist (or does not answer today). Not archived at Wayback Machine as far as I can tell. The washington.edu link returns a 404. This page does appear to be archived by the Wayback Machine, but many of the captures reported by the Wayback Machine actually return no results. I have not checked every capture. I did find a capture from 4 Oct 2008 that does have content. This is the link to that capture. https://web.archive.org/web/20081004145454/http://staff.washington.edu/chap… Perhaps someone who attends to the Dovecot Wiki will find this information helpful in updating that page in a useful way. Regards, Ken

1 0

Re: Re: Unable to set quota-fs plugin [fixed]
by Jorge Concha C. 08 Sep '22

08 Sep '22

Hello, This solution don't work for me (in Rocky Linux 8 and 9). Do you know other solutions? Or maybe an additional step is necessary? Thanks > The issue was in the systemd service file. The option PrivateDevices was > setted. It prevents the service to have access to physical devices. I > removed this option and from there, quota is reported without errors. > > Thanks for your support > > Regards, > > - > Eric Grammatico _/) > Jorge Concha C. Area de Sistemas CEC - U. de Chile

2 2

username changed gumby@example.com -> gumby
by Tom 08 Sep '22

08 Sep '22

As you can see in this snip of the maillog, the domain part of the username is being stripped away: Sep 6 23:12:40 vaj dovecot[114637]: auth-worker(114662): Debug: conn unix:auth-worker (pid=114660,uid=97): auth-worker<2>: passwd(gumby(a)example.com,10.0.0.70,<YlSArw3oaqoKAABG>): Performing userdb lookup Sep 6 23:12:40 vaj dovecot[114637]: auth-worker(114662): Debug: conn unix:auth-worker (pid=114660,uid=97): auth-worker<2>: passwd(gumby(a)example.com,10.0.0.70,<YlSArw3oaqoKAABG>): lookup Sep 6 23:12:40 vaj dovecot[114637]: auth-worker(114662): Debug: conn unix:auth-worker (pid=114660,uid=97): auth-worker<2>: passwd(gumby(a)example.com,10.0.0.70,<YlSArw3oaqoKAABG>): username changed gumby(a)example.com -> gumby Sep 6 23:12:40 vaj dovecot[114637]: auth-worker(114662): Debug: conn unix:auth-worker (pid=114660,uid=97): auth-worker<2>: passwd(gumby,10.0.0.70,<YlSArw3oaqoKAABG>): Finished userdb lookup This means that my mail_location will fail since it stores mail by user and domain. dovecot -n: # 2.3.19.1 (9b53102964): /etc/dovecot/dovecot.conf # OS: Linux 5.19.6-200.fc36.x86_64 x86_64 Fedora release 36 (Thirty Six) # Hostname: vaj.example.com auth_debug = yes auth_default_realm = EXAMPLE.COM auth_gssapi_hostname = $ALL auth_krb5_keytab = /etc/dovecot/dovecot-krb5.keytab auth_mechanisms = gssapi login plain auth_realms = example.com auth_username_format = %u auth_verbose = yes debug_log_path = /var/log/dovecot/debug info_log_path = /var/log/dovecot/info log_path = /var/log/dovecot/error log_timestamp = "%Y.%m.%d %H:%M:%S " mail_debug = yes mail_location = maildir:%h/Maildir/%d mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } ssl = no ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_cipher_list = PROFILE=SYSTEM ssl_key = # hidden, use -P to show it userdb { driver = passwd } userdb { driver = passwd override_fields = mail=maildir:%h/Maildir/%d } verbose_ssl = yes How can I get around this issue? I need mailboxes stored by user/domain.

2 3

Permission denied UNIX perms appear ok (ACL/MAC wrong?))
by Austin Witmer 07 Sep '22

07 Sep '22

Hello all! Recently I upgraded my mail server to Ubuntu 22.04 LTS and ever since then I am periodically getting some dovecot errors like the below in my mail log. As far as I can tell, my unix perms are just fine. What is ACL/MAC? Aug 20 14:41:58 mail dovecot: imap(user(a)domain.com)<56316><1NieGKPmuOdKwxVI>: Error: Mailbox INBOX: stat(/mnt/volume1/mailserver/plain/maildir/domain.com/user/dovecot.index.lo… failed: Permission denied (euid=1000(austin) egid=1000(austin) UNIX perms appear ok (ACL/MAC wrong?)) And here is the listing showing the permissions for that file. austin@mail:~$ ls -la /mnt/volume1/mailserver/plain/maildir/domain.com/user/dovecot.index.log -rwxrwxr-- 1 austin austin 15796 Aug 20 14:41 /mnt/volume1/mailserver/plain/maildir/domain.com/user/dovecot.index.log What in the world is causing these errors, and what can I do about them? Thanks in advance! Austin Witmer

