February 2025 - dovecot

Doveadm Backup
by Doug Hardie 18 Feb '25

18 Feb '25

I am using doveadm backup to backup the mail server's files for a specific user. This is a test environment for the backup machine. All it does is sit there until I run backup on the mail server. However, I am encountering an issue occasionally where backup throws the following message: Warning: Deleting mailbox 'Deleted Messages': UID=533920 already exists locally for a different mail: GUIDs don't match (1739791386.M526904P56414.checkout,S=2206,W=2264 vs 1739674845.M569094P6598.mail,S=6530202,W=6615064) At this point it stops and the indicated mailbox has been deleted. It is not always the same mailbox. I then have to run the backup again and wait for it to download the entire directory which takes a long time. I was hoping to use this approach for a frequently run backup, but it appears it is not feasible. Some mailboxes are large enough that a second backup would be initiated before the complete reload had completed. Can this be corrected? -- Doug

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Question about push notification plugin
by Zakaria 17 Feb '25

17 Feb '25

Hi Dovecot Mailing List members, I just struggled to understand the plugin events and wondered if anyone can help on this. I wanted to capture the event when I mark message as not spam move event as well as when I move message to new folder event, I found MessageNew and MessageAppend, and couldnt figure out which one is responsible of the relevant event? Also, feedback to the dovecot dev team, it would great if we have push notification redis driver. Thanks in advance. Zakaria.

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Re: Doveadm Backup Error
by Asai 17 Feb '25

17 Feb '25

Thank you, Timo, that fixed the problem. Asai On 2/17/2025 9:03 AM, Timo Sirainen wrote: > On 17. Feb 2025, at 16.26, Asai via dovecot <dovecot(a)dovecot.org> wrote: >> >> sieve_script personal { >> active_path = /vmail/%{user | domain }/%{user | username >> }/home/.dovecot.sieve >> driver = file >> path = /vmail/%{user | domain }/%{user | username }/home/sieve >> } > > Looks like %variables aren't really working right with Sieve / doveadm > combination. It gives an error: > > Error: sieve: sieve_file_storage settings: Failed to parse > configuration: Failed to expand sieve_script_path setting variables: > Unknown variable 'user' > > So for now the only way is to avoid %variables there - that simplifies > the config anyway: > > sieve_script personal { > active_path = ~/.dovecot.sieve > path = ~/sieve > } > Thank you, Timo, that fixed the problem. Asai On 2/17/2025 9:03 AM, Timo Sirainen wrote: On 17. Feb 2025, at 16.26, Asai via dovecot <dovecot(a)dovecot.org> wrote: sieve_script personal { active_path = /vmail/%{user | domain }/%{user | username }/ home/.dovecot.sieve driver = file path = /vmail/%{user | domain }/%{user | username }/home/sieve } Looks like %variables aren't really working right with Sieve / doveadm combination. It gives an error: Error: sieve: sieve_file_storage settings: Failed to parse configuration: Failed to expand sieve_script_path setting variables: Unknown variable 'user' So for now the only way is to avoid %variables there - that simplifies the config anyway: sieve_script personal { active_path = ~/.dovecot.sieve path = ~/sieve }

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Re: Doveadm Backup Error
by Asai 17 Feb '25

17 Feb '25

Thanks Timo, OK, I'll give that a try, I should point out that the Sieve filters are working as they should be for general delivery, outside of doveadm backup. Asai On 2/17/2025 9:03 AM, Timo Sirainen wrote: > On 17. Feb 2025, at 16.26, Asai via dovecot <dovecot(a)dovecot.org> wrote: >> >> sieve_script personal { >> active_path = /vmail/%{user | domain }/%{user | username >> }/home/.dovecot.sieve >> driver = file >> path = /vmail/%{user | domain }/%{user | username }/home/sieve >> } > > Looks like %variables aren't really working right with Sieve / doveadm > combination. It gives an error: > > Error: sieve: sieve_file_storage settings: Failed to parse > configuration: Failed to expand sieve_script_path setting variables: > Unknown variable 'user' > > So for now the only way is to avoid %variables there - that simplifies > the config anyway: > > sieve_script personal { > active_path = ~/.dovecot.sieve > path = ~/sieve > } > Thanks Timo, OK, I'll give that a try, I should point out that the Sieve filters are working as they should be for general delivery, outside of doveadm backup. Asai On 2/17/2025 9:03 AM, Timo Sirainen wrote: On 17. Feb 2025, at 16.26, Asai via dovecot <dovecot(a)dovecot.org> wrote: sieve_script personal { active_path = /vmail/%{user | domain }/%{user | username }/ home/.dovecot.sieve driver = file path = /vmail/%{user | domain }/%{user | username }/home/sieve } Looks like %variables aren't really working right with Sieve / doveadm combination. It gives an error: Error: sieve: sieve_file_storage settings: Failed to parse configuration: Failed to expand sieve_script_path setting variables: Unknown variable 'user' So for now the only way is to avoid %variables there - that simplifies the config anyway: sieve_script personal { active_path = ~/.dovecot.sieve path = ~/sieve }

