February 2024 - dovecot

Help running dovecot with sieve
by pereirar2z＠gmail.com 23 Feb '24

23 Feb '24

Hi all, I'm running dovecot-pigeonhole-2.3.21-1.x86_64 & dovecot-2.3.21-1.x86_64 + roundcube 1.6.6 on my redhat server. Mailserver is working as expected with the exception fo the Filters. I've installed and configure everything that i'm aware of but unfortunatelly its not working. I think my installation is not loading this module: /usr/lib/dovecot/modules/lib90_sieve_plugin.so. But i have no idea what can I do more. Can you please help me? ###### # 2.3.21 (47349e2482): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.21 (f6cd4b8e) # OS: Linux 4.18.0-513.11.1.el8_9.x86_64 x86_64 Red Hat Enterprise Linux release 8.9 (Ootpa) xfs # Hostname: xxxxxx.xxxxx auth_debug = yes auth_verbose = yes disable_plaintext_auth = no first_valid_uid = 1000 listen = * log_path = /var/log/dovecot.log mail_debug = yes mail_location = maildir:/home/vmail/%d/%n/Maildir mail_plugins = acl mail_log notify mail_privileged_group = mail 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 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-sql.conf.ext driver = sql } plugin { sieve = ~/.dovecot.sieve sieve_default = /var/lib/dovecot/sieve/default.sieve sieve_dir = ~/sieve sieve_global = /var/lib/dovecot/sieve/global/ } protocols = imap pop3 sieve lmtp service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = dovecot } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 4 service_count = 1 vsz_limit = 64 M } service stats { unix_listener stats-reader { group = wheel mode = 0666 user = dovecot } unix_listener stats-writer { group = wheel mode = 0666 user = dovecot } } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = # hidden, use -P to show it userdb { args = uid=vmail gid=vmail home=/home/vmail/%d/%n/Maildir driver = static } verbose_ssl = yes protocol lmtp { mail_plugins = acl mail_log notify quota sieve } protocol sieve { info_log_path = /var/log/dovecot-sieve.log log_debug = category=sieve managesieve_implementation_string = Dovecot Pigeonhole managesieve_logout_format = bytes=%i/%o managesieve_max_compile_errors = 5 managesieve_max_line_length = 64 k } (END ##### Can you guys see anything wrong here? Any help is highly appreciated! Thank-you

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User-configurable time-based mail deletion in specific folders
by Peter Reinhold 22 Feb '24

22 Feb '24

Hi I have been wondering about if Dovecot has a feature that would allow users to setup a rule for a given folder, that mails older than X days should be deleted? Or is this something that would need to be done by an external script? I have looked a bit at autoexpunge, and while the basic feature looks to be what I need, it doesn't seem to be configurable down to a specific folder on a single user. -- Peter Reinhold Hi I have been wondering about if Dovecot has a feature that would allow users to setup a rule for a given folder, that mails older than X days should be deleted? Or is this something that would need to be done by an external script? I have looked a bit at autoexpunge, and while the basic feature looks to be what I need, it doesn't seem to be configurable down to a specific folder on a single user. -- Peter Reinhold

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Valid Docs for Dovecot with postgresql
by burkhardt＠konsultaner.de 19 Feb '24

19 Feb '24

Hi! The docs for dovecot with postgres are outdated and I somehow cannot connect from my dovecot instance to my postgresql database. I tried a lot but the debug output dosn't help me. What user is actually trying to connect to the postgresql? the dovecot user or root or the actual user from the connection config? I want to connect locally. Do I use password or md5 or peer with a map to connect? (tried all) simple console with pgsql command works fine. I found a couple of "How tos" but nothing helped. Are there any potential version conflict? I'm on 2.3.16 with postgresql 16. Thanks! Richi Hi! The docs for dovecot with postgres are outdated and I somehow cannot connect from my dovecot instance to my postgresql database. I tried a lot but the debug output dosn't help me. What user is actually trying to connect to the postgresql? the dovecot user or root or the actual user from the connection config? I want to connect locally. Do I use password or md5 or peer with a map to connect? (tried all) simple console with pgsql command works fine. I found a couple of "How tos" but nothing helped. Are there any potential version conflict? I'm on 2.3.16 with postgresql 16. Thanks! Richi

