- dovecot - dovecot.org

MySQL connection keepalive for pass/auth db
by dvuoud＠at.encryp.ch 14 Nov '23

14 Nov '23

Hello, Is it possible to configure SQL connection keepalive for Dovecot? Probably what I have to do is "Note that the SQL backend must be used via Proxy", however I was unsucsessful in figuring out how can I setup this to get use of connection pool at Dovecot. Thanks. > $ dovecot --version > 2.3.20 (80a5ac675d) > $ dovecot -n > # 2.3.20 (80a5ac675d): /etc/dovecot/dovecot.conf > # Pigeonhole version 0.5.20 (149edcf2) > # OS: Linux 6.1.57 x86_64 Gentoo Base System release 2.14 > # Hostname: flopster > import_environment = TZ CORE_OUTOFMEM CORE_ERROR TZ=:/etc/localtime > lmtp_add_received_header = no > mail_gid = vmail > mail_location = maildir:~/.maildir > mail_server_admin = mailto:me@at.encryp.ch > 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 editheader > metric auth_failures { > filter = event=auth_request_finished AND NOT success=yes > } > metric auth_success { > filter = event=auth_request_finished AND success=yes > } > metric imap_command { > filter = event=imap_command_finished > group_by = cmd_name tagged_reply_state > } > metric mail_delivery { > filter = event=mail_delivery_finished > group_by = duration:exponential:1:5:10 > } > metric smtp_command { > filter = event=smtp_server_command_finished > group_by = cmd_name status_code duration:exponential:1:5:10 > } > 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 = * > driver = pam > } > passdb { > args = /etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > plugin { > sieve = file:~/sieve;active=~/.dovecot.sieve > sieve_extensions = +editheader > } > protocols = imap lmtp sieve > service auth { > unix_listener /var/spool/postfix/private/auth { > group = postfix > mode = 0660 > user = postfix > } > vsz_limit = 2 G > } > service dict { > unix_listener dict-passdb { > mode = 0600 > user = vmail > } > unix_listener dict-userdb { > mode = 0600 > user = vmail > } > } > service lmtp { > unix_listener /var/spool/postfix/private/dovecot-lmtp { > group = postfix > mode = 0600 > user = postfix > } > } > service managesieve-login { > inet_listener sieve { > port = 4190 > } > } > service stats { > inet_listener http { > address = [::] > port = 9900 > } > } > ssl = required > ssl_cert = </etc/ssl/dovecot/server.crt > ssl_dh = # hidden, use -P to show it > ssl_key = # hidden, use -P to show it > userdb { > driver = passwd > } > userdb { > args = /etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > protocol lmtp { > mail_plugins = " sieve" > postmaster_address = postmaster(a)at.encryp.ch > } > protocol lda { > mail_plugins = sieve > } > local_name flopster.at.encryp.ch { > ssl_cert = </etc/ssl/domains/flopster.at.encryp.ch/fullchain > ssl_key = # hidden, use -P to show it > }

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ldap passdb, userdb imap auth sasl and lmtp
by bd730c5053df9efb 14 Nov '23

14 Nov '23

Hi! I'm trying to setup dovecot 2.3.17 such that it authenticates users against a samba4 ad dc when they connect through imap. I would also need dovecot to authenticate the same users through sasl so that postfix can relay mails based on the user's auth and finally I would also need for an lmtp service that maps email addresses into AD users. I've been tinkering with dovecot-ldap.conf.ext using auth_bind = yes and no, with all sorts of pass_filters, user_filter, pass_attr and user_attr and I just can't figure out how it works. I assume that for the auth part (both imap and sasl) I would rather benefit with using auth_bind = yes and auth_bind_userdn = %u and I seem to be able to authenticate the user but I can't get the passdb to prefetch the userdb attributes. I also assume that for lmtp to be able to fetch the ad information it would be necessary for dovecot to be able to bind to the ad ldap server with a "service account" to be able to query the ldap server and I haven't been able to figure out how to have both kinds of auth schemas. Does anyone know of some documentation that could clarify some of this issues, I have been searching the web for days to no avail. I'm sorry I can't show what I have tried for I have tried so many things with more or less the same lack of success that I wouldn't know where to start. Thanks in advance. Best regards, Dave.