7 20

Config file syntax: secrets from file in key=value
by Tobias Florek 06 Sep '22

06 Sep '22

Hi! I'd like to set up proxy authentication. This works fine, but I cannot get the passwords in to be read from file. Specifically I have this passdb block. passdb { driver = passwd-file mechanisms = plain scram-sha-256 default_fields = proxy=y host=dovecot-backend master=imapc-master-user proxy_mech=plain pass=</run/secrets/dovecot.imapc-master-user/password args = /run/secrets/dovecot.generated.app-passwd-file/passwd } This sets the password to the string /run/secrets/dovecot.imapc-master-user/password. I'd like the password to be set to the content of said file. Is it possible to get the password from a file or less desirable from the environment? Reading https://doc.dovecot.org/configuration_manual/config_file/ I assume it's not. Cheers, Tobias Florek

2 3

Replication
by Silvio Siefke 05 Sep '22

05 Sep '22

Hello, I try the replication of two Dovecot servers, but some errors always appear. Maybe someone here has an idea what's going wrong. As an MTA I use OpenSMTPD. Thank You Silvio dovecot -n on MX 1 # 2.3.13 (89f716dc2): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.13 (cdd19fe3) # OS: Linux 5.10.0-16-amd64 x86_64 Debian 11.4 # Hostname: asia.sisi-systems.ovh auth_mechanisms = plain login doveadm_password = # hidden, use -P to show it doveadm_port = 20000 mail_gid = vmail mail_location = maildir:~/Maildir mail_plugins = " notify replication" mail_privileged_group = vmail mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext imapsieve vnd.dovecot.imapsieve namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = scheme=SHA512-CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } plugin { imapsieve_mailbox1_before = file:/var/vmail/sieve/global/learn-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/var/vmail/sieve/global/learn-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * mail_replica = tcp:192.168.1.112 quota = maildir:User quota quota_exceeded_message = Benutzer %u hat das Speichervolumen überschritten. / User %u has exhausted allowed storage space. replication_sync_timeout = 2 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-pipe sieve_plugins = sieve_imapsieve sieve_extprograms } protocols = lmtp imap pop3 sieve service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } } service doveadm { inet_listener { port = 20000 } } service imap-login { inet_listener imap { port = 143 } } service lmtp { unix_listener lmtp { group = vmail user = vmail } } service managesieve-login { inet_listener sieve { port = 4190 } } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 user = vmail } } ssl = required ssl_cert = </etc/lego/certificates/imap.sisi-systems.ovh.crt ssl_cipher_list = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file override_fields = uid=vmail gid=vmail home=/home/vmail/%d/%n } protocol imap { imap_idle_notify_interval = 29 mins mail_max_userip_connections = 20 mail_plugins = " notify replication quota imap_quota imap_sieve" } protocol lmtp { mail_plugins = " notify replication sieve notify push_notification" postmaster_address = network(a)sisi-systems.ovh } protocol pop3 { mail_max_userip_connections = 10 mail_plugins = " notify replication" } dovecot -n on MX 2 # 2.3.13 (89f716dc2): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.13 (cdd19fe3) # OS: Linux 5.10.0-15-amd64 x86_64 Debian 11.4 # Hostname: bulgaria.sisi-systems.ovh auth_mechanisms = plain login doveadm_password = # hidden, use -P to show it doveadm_port = 20000 mail_gid = vmail mail_location = maildir:~/Maildir mail_plugins = " notify replication" mail_privileged_group = vmail mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext imapsieve vnd.dovecot.imapsieve namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = scheme=SHA512-CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } plugin { imapsieve_mailbox1_before = file:/var/vmail/sieve/global/learn-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/var/vmail/sieve/global/learn-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * mail_replica = tcp:192.168.1.102 quota = maildir:User quota quota_exceeded_message = Benutzer %u hat das Speichervolumen überschritten. / User %u has exhausted allowed storage space. replication_sync_timeout = 2 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-pipe sieve_plugins = sieve_imapsieve sieve_extprograms } protocols = lmtp imap pop3 sieve service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } } service doveadm { inet_listener { port = 20000 } } service imap-login { inet_listener imap { port = 143 } } service lmtp { unix_listener lmtp { group = vmail user = vmail } } service managesieve-login { inet_listener sieve { port = 4190 } } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 user = vmail } } ssl = required ssl_cert = </etc/lego/certificates/imap.sisi-systems.ovh.crt ssl_cipher_list = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file override_fields = uid=vmail gid=vmail home=/home/vmail/%d/%n } protocol imap { imap_idle_notify_interval = 29 mins mail_max_userip_connections = 20 mail_plugins = " notify replication quota imap_quota imap_sieve" } protocol lmtp { mail_plugins = " notify replication sieve notify push_notification" postmaster_address = network(a)sisi-systems.ovh } protocol pop3 { mail_max_userip_connections = 10 mail_plugins = " notify replication" } Log MX 1 (asia) Sep 5 18:02:12 asia dovecot: replicator: Fatal: master: service(replicator): child 706077 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps) Sep 5 18:02:18 asia dovecot: replicator: Panic: data stack: Out of memory when allocating 268435496 bytes Sep 5 18:02:18 asia dovecot: replicator: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7f27434e84e2] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f27434e85fe] -> /usr/lib/dovecot/libdovecot.so.0(+0xfc49b) [0x7f27434f449b] -> /usr/lib/dovecot/libdovecot.so.0(+0xfc531) [0x7f27434f4531] -> /usr/lib/dovecot/libdovecot.so.0(+0x53aee) [0x7f274344baee] -> /usr/lib/dovecot/libdovecot.so.0(+0x53435) [0x7f274344b435] -> /usr/lib/dovecot/libdovecot.so.0(+0xf5d88) [0x7f27434edd88] -> /usr/lib/dovecot/libdovecot.so.0(+0x11b818) [0x7f2743513818] -> /usr/lib/dovecot/libdovecot.so.0(+0xf25f2) [0x7f27434ea5f2] -> /usr/lib/dovecot/libdovecot.so.0(+0xf26a9) [0x7f27434ea6a9] -> /usr/lib/dovecot/libdovecot.so.0(buffer_write+0x1e) [0x7f27434ea8be] -> dovecot/replicator(replicator_queue_push+0x14a) [0x5633c8c4eb1a] -> dovecot/replicator(+0x5296) [0x5633c8c4e296] -> dovecot/replicator(+0x493e) [0x5633c8c4d93e] -> dovecot/replicator(+0x4b1c) [0x5633c8c4db1c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7f2743509f59] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x132) [0x7f274350b592] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x50) [0x7f274350a000] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40) [0x7f274350a1c0] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f27434804e3] -> dovecot/replicator(main+0x18d) [0x5633c8c4ccad] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea) [0x7f2743254d0a] -> dovecot/replicator(_start+0x2a) [0x5633c8c4cd6a] Sep 5 18:02:18 asia dovecot: replicator: Fatal: master: service(replicator): child 706082 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps) Log MX 2 (bulgaria) Sep 5 13:02:05 bulgaria dovecot: replicator: Panic: data stack: Out of memory when allocating 268435496 bytes Sep 5 13:02:05 bulgaria dovecot: replicator: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7f813fa394e2] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f813fa395fe] -> /usr/lib/dovecot/libdovecot.so.0(+0xfc49b) [0x7f813fa4549b] -> /usr/lib/dovecot/libdovecot.so.0(+0xfc531) [0x7f813fa45531] -> /usr/lib/dovecot/libdovecot.so.0(+0x53aee) [0x7f813f99caee] -> /usr/lib/dovecot/libdovecot.so.0(+0x53435) [0x7f813f99c435] -> /usr/lib/dovecot/libdovecot.so.0(+0xf5d88) [0x7f813fa3ed88] -> /usr/lib/dovecot/libdovecot.so.0(+0x11b818) [0x7f813fa64818] -> /usr/lib/dovecot/libdovecot.so.0(+0xf25f2) [0x7f813fa3b5f2] -> /usr/lib/dovecot/libdovecot.so.0(+0xf26a9) [0x7f813fa3b6a9] -> /usr/lib/dovecot/libdovecot.so.0(buffer_write+0x1e) [0x7f813fa3b8be] -> dovecot/replicator(replicator_queue_push+0x14a) [0x5646d37c5b1a] -> dovecot/replicator(+0x5296) [0x5646d37c5296] -> dovecot/replicator(+0x493e) [0x5646d37c493e] -> dovecot/replicator(+0x4b1c) [0x5646d37c4b1c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7f813fa5af59] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x132) [0x7f813fa5c592] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x50) [0x7f813fa5b000] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40) [0x7f813fa5b1c0] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f813f9d14e3] -> dovecot/replicator(main+0x18d) [0x5646d37c3cad] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea) [0x7f813f7a5d0a] -> dovecot/replicator(_start+0x2a) [0x5646d37c3d6a] Sep 5 13:02:05 bulgaria dovecot: replicator: Fatal: master: service(replicator): child 144867 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps)