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[Dovecot] doveadm delete folders ?
by Robert Schetterer 19 Feb '24

19 Feb '24

Hi , is there a feature like doveadm expunge savedbefore ... for imap folder delete ? -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

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"Invalid uid in reply"
by J. B. Crawford 18 Feb '24

18 Feb '24

Hello, I am in the process of moving a previously working dovecot setup to a new authentication system. The identity management system, kanidm, uses a Pam module and NSS backend to provide user info. Authentication works normally on the machine, but Dovecot is having a lot of trouble, logging: Error: Invalid uid in reply Error: Invalid gid in reply I ran doveadm -D user jesse(a)waffle.tech as a test, and I see: Feb 17 21:58:33 doveadm(jesse(a)waffle.tech)<17666><>: Debug: auth-master: userdb lookup(jesse(a)waffle.tech): Started userdb lookup Feb 17 21:58:33 doveadm(jesse(a)waffle.tech)<17666><>: Debug: auth-master: conn unix:/run/dovecot/auth-userdb: Connecting Feb 17 21:58:33 doveadm(jesse(a)waffle.tech)<17666><>: Debug: auth-master: conn unix:/run/dovecot/auth-userdb (pid=17635,uid=0): Client connected (fd=9) Feb 17 21:58:33 doveadm(jesse(a)waffle.tech)<17666><>: Debug: auth-master: userdb lookup(jesse(a)waffle.tech): auth USER input: jesse system_groups_user=jesse uid=4123057063 gid=4123057063 home=/var/mail/jesse mail=maildir:/var/mail/jesse/Maildir Feb 17 21:58:33 doveadm(jesse(a)waffle.tech)<17666><>: Debug: auth-master: userdb lookup(jesse(a)waffle.tech): Finished userdb lookup (username=jesse system_groups_user=jesse uid=4123057063 gid=4123057063 home=/var/mail/jesse mail=maildir:/var/mail/jesse/Maildir) Feb 17 21:58:33 doveadm(jesse(a)waffle.tech)<17666><>: Error: Invalid uid in reply Feb 17 21:58:33 doveadm(jesse(a)waffle.tech)<17666><>: Error: Invalid gid in reply We can see the UID and GID in the debug output, but it comes out blank in the final info. I'm having a hard time finding what the cause could be, is it possible that these UID/GID values are too large? that's about the only thing I can think of right now. This is Dovecot 2.3.21 (47349e2482) on Fedora 39. Thanks, jc -- J. B. Crawford jesse(a)jbcrawford.us (575) 303-9001

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long mail_location value formatting
by k v 17 Feb '24

17 Feb '24

Hello! The mail_location value with all the necessary keys can be quite long, for example: mail_location = mdbox:~/mdbox:VOLATILEDIR=/dev/shm/dovecot/volatile/%d/%n:LISTINDEX=/dev/shm/dovecot/listindex/%d/%n/dovecot.list.index:ALT=/var/dovecot-alt/%d/%n/mdbox When trying to split a value into multiple lines like: mail_location = \ mdbox:~/mdbox: \ VOLATILEDIR=/dev/shm/dovecot/volatile/%d/%n: \ LISTINDEX=/dev/shm/dovecot/listindex/%d/%n/dovecot.list.index: \ ALT=/var/dovecot-alt/%d/%n/mdbox according to the documentation https://doc.dovecot.org/configuration_manual/config_file/index.html#long-li…, each new line adds a whitespace, which breaks the value: doveadm config mail_location mail_location = mdbox:~/mdbox: VOLATILEDIR=/dev/shm/dovecot/volatile/%d/%n: LISTINDEX=/dev/shm/dovecot/listindex/%d/%n/dovecot.list.index: ALT=/var/dovecot-alt/%d/%n/mdbox doveadm mailbox list -u mail(a)example.com doveadm(mail(a)example.com): Error: Namespace '': Unknown setting: VOLATILEDIR Is it possible to split the value into multiple lines for better readability? Maybe add functionality to trim extra spaces when reading the mail_location value?