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More information on dict proxy
by Steve 09 Nov '23

09 Nov '23

Hello, I'm working on an implementation of a dict server. I've looked through all your documentation but can't seem to find how I can create the proper URI to direct the quota plugin to use a TCP socket instead of a UNIX socket. I'd appreciate any insight you can provide. Steve

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file dotlock create
by The Doctor 07 Nov '23

07 Nov '23

I am seeing errors in our log as follows Nov 07 14:20:06 POP3(user937):Error: Mailbox INBOX: file_dotlock_create(/var/mail/user937) failed: Permission denied (euid=937(user937) egid=100(user) missing +w perm: /var/mail, we're not in group 6(mail), dir owned by 0:6 mode=0775) (set mail_privileged_group=mail) Nov 07 14:21:03 IMAP(user3094):Error: Mailbox INBOX: file_dotlock_create(/var/mail/user3094) failed: Permission denied (euid=3094(user3094) egid=100(user) missing +w perm: /var/mail, we're not in group 6(mail), dir owned by 0:6 mode=0775) (set mail_privileged_group=mail) Nov 07 14:21:03 IMAP(user3094):Error: Mailbox INBOX: file_dotlock_create(/var/mail/user3094) failed: Permission denied (euid=3094(user3094) egid=100(user) missing +w perm: /var/mail, we're not in group 6(mail), dir owned by 0:6 mode=0775) (set mail_privileged_group=mail) Nov 07 14:21:03 IMAP(user3094):Error: Mailbox INBOX: file_dotlock_create(/var/mail/user3094) failed: Permission denied (euid=3094(user3094) egid=100(user) missing +w perm: /var/mail, we're not in group 6(mail), dir owned by 0:6 mode=0775) (set mail_privileged_group=mail) /var/mail is set to 1775 Running FreeBSD 14.0-RC4 -- Member - Liberal International This is doctor(a)nk.ca Ici doctor(a)nk.ca Yahweh, King & country!Never Satan President Republic!Beware AntiChrist rising! Look at Psalms 14 and 53 on Atheism ; unsubscribe from Google Groups to be seen Suffering will continue until we stop believing lies. -unknown Beware https://mindspring.com

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mail boxes on net mounted filesystem with multiple Dovecots
by lejeczek 07 Nov '23

07 Nov '23

Hi guys. I see that with mailboxes stored on a network mount-point and more than one box with Dovecot using such a mailbox, Dovecots step on each others toes. ... lmtp(minemail(a)lemko.xyz)<2674357><uATxGqbaSGW1zigAn4O9eQ>: Error: lmtp-server: conn unix:pid=2600068,uid=89 [2]: rcpt minemail(a)my.private: Mailbox INBOX: Corrupted transaction log file /VMAIL/my.private/minemail/dovecot.index.log seq 4: ext intro: name_size too large (sync_offset=6368) ... Above happened if the same one user was having mail delivered on two Postfix+Dovecot servers at the same time. I hope experts who know Dovecot's internals better can tell... having such multiple node/server Dovecots "talking" to that same network mount-point but!.. only one Dovecot being active - having Postfix using it and other, however many, Dovecots only "idling" - not having Postifx using it (+ no client connections is a goal too) Would that make such multi-Dovecot setup safe & free from errors as above & any storage related ones? Or perhaps there are other ways to have many Dovecots with the same user-base, using same networked storage simultaneously? many thanks, L. Hi guys. I see that with mailboxes stored on a network mount-point and more than one box with Dovecot using such a mailbox, Dovecots step on each others toes. ... lmtp(minemail(a)lemko.xyz)<2674357><uATxGqbaSGW1zigAn4O9eQ>: Error: lmtp-server: conn unix:pid=2600068,uid=89 [2]: rcpt minemail(a)my.private: Mailbox INBOX: Corrupted transaction log file /VMAIL/my.private/minemail/dovecot.index.log seq 4: ext intro: name_size too large (sync_offset=6368) ... Above happened if the same one user was having mail delivered on two Postfix+Dovecot servers at the same time. I hope experts who know Dovecot's internals better can tell... having such multiple node/server Dovecots "talking" to that same network mount- point but!.. only one Dovecot being active - having Postfix using it and other, however many, Dovecots only "idling" - not having Postifx using it (+ no client connections is a goal too) Would that make such multi-Dovecot setup safe & free from errors as above & any storage related ones? Or perhaps there are other ways to have many Dovecots with the same user-base, using same networked storage simultaneously? many thanks, L.