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FTS Xapian 1.9.1 released - Compatibility with git and 2.4
by Joan Moreau 17 Feb '25

17 Feb '25

Hi Finally released 1.9.1 to catch-up with 2.4.x and git recent changes Same "simplistic" approach - You get what you search for, no approximation/elastic/stemming, any language - No config required by default - Drastically reduced storage required / Drastically improved indexing/searching speed - Works on small servers or big servers https://github.com/grosjo/fts-xapian/ Thank you Aki Tuomi to help me pass this over the line Enjoy JM Hi Finally released 1.9.1 to catch-up with 2.4.x and git recent changes Same "simplistic" approach - You get what you search for, no approximation/elastic/stemming, any language - No config required by default - Drastically reduced storage required / Drastically improved indexing/ searching speed - Works on small servers or big servers https://github.com/grosjo/fts-xapian/ Thank you Aki Tuomi to help me pass this over the line Enjoy JM

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Doveadm Backup Error
by Asai 17 Feb '25

17 Feb '25

Greetings, On 2.3 I was able to run the following command, but now on 2.4 I'm getting the following error: doveadm backup -u user(a)domain.tld maildir:/mnt/backups/daily/domain.tld/user dsync(user(a)domain.tld): Error: brain M: Exporting mailbox INBOX failed: Mailbox attribute iteration failed: Mailbox attributes not enabled So, I tried to set the configs to include: protocol imap { imap_metadata = yes ... } mail_attribute { dict file { path = %{home}/dovecot-attributes } } But then I get: Error: brain M: Exporting mailbox INBOX failed: Mailbox attribute iteration failed: BUG: Unknown internal error Can anyone clarify the proper configs for this? Thank you, Asai

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Dovecot 2.4 - Example config
by Joan Moreau 17 Feb '25

17 Feb '25

Hi For those struggling with the new config, here an example I am using (Xapian, Sieve, mdbox, LMTP, ...) --- dovecot_config_version = 2.4.0 dovecot_storage_version = 2.4.0 base_dir = /run/dovecot state_dir = /var/lib/dovecot default_login_user = dovecot listen = * :: verbose_proctitle = yes mail_gid = mail mail_uid = mailusers mail_driver = mdbox mail_path = /data/mails/%{user | domain }/%{user | username } mail_home = /data/mails/%{user | domain }/%{user | username } mail_plugins = fts fts_xapian # mail_debug = yes # mail_cache_max_size = 128M ssl_server_cert_file = /etc/letsencrypt/live/gjnet/fullchain.pem ssl_server_key_file = /etc/letsencrypt/live/gjnet/privkey.pem ssl_server_dh_file = /etc/mail/dovecot/dh.pem mdbox_rotate_size = 64M default_vsz_limit = unlimited sendmail_path = /usr/sbin/sendmail sql_driver = mysql mysql localhost { user = services password = MYPASSWORD dbname = services } fts xapian { } fts_autoindex = yes fts_decoder_driver = script fts_decoder_script_socket_path = decode2text sieve_script default { type = default driver = file path = /data/mails/sieve/default.sieve } sieve_script before { type = before driver = file path = /data/mails/sieve/after.sieve } sieve_script after { type = after driver = file path = /data/mails/sieve/after.sieve } sieve_script personal { type = personal driver = file path = /data/mails/%{user | domain }/%{user | username }/sieve/ active_path = /data/mails/%{user | domain }/%{user | username }/sieve/default.sieve } sieve_script global { type = global driver = file path = /data/mails/sieve/ } namespace inbox { inbox = yes mailbox Trash { auto = subscribe special_use = \Trash fts_autoindex = no } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } } userdb sql { query = SELECT 1 from users where user like '%{user | username}' and domain like '%{user | domain}' and active=1 iterate_query = SELECT user AS username, domain FROM users where active=1 } passdb sql { query = SELECT concat(user, '@', domain) AS user, password from users where user like '%{user | username}' and domain like '%{user | domain}' and active=1 } service auth { unix_listener auth-userdb { mode = 0600 user = mailusers } } protocols = imap pop3 sieve lmtp service imap-login { chroot = login process_min_avail = 8 restart_request_count = unlimited } service indexer-worker { vsz_limit = 4G } protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep imap_max_line_length = 655360 mail_max_userip_connections = 256 } service pop3-login { chroot = login } protocol pop3 { mail_max_userip_connections = 256 pop3_enable_last = yes pop3_lock_session = no pop3_reuse_xuidl = yes } service lmtp { inet_listener lmtp { address = 127.0.0.1 ::1 port = 24 } unix_listener lmtp { mode = 0666 } process_min_avail = 8 } service managesieve-login { chroot = login inet_listener sieve { port = 4190 } inet_listener sieveold { port = 2000 } } protocol sieve { managesieve_implementation_string = dovecot mail_max_userip_connections = 256 managesieve_max_line_length = 65536 } protocol lmtp { mail_plugins { fts = yes fts_xapian = yes sieve = yes } } protocol lda { auth_socket_path = /run/dovecot/auth-userdb hostname = mx.grosjo.net mail_plugins = $mail_plugins sieve postmaster_address = admin(a)grosjo.net lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_plugins { fts = yes fts_xapian = yes sieve = yes } } service stats { unix_listener stats-writer { mode = 0660 user = mailusers } } service decode2text { executable = script /usr/libexec/dovecot/decode2text.sh user = dovecot unix_listener decode2text { mode = 0666 } }