5 6

Bypass quota check
by Gabriele Nencioni 05 Sep '22

05 Sep '22

Hi all, I have the following quota configuration: lmtp_rcpt_check_quota = no mail_plugins = notify mail_log quota quota = dict:User quota::file:%h/dovecot-quota quota_exceeded_message = Quota exceeded quota_rule2 = Trash:storage=+100M quota_warning = storage=100%% quota-warning -q 100 -n %n -d %d -e OverQuota quota_warning2 = storage=80%% quota-warning -q 80 -n %n -d %d -e FillQuota quota_warning3 = -storage=99%% quota-warning -q 99 -n %n -d %d -e InQuota quota_full_tempfail = yes service quota-warning { executable = script /usr/local/dovecot/quotamanager.sh unix_listener quota-warning { mail_plugins = notify mail_log quota imap_quota imap_sieve mail_plugins = notify mail_log quota sieve and the quota_rule (per-user) is retrieved by a specific SQL query in my userdb. I'm wondering if there is a way to send an email to an account even if it's in overquota? In other words: is there a way to bypass (or skip) the quota check, maybe setting a sort of ACL, for example if an email comes from a specific ip address? Thanks in advance Regards, -- Gabriele Nencioni

2 1

Thousands of SSL certificates stalls new logins during reload - problem with Dovecot config process
by Bartosz Kwitniewski 05 Sep '22