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Can Dovecot Use Wildcard TLS Certificates?
by duluxoz 07 Nov '23

07 Nov '23

Hi All, Quick Q: Can dovecot use wildcard TLS Certificates? I'm having issues with a new dovecot/postfix stack set-up and I can't get mutt on the local box to connect via imap - its coming back with an SSL error, and as I'm using a wildcard cert for the domain I was wondering if that was my issue. If dovecot can use wildcard certs then I'll look elsewhere in my troubleshooting. Thanks in advance Cheers Dulux-Oz

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Minimum configuration for Dovecot SASL only?
by Nick Lockheart 06 Nov '23

06 Nov '23

I have a Dovecot IMAP server and a Postfix server on separate machines. The user information is stored in a MariaDB database that is replicated on both servers. Postfix needs to authenticate outgoing mail against our valid user database. I believe this requires us to install a "dummy" Dovecot on the Postfix server so that Dovecot SASL can provide authentication to Postfix from the database. I think Cyrus had a standalone Cyrus-SASL package, but Dovecot doesn't? If I wanted to setup a Dovecot instance on the Postfix server just for the purposes of SMTP authentication, and not use it to handle any mail, what is the minimum configuration required to make that work? Is the dovecot-common package (Debian) enough? Or do I need the full dovecot-imap package? What protocols go in the protocols directive? Can you just make it "protocols = auth" to disable IMAP connections?

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with GlusterFS - permissions for vmail ?
by lejeczek 05 Nov '23

05 Nov '23

Hi guys. I must be missing, having something misconfigured. I have: -> $ gluster volume info VMAIL Volume Name: VMAIL Type: Distributed-Replicate Volume ID: 462a1850-a31a-4a17-934d-26f3996dc9b8 Status: Started Snapshot Count: 0 Number of Bricks: 1 x 2 = 2 Transport-type: tcp Bricks: Brick1: 10.1.1.100:/devs/00.GLUSTERs/VMAIL Brick2: 10.1.1.101:/devs/00.GLUSTERs/VMAIL Options Reconfigured: storage.owner-gid: 2000 storage.owner-uid: 2000 cluster.granular-entry-heal: on storage.fips-mode-rchecksum: on transport.address-family: inet nfs.disable: on performance.client-io-threads: off and my _dovecot_ errors out with: ... imap(ja_discourse(a)test.web)<92447><w3ygwWUJUNddviSg>: Error: mkdir(/VMAIL/test.web/ja_discourse) failed: Permission denied (euid=2000(vmail) egid=2000(vmail) missing +w perm: /VMAIL, UNIX perms appear ok (ACL/MAC wrong?)) imap(ja_discourse(a)test.web)<92447><w3ygwWUJUNddviSg>: Error: mkdir(/VMAIL/test.web/ja_discourse) failed: Permission denied (euid=2000(vmail) egid=2000(vmail) missing +w perm: /VMAIL, UNIX perms appear ok (ACL/MAC wrong?)) imap(ja_discourse(a)test.web)<92447><w3ygwWUJUNddviSg>: Error: Mailbox INBOX: Failed to autocreate mailbox: Internal error occurred. Refer to server log for more information. [2023-11-05 12:08:25] ... What might I have incorrect or wrong? many thanks, L Hi guys. I must be missing, having something misconfigured. I have: -> $ gluster volume info VMAIL Volume Name: VMAIL Type: Distributed-Replicate Volume ID: 462a1850-a31a-4a17-934d-26f3996dc9b8 Status: Started Snapshot Count: 0 Number of Bricks: 1 x 2 = 2 Transport-type: tcp Bricks: Brick1: 10.1.1.100:/devs/00.GLUSTERs/VMAIL Brick2: 10.1.1.101:/devs/00.GLUSTERs/VMAIL Options Reconfigured: storage.owner-gid: 2000 storage.owner-uid: 2000 cluster.granular-entry-heal: on storage.fips-mode-rchecksum: on transport.address-family: inet nfs.disable: on performance.client-io-threads: off and my _dovecot_ errors out with: ... imap(ja_discourse(a)test.web)<92447><w3ygwWUJUNddviSg>: Error: mkdir(/VMAIL/ test.web/ja_discourse) failed: Permission denied (euid=2000(vmail) egid=2000 (vmail) missing +w perm: /VMAIL, UNIX perms appear ok (ACL/MAC wrong?)) imap(ja_discourse(a)test.web)<92447><w3ygwWUJUNddviSg>: Error: mkdir(/VMAIL/ test.web/ja_discourse) failed: Permission denied (euid=2000(vmail) egid=2000 (vmail) missing +w perm: /VMAIL, UNIX perms appear ok (ACL/MAC wrong?)) imap(ja_discourse(a)test.web)<92447><w3ygwWUJUNddviSg>: Error: Mailbox INBOX: Failed to autocreate mailbox: Internal error occurred. Refer to server log for more information. [2023-11-05 12:08:25] ... What might I have incorrect or wrong? many thanks, L