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Registering module in 2.4
by Joan Moreau 16 Feb '25

16 Feb '25

Hi I am trying to adjust the Xapian plugin to the very recent massive changes. https://github.com/grosjo/fts-xapian I implemented the changes about the settings However, I get to : Feb 16 13:39:44 gjserver dovecot[2211311]: imap(xxx)<2211361><W21YikIuomA2rj7G>: Error: fts: Failed to initialize backend 'xapian': Unknown backend Has the module registration changed as well ? Thank you so much

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Userdb lookup problems
by Ken Wright 16 Feb '25

16 Feb '25

I finally got my new Dovecot 2.4 installation going to the point I can log in from Evolution, but for some reason it won't accept my password. Here are the pertinent sections from the dovecot.conf, 10-mail.conf, and dovecot-sql.conf.ext files: dovecot.conf: userdb sql { query = SELECT home, uid, gid FROM mailbox WHERE username = '%{user | username}' AND domain = '%{user | domain}' AND active= '1' 10-mail.conf: mail_driver = maildir #mail_home = %{home} mail_home = /var/vmail/%{user | domain }/%{user | username } mail_path = ~/mail mail_inbox_path = /var/vmail/%{user | domain}/%{user | username } mailbox_list_utf8 = yes namespace inbox { separator = / inbox = yes } dovecot-sql.conf.ext: driver = mysql connect = host=localhost dbname=postfixadmin user=postfixadmin password=hidden userdb_default_password_scheme = ARGON2I password_query = SELECT username AS username, password FROM mailbox WHERE username = '%{user | username }' AND active= '1' user_query = SELECT maildir, 2000 AS uid, 2000 AS gid FROM mailbox WHERE username = '%{user | username }' AND active= '1' iterate_query = SELECT username AS username FROM mailbox I hope someone can explain my horrible mistake! Ken

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v2.4 and fts-flatcurve configuration
by Felix Zielcke 16 Feb '25

16 Feb '25

Hi, I updated today to 2.4.0 and still have problems configuring fts- flatcurve. This is in my config: mail_plugins { fts = yes fts_flatcurve = yes } fts flatcurve { language de { default = yes } language en { } autoindex = yes } But it then fails to start with: doveconf: Error: Failed to get language de: Filter language=de unexpectedly not found (invalid userdb or -o override settings?) doveconf: Fatal: Error in configuration file /etc/dovecot/dovecot.conf: Failed to get language de: Filter language=de unexpectedly not found (invalid userdb or -o override settings?) If I comment out the language settings, then it starts. But a "doveadm fts rescan -A" fails with: doveadm(***): Error: fts: Failed to initialize backend 'flatcurve': languages settings: Invalid settings: No language { .. } defined doveadm(***): Error: fts not enabled for user's namespace INBOX How do I fix these 2 errors?

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