05 Sep '22

Hello, I'm running a dovecot 2.3.19.1 server that has around 6000 SSL certificates in separate config files, each containing: local_name "domain" { ssl_cert = ... ssl_key = ... } When new certificate is added, dovecot is reloaded (around 20 times a day). When dovecot is being reloaded, users are unable to log in for around 30 seconds. The main problem here seems to be that during reload, new config process is immediately designated as the one serving config requests and then it starts parsing config files, which takes around 20-30 seconds. If it would parse config files first, and only then would become a new process for serving config requests, then it would probably solve the problem. Or perhaps there is a better way to load new certificates or a way to optimize? There is another problem with config process and shutdown_clients=no. We do not want to disconnect users during reload, because e.g. Thunderbird displays a popup that server is shutting down. When there are long lasting IMAP connections from Google and other services that aggregate e-mail, old config process is not being killed. Because config process with ~6000 certificates is using ~1 GB of RAM, it can quickly rise to 20 GB of memory used. This is not a big issue however, because we have created a task that kills old processes, but there could be a built-in mechanism to solve that problem. I have created minimal configuration and scripts to recreate problem. Reproduction steps below. Configuration (doveadm config -n): ========== # 2.3.19.1 (9b53102964): /etc/dovecot/dovecot.conf # OS: Linux 4.18.0-372.9.1.1.lve.el8.x86_64 x86_64 CloudLinux release 8.6 (Leonid Kadenyuk) # Hostname: - auth_mechanisms = plain login default_client_limit = 12288 default_process_limit = 2048 default_vsz_limit = 1 G first_valid_uid = 1000 mail_location = maildir:~/mail mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = scheme=CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } service auth-worker { user = $default_internal_user } service auth { user = $default_internal_user } service config { vsz_limit = 4 G } service imap-login { process_min_avail = 20 service_count = 1 } service imap { process_limit = 4096 } service pop3-login { process_min_avail = 20 service_count = 1 } service pop3 { process_limit = 512 } shutdown_clients = no ssl_cert = </etc/dovecot/certs/example.org.crt ssl_cipher_list = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:DHE-DSS-AES128-GCM-SHA256:DHE-DSS-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-DSS-AES128-SHA256:DHE-DSS-AES256-SHA256:DHE-DSS-AES128-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA:ECDH-ECDSA-AES128-GCM-SHA256:ECDH-ECDSA-AES256-GCM-SHA384:ECDH-RSA-AES128-GCM-SHA256:ECDH-RSA-AES256-GCM-SHA384:ECDH-ECDSA-AES128-SHA256:ECDH-ECDSA-AES256-SHA384:ECDH-ECDSA-AES128-SHA:ECDH-RSA-AES128-SHA256:ECDH-RSA-AES256-SHA384:ECDH-RSA-AES128-SHA:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305 ssl_dh = </etc/dovecot/dh.pem ssl_key = </etc/dovecot/certs/example.org.key ssl_options = no_compression ssl_prefer_server_ciphers = yes userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } verbose_proctitle = yes protocol imap { mail_max_userip_connections = 2048 } protocol pop3 { mail_max_userip_connections = 2048 } local_name domain4587.example.org mail.domain4587.example.org { ssl_cert = </etc/dovecot/certs/domain4587.example.org.crt ssl_key = </etc/dovecot/certs/domain4587.example.org.key } local_name domain4588.example.org mail.domain4588.example.org { ssl_cert = </etc/dovecot/certs/domain4588.example.org.crt ssl_key = </etc/dovecot/certs/domain4588.example.org.key } (...) 5000 certificates goes here ========== /etc/dovecot/users: ========== user@domain1.example.org:{SHA512-CRYPT}$6$...:1000:1000::/home/test/mail/domain1.example.org/user:: user@domain2.example.org:{SHA512-CRYPT}$6$...:1000:1000::/home/test/mail/domain2.example.org/user:: (...) 5000 users goes here, but one should be enough for testing. ========== Log file from dovecot reload: ========== Sep 02 12:37:24 dovecot[264040]: imap-login: Login: user=<user(a)domain1.example.org>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=264964, TLS, session=<eQXGUK/ngJJ/AAAB> Sep 02 12:37:24 dovecot[264040]: imap(user(a)domain1.example.org)<264964><eQXGUK/ngJJ/AAAB>: Disconnected: Logged out in=25 out=782 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 Sep 02 12:37:25 systemd[1]: Reloading Dovecot IMAP/POP3 email server. Sep 02 12:37:26 dovecot[263234]: master: Warning: SIGHUP received - reloading configuration Sep 02 12:37:36 dovecot[263234]: master: Error: Error reading configuration: read(/usr/local/var/run/dovecot/config) failed: read(size=8192) failed: Interrupted system call - Also failed to read config by executing doveconf: /usr/local/var/run/dovecot/config is a UNIX socket Sep 02 12:37:36 systemd[1]: Reloaded Dovecot IMAP/POP3 email server. Sep 02 12:37:36 dovecot[264040]: imap-login: Fatal: Error reading configuration: read(/usr/local/var/run/dovecot/config) failed: read(size=8192) failed: Interrupted system call - Also failed to read config by executing doveconf: stat(/usr/local/var/run/dovecot/config) failed: No such file or directory (path is from CONFIG_FILE environment) Sep 02 12:37:36 dovecot[264040]: imap-login: Fatal: Error reading configuration: read(/usr/local/var/run/dovecot/config) failed: read(size=8192) failed: Interrupted system call - Also failed to read config by executing doveconf: stat(/usr/local/var/run/dovecot/config) failed: No such file or directory (path is from CONFIG_FILE environment) Sep 02 12:37:42 dovecot[264040]: imap-login: Fatal: Error reading configuration: read(/usr/local/var/run/dovecot/config) failed: read(size=8192) failed: Interrupted system call - Also failed to read config by executing doveconf: stat(/usr/local/var/run/dovecot/config) failed: No such file or directory (path is from CONFIG_FILE environment) Sep 02 12:37:46 dovecot[264040]: imap-login: Fatal: Error reading configuration: read(/usr/local/var/run/dovecot/config) failed: read(size=8192) failed: Interrupted system call - Also failed to read config by executing doveconf: /usr/local/var/run/dovecot/config is a UNIX socket (path is from CONFIG_FILE environment) Sep 02 12:37:46 dovecot[264040]: imap-login: Fatal: Error reading configuration: read(/usr/local/var/run/dovecot/config) failed: read(size=8192) failed: Interrupted system call - Also failed to read config by executing doveconf: /usr/local/var/run/dovecot/config is a UNIX socket (path is from CONFIG_FILE environment) Sep 02 12:37:46 dovecot[263234]: master: Error: service(imap-login): command startup failed, throttling for 2.000 secs Sep 02 12:37:46 dovecot[264040]: imap-login: Fatal: Error reading configuration: read(/usr/local/var/run/dovecot/config) failed: read(size=8192) failed: Interrupted system call - Also failed to read config by executing doveconf: /usr/local/var/run/dovecot/config is a UNIX socket (path is from CONFIG_FILE environment) Sep 02 12:37:47 dovecot[264040]: imap-login: Fatal: Error reading configuration: read(/usr/local/var/run/dovecot/config) failed: read(size=8192) failed: Interrupted system call - Also failed to read config by executing doveconf: stat(/usr/local/var/run/dovecot/config) failed: No such file or directory (path is from CONFIG_FILE environment) Sep 02 12:37:47 dovecot[264040]: imap-login: Fatal: Error reading configuration: read(/usr/local/var/run/dovecot/config) failed: read(size=8192) failed: Interrupted system call - Also failed to read config by executing doveconf: /usr/local/var/run/dovecot/config is a UNIX socket (path is from CONFIG_FILE environment) Sep 02 12:37:48 dovecot[264040]: imap-login: Fatal: Error reading configuration: read(/usr/local/var/run/dovecot/config) failed: read(size=8192) failed: Interrupted system call - Also failed to read config by executing doveconf: stat(/usr/local/var/run/dovecot/config) failed: No such file or directory (path is from CONFIG_FILE environment) Sep 02 12:37:48 dovecot[264040]: imap-login: Fatal: Error reading configuration: read(/usr/local/var/run/dovecot/config) failed: read(size=8192) failed: Interrupted system call - Also failed to read config by executing doveconf: /usr/local/var/run/dovecot/config is a UNIX socket (path is from CONFIG_FILE environment) Sep 02 12:37:48 dovecot[263234]: master: Error: service(imap-login): command startup failed, throttling for 4.000 secs Sep 02 12:37:49 dovecot[264040]: imap-login: Disconnected: Connection closed: read(size=737) failed: Connection reset by peer (no auth attempts in 5 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1, TLS handshaking: read(size=737) failed: Connection reset by peer, session=<eNlHUq/njJJ/AAAB> Sep 02 12:37:49 dovecot[264040]: imap-login: Login: user=<user(a)domain1.example.org>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=265059, TLS, session=<duBHUq/njpJ/AAAB> Sep 02 12:37:49 dovecot[264040]: imap(user(a)domain1.example.org)<265059><duBHUq/njpJ/AAAB>: Disconnected: Logged out in=25 out=790 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 ========== Script for testing login: ========== test-imap.expect ========== #!/usr/bin/expect -f set timeout 5 expect_before { timeout { puts "Error: Timeout"; exit 1 } eof { puts "Error: EOF"; exit 1 } } log_user 0 spawn openssl s_client -connect 127.0.0.1:993 expect "* OK" send -- "C1 LOGIN user(a)domain1.example.org PASSWORD\n" expect "C1 OK" send -- "C2 SELECT Inbox\n" expect "C2 OK" send -- "C3 LOGOUT\n" expect "C3 OK" expect eof ========== Script for testing long lasting login: ========== test-imap-long.expect ========== #!/usr/bin/expect -f set timeout -1 expect_before { timeout { puts "Error: Timeout"; exit 1 } eof { puts "Error: EOF"; exit 1 } } log_user 0 spawn openssl s_client -connect 127.0.0.1:993 expect "* OK" send -- "C1 LOGIN user(a)domain1.example.org PASSWORD\n" expect "C1 OK" send -- "C2 SELECT Inbox\n" expect "C2 OK" ========== Reproduction steps (I can attach full package for testing with 5000 self-signed certificates): 1. Start dovecot 2.3.19.1 with 5000 certificates in configuration files using config above. 2. Start test-imap.expect on another console, like that: while true; do date_now=$(date "+%Y-%m-%d %H:%M:%S"); echo -n "[$date_now] Test: "; ./imap-test.expect && echo "OK"; sleep 1; done 3. Reload dovecot. 4. Check logs and test-imap.expect output. Reproduction steps for config process not being terminated: 1. Start dovecot 2.3.19.1 using config above. 2. Start test-imap-long.expect (the second script) on another console. 3. Reload dovecot. 4. Start another test-imap-long.expect on another console. 5. Reload dovecot. 6. Check process list for dovecot config. Best regards, -- Bartosz Kwitniewski