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install/compile dovecot-pigeonhole
by joe a 03 Nov '23

03 Nov '23

Working dovecot 2.3, wish to be able to implement "server side" filtering. My understanding is that is done with "sieve". My further understanding is that "dovecot-pigeonhole" and be used to manage "sieve" in some fashion. Attempting to compile dovecot-2.3-pigeonhole-0.5.21 proves problematic due to its inability to find dovecot-config. Which is not astonishing as, on my system dovecot-config does not exist, dovecot having been installed as a vendor configure package. Sadly, no vendor package or binary is provided for dovecot-pigeonhole. At least that I am aware of. OS is opensuse LEAP 15.5. Any helpful commentary is welcome. Honest.

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Too many auth errors
by DeJa Wu 03 Nov '23

03 Nov '23

I've got too many errors on my mail server like this: Nov 3 12:03:13 mail01 dovecot[5562]: imap-login: Error: auth-client: conn unix:login (pid=5553,uid=0): Authentication server sent unknown id 2965 Nov 3 12:03:13 mail01 dovecot[5562]: imap-login: Error: auth-client: conn unix:login (pid=5553,uid=0): Authentication server sent unknown id 2966 Nov 3 12:03:13 mail01 dovecot[5562]: imap-login: Error: auth-client: conn unix:login (pid=5553,uid=0): Authentication server sent unknown id 2967 Nov 3 12:03:13 mail01 dovecot[5562]: imap-login: Error: auth-client: conn unix:login (pid=5553,uid=0): Authentication server sent unknown id 2084 Nov 3 12:03:13 mail01 dovecot[5562]: imap-login: Error: auth-client: conn unix:login (pid=5553,uid=0): Authentication server sent unknown id 1972 And my users say that login to the mail server is too long. In some cases I've got an error connection problem. How do I fix this? BR, DeJa I've got too many errors on my mail server like this: Nov 3 12:03:13 mail01 dovecot[5562]: imap-login: Error: auth-client: conn unix:login (pid=5553,uid=0): Authentication server sent unknown id 2965 Nov 3 12:03:13 mail01 dovecot[5562]: imap-login: Error: auth-client: conn unix:login (pid=5553,uid=0): Authentication server sent unknown id 2966 Nov 3 12:03:13 mail01 dovecot[5562]: imap-login: Error: auth-client: conn unix:login (pid=5553,uid=0): Authentication server sent unknown id 2967 Nov 3 12:03:13 mail01 dovecot[5562]: imap-login: Error: auth-client: conn unix:login (pid=5553,uid=0): Authentication server sent unknown id 2084 Nov 3 12:03:13 mail01 dovecot[5562]: imap-login: Error: auth-client: conn unix:login (pid=5553,uid=0): Authentication server sent unknown id 1972 And my users say that login to the mail server is too long. In some cases I've got an error connection problem. How do I fix this? BR, DeJa

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