6 9

Call procmail after sieve
by George Asenov 01 Sep '22

01 Sep '22

Hello, I'm trying to achieve the following scenario with dovecot + sieve + procmail. Dovecot is set as LDA in postfix (if this makes any difference) I need to set sieve that after it has executed all it's scripts (including before, ~/.sieve etc) and if keep is in still in effect to call procmail to also execute the custom user filters and then return (if it is not forwarded elsewhere or some) to dovecot for normal delivery. If you ask this I need this for backward compatibility. I now use procmail for local delivery,spam/virus filtering, and users have set a lot of custom filters/redirects. mailbox_command = /usr/bin/procmail-wrapper -o -a $DOMAIN -d $LOGNAME I want to migrate to dovecot as lda and sieve for filtering but to keep procmail working for a while. I have tried to follow (partially) this guide https://www.enricozini.org/blog/2022/debian/migrating-from-procmail-to-siev… but procmail fails to execute ########################## Aug 30 15:22:26 uk7 dovecot[112151]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: Debug: program exec:/var/lib/dovecot/sieve-pipe/procmail: Establishing connection Aug 30 15:22:26 uk7 dovecot[112151]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: Debug: program exec:/var/lib/dovecot/sieve-pipe/procmail: Forked child process Aug 30 15:22:26 uk7 dovecot[112151]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: Debug: program exec:/var/lib/dovecot/sieve-pipe/procmail (112153): Connected to program Aug 30 15:22:26 uk7 dovecot[112151]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: Debug: program exec:/var/lib/dovecot/sieve-pipe/procmail (112153): Finished streaming payload to program Aug 30 15:22:26 uk7 dovecot[112151]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: Debug: program exec:/var/lib/dovecot/sieve-pipe/procmail (112153): Finished input to program Aug 30 15:22:26 uk7 dovecot[112151]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: Debug: program exec:/var/lib/dovecot/sieve-pipe/procmail (112153): Disconnected Aug 30 15:22:26 uk7 dovecot[112151]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: Debug: program exec:/var/lib/dovecot/sieve-pipe/procmail (112153): Waiting for program to finish after 0 msecs (timeout = 10000 msecs) Aug 30 15:22:26 uk7 dovecot[112153]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: Fatal: execvp(/var/lib/dovecot/sieve-pipe/procmail) failed: Permission denied Aug 30 15:22:26 uk7 dovecot[112151]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: Debug: program exec:/var/lib/dovecot/sieve-pipe/procmail (112153): Child process ended Aug 30 15:22:26 uk7 dovecot[112151]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: program exec:/var/lib/dovecot/sieve-pipe/procmail (112153): Terminated with non-zero exit code 75 Aug 30 15:22:26 uk7 dovecot[112151]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: Debug: program exec:/var/lib/dovecot/sieve-pipe/procmail (112153): Destroy Aug 30 15:22:26 uk7 dovecot[112151]: lda(test-uk7.teststring567.tk)<112151><BlNhECIdDmMXtgEAsVjU+A>: Error: sieve: failed to execute to program `procmail': refer to server log for more information. [2022-08-30 15:22:26] ############################### i couldn't find the logs referred here some relative (on my opinion) configs: ################################ #/etc/dovecot/conf.d/90-sieve.conf plugin { sieve = file:~/sieve;active=~/.dovecot.sieve sieve_plugins = sieve_extprograms sieve_extensions = +vnd.dovecot.pipe sieve_pipe_bin_dir = /var/lib/dovecot/sieve-pipe sieve_after = /var/lib/dovecot/sieve_after sieve_trace_dir = ~/.sieve-trace sieve_trace_level = matching sieve_trace_debug = yes } #################################### #/var/lib/dovecot/sieve-pipe/procmail #!/bin/sh exec /usr/bin/procmail ##################################### #/var/lib/dovecot/sieve_after/procmail.sieve require "vnd.dovecot.pipe"; pipe "procmail"; ##################################### #cat /etc/procmailrc SHELL="/bin/bash" SENDMAIL="/usr/sbin/sendmail" SENDMAILFLAGS="-oi -t"" LOGFILE="/var/log/procmail.log" # fully define here so user .procmailrc can use it too DELIVER="/usr/libexec/dovecot/deliver -d $LOGNAME" # fallback: DEFAULT="$HOME/Maildir/" MAILDIR="$HOME/Maildir/" # deliver spam to spam folder :0 w * ^X-Spam-Status: Yes | $DELIVER -m spam # uncomment next line to support user .procmailrc files INCLUDERC=$HOME/.procmailrc # deliver to INBOX and stop :0 w | $DELIVER ######################################### Thank you in advance

5 8

Lazy Expunge - why oh why deprecating namespace storage for this
by Matt Bryant 01 Sep '22

01 Sep '22

Hi Dovecot, Noticed on your web site that you have marked lazy_expunge storage location to namespace as deprecated since v2.3.0 and suggest a single mailbox with acl is the way to go. This seems to be a backward step for those that make use of the alt storage facility. Is there anyway we can persuade you NOT to deprecate this - it still works atm Why ? Well scenario time .... Installations make use of alt-storage feature so that new messages can be stored along with indexes etc on faster storage, whilst offloading older less viewed mail to a different storage tier. With storage to namespace - that namespace can have a location set that separates it from the mailbox (maybe even on a 3rd tier of storage) BUT with the mailbox solution then any deleted mail will in fact return from the alternate storage to the primary storage, and then will need to have a job run to alt-move it back off the faster storage to sit with the older messages and also can no longer be a potential 3rd tier of storage. This seems crazy and in fact some of reason mdbox is avoided since purging an mdbox means that any messages on alt-storage gets pulled back to primary storage. Alternately are there plans to allow a mailbox to have a 'location' in which case the location of the expunge mailbox could be set differently ? rgds Matt

1 0

where to setup virtual_mailbox_maps
by frakass 31 Aug '22

31 Aug '22

Hello, I have a domain in virtual_mailbox_domains: aaa.com I have also the virtual_alias_domains which include: bbb.com I know how to forward x(a)bbb.com to y(a)aaa.com by setting up the file "virtual_alias_maps": x(a)bbb.com y(a)aaa.com (and run postmap after the changes.) But, how can I setup virtual_mailbox_maps (if I name this correctly)? for example, 111(a)aaa.com forwards to 222(a)aaa.com. Thank you.

2 1

multiple / backup sql servers for sql server access
by Jack Snodgrass 31 Aug '22

31 Aug '22

I am using this file: dovecot-sql.conf.ext and in there I have a connect = "host=<dbserver> dbname=<dbname> user=<dbuser> password=<dbpass>" My <dbserver> was down and I lost mail access for a few days before I realized that there was an issue. How can I specify a backup server so that if my primary sql server goes down, a backup sql server will be queried? -- jack

3 4

Redhat 9 Repository for Dovecot
by Istiak Ferdous 29 Aug '22

29 Aug '22

Hello, Redhat 9 is publicly released for some time. Is there any plan to provide repository for it? http://repo.dovecot.org/ce-2.3-latest/rhel/ https://developers.redhat.com/articles/2022/05/18/whats-new-red-hat-enterpr… Thanks, Istiak Ferdous

2 4

Understanding Auth-Worker Logging
by dovecot＠ptld.com 29 Aug '22

29 Aug '22

Sometimes when auth-worker gets logged there is an extra 'field' combined with the username and IP inside the sql() section. dovecot[911]: auth-worker(8131): conn unix:auth-worker (pid=3870,uid=97): auth-worker<2>: sql(user(a)example.com,xxx.xxx.xxx.xxx,<8Q4ycCznAPdoiAwp>): Password mismatch (SHA1 of given password: 6ef33886cc5e17a60590cb4badac98d2960b6914) What is the "<8Q4ycCznAPdoiAwp>" and why is it logged only sometimes? Is there any documentation explaining what's inside of logs for dovecot?

2 1

Replication not working - GUIDs conflict - will be merged later
by Patrick Westenberg 28 Aug '22

28 Aug '22

Hi everyone, I have a weird problem with replication that I'm unable to solve. A new account is sychronized from an external provider via imapsync. The mails end up on my backend1. I see that the folder structure is immediately replicated to backend2. However, a lot of mails are missing and "doveadm replicator status" also states that something failed: priority fast sync full sync success sync failed mail(a)example.com none 00:02:36 00:39:47 - y There are no error log entries regarding this user at all. After some research I tried to start the replication manually with "doveadm -D backup -u mail(a)example.com -d tcp:x.y.z.11" and finally I got an error message: Jul 31 13:55:37 doveadm(mail(a)example.com)<11341><rm1YCblt5mJNLAAAJFg/Tg>: Debug: brain M: Mailbox INBOX: local=e74590221b6ce6620d29000024583f4e/0/1, remote=20a9ce2b1c6ce662244e0000baba0ddd/0/1: GUIDs conflict - will be merged later As a matter of fact, the mails in the inbox are the ones that are missing on backend2. I always end up with this error, no matter what I do: - I completely removed the folder structure on backend2. - I removed all database entries. - I removed this user from the replication, ran imapsync again followed by "doveadm -D backup ..." I also removed fts-flatcurve to rule this out as a cause of error. I have no idea what to do. This configuration worked for months. I got this error with 2.3.17.1 and 2.3.19.1 Any hints would be highly appreciated. Regards Patrick # 2.3.19.1 (9b53102964): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.19 (4eae2f79) auth_master_user_separator = * auth_mechanisms = plain login doveadm_password = # hidden, use -P to show it doveadm_port = 12345 listen = x.y.z.12 lmtp_save_to_detail_mailbox = yes log_debug = category=fts-flatcurve log_path = /var/log/dovecot.log mail_debug = yes mail_home = /srv/mail/%Ld/%Ln mail_location = maildir:~/Maildir mail_plugins = quota notify replication 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 metric imapc_traffic { fields = bytes_in bytes_out filter = event=imap_command_finished group_by = user } namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spamverdacht { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = INBOX/ separator = / type = private } passdb { args = /usr/local/etc/dovecot/master-user driver = passwd-file master = yes pass = yes } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { mail_replica = tcp:x.y.z.11 quota = count:User quota quota_grace = 25M quota_rule2 = INBOX/Trash:storage=+100M quota_status_nouser = DUNNO quota_status_success = DUNNO quota_vsizes = yes quota_warning = storage=100%% quota-full %u quota_warning2 = storage=95%% quota-warning 95 %u quota_warning3 = storage=80%% quota-warning 80 %u quota_warning4 = -storage=100%% quota-ok %u sieve = ~/.dovecot.sieve sieve_after = /usr/local/etc/dovecot/sieve/sieve_after.sieve sieve_default = /usr/local/etc/dovecot/sieve/default.sieve sieve_dir = ~/sieve sieve_extensions = +editheader } protocols = imap pop3 lmtp sieve service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } } service auth { unix_listener auth-userdb { group = vmail mode = 0666 user = vmail } } service config { unix_listener config { mode = 0600 user = vmail } } service doveadm { inet_listener { port = 12345 } } service imap-login { process_min_avail = 2 service_count = 0 } service lmtp { executable = lmtp -L inet_listener lmtp { address = x.y.z.12 port = 24 } process_min_avail = 20 } service managesieve-login { inet_listener sieve { port = 4190 } } service quota-full { executable = script /usr/local/etc/dovecot/quota_full.sh unix_listener quota-full { user = vmail } user = root } service quota-ok { executable = script /usr/local/etc/dovecot/quota_ok.sh unix_listener quota-ok { user = vmail } user = root } service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { port = 12340 } } service quota-warning { executable = script /usr/local/etc/dovecot/quota_warning.sh unix_listener quota-warning { user = vmail } user = root } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 user = vmail } } ssl = required ssl_cert = </etc/ssl/certs/bundle.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 } userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } verbose_proctitle = yes protocol lmtp { info_log_path = /var/log/dovecot-lmtp.log mail_plugins = quota notify replication sieve } protocol imap { mail_max_userip_connections = 40 mail_plugins = quota notify replication imap_quota }

5 9

Sieve Symlink Creation
by dovecot＠ptld.com 26 Aug '22

26 Aug '22

The first time when the sieve files and folders get created, the active symlink is created as a full absolute path .active_sieve -> /mnt/email/domain/user/_sieve/filters.sieve After that, if you disable and enable the rule set the symlink gets recreated as relative .active_sieve -> filters.sieve How can i have the symlink always created as a relative path even on first time creation? Having a full absolute path over a mounted NSF is fragile. Dovecot 2.3.16 Pigeonhole 2.3.16 mail_home = /mnt/email/%d/%n/_dovecot mail_location = maildir:/mnt/email/%d/%n/_folders:INDEX=/mnt/email/%d/%n/_dovecot:CONTROL=/mnt/email/%d/%n/_dovecot plugin { sieve = file:~/../_sieve;active=~/../_sieve/.active_sieve sieve_max_script_size = 1M sieve_max_actions = 32 sieve_max_redirects = 4 sieve_quota_max_scripts = 20 sieve_quota_max_storage = 5M sieve_vacation_min_period = 1d sieve_vacation_use_original_recipient = no sieve_vacation_dont_check_recipient = no sieve_vacation_send_from_recipient = no sieve_redirect_envelope_from = sender sieve_user_email = %u }

2 8