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Doveadm on virtual users. Auth works but user don't
by jenawork＠iol.it 17 Feb '24

17 Feb '24

Hello All. I stumbled in a strange problem. I have some users stored in LDAP directory. They have uid in name.surname form and multiple mail attributes in the form of arbitraty(a)domain-n.it The Auth process works with virtual users on passdb (I can log with arbitraty(a)domain-1.it and arbitraty(a)domain-2.it) The usedb lookup works perfectly, and dovecot correctly creates the mailboxes in the form /home/domain/name.surname/arbitraty(a)domain-1.it/Maildir and /home/domain/name.surname/arbitraty(a)domain-2.it/Maildir The doveadm auth login arbitraty(a)domain-1.it command perfectly works, allowing the login to name.surname and the userdb lookup with the correct parameters. The doveadm user and the doveadm backup commands return "arbitraty(a)domain-1.it" not found I need it to migrate from an old cyrus imap to the new server Do someone have any idea? Thank you very much. (dovecot 2.3.19.1) Example: case 1: doveadm auth login "carlo.mor(a)sybill.it" Password: passdb: carlo.mor(a)sybill.it auth succeeded extra fields: user=carlo.mor original_user=carlo.mor(a)sybill.it userdb extra fields: carlo.mor uid=1001 gid=3001 home=/home/domain/carlo.mor/carlo.mor(a)sybill.it auth_mech=PLAIN auth_user=carlo.mor(a)sybill.it doveadm user "carlo.mor(a)sybill.it" userdb lookup: user carlo.mor(a)sybill.it doesn't exist field value

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shared storage with local indexes?
by Andy Balholm 14 Feb '24

14 Feb '24

I'm trying to figure out how to have multiple Dovecot servers for high availability after replication goes away. The obvious solution would be some kind of shared storage, but the docs have all kinds of warnings about possible data corruption. It seems like Maildir is the safest mailbox format for shared storage, but even with Maildir there are warnings about the possibility of corrupting the index files. Would it make sense to use shared storage for the maildirs themselves, but use the INDEX option in mail_location to store index files locally, and have separate index files for each Dovecot server? That would take care of the potential for index corruption, but what other strange problems would it cause? Andy

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Additional Kerberos (Samba) / GSSAPI auth for intranet users
by r.barclay＠habmalnefrage.de 14 Feb '24

14 Feb '24

Hi, I have a Dovecot (IMAP only) and Postfix (SMTP) based mail server. User names, mailbox settings and password hashes are loaded from a PostgreSQL database. The users use Thunderbird on the desktop and K9mail or Apple Mail on mobile phones. This works fine since a few years. Now I'd like to introduce Single Sign On with Thunderbird to ease up the deployment of clients systems. (No more manual mail password entry.) Users log in on a Samba AD domain, e.g.: johndoe(a)ad.example.internal. The mail addresses (and equally auth user names for Dovecot) are in the format: johndoe(a)example.org Up to now users have different passwords for AD and mail. These systems are not integrated. I have two related questions concerning that: First question: How can I map between these on the Dovecot side? There are no mailboxes or auth users like "johndoe(a)ad.example.internal". Instead, the public domain (e.g. example.org) is used for the mail system. Up to now the mail server doesn't know anything about the Samba domain and has nothing to do with that. Second question: Can I allow GSSAPI auth for intranet users only (e.g. 192.168.42.0/24)? My Internet router forwards the IMAP and SMTP ports to the mail server to allow the mobiles phones to connect to it. But it doesn't make sense to offer GSSAPI auth for Internet users from all over the world. Isn't that somewhat risky? All the M$ish AD stuff feels somewhat Mystery Meat like for me... Thank you very much for all input and help you can provide! Yours, Reg

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Inconsistency in map index with dovecot v2.3.21
by John Alex. 14 Feb '24

14 Feb '24

Hi, since I upgraded dovecot to version 2.3.21 on a FreeBSD 13.2 system, I've been seeing a few occurences of the following warnings daily: Jan 11 13:13:25 dimokritos dovecot[33170]: lmtp(user1)<8209><SId/BlXNn2URIAAA+iYuTQ:T2>: Warning: mdbox /var/vmail/users/user1/mdbox/storage: Inconsistency in map index (5,40 != 5,56) Jan 11 13:13:25 dimokritos dovecot[33170]: lmtp(user1)<8209><SId/BlXNn2URIAAA+iYuTQ:T2>: Warning: fscking index file /var/vmail/users/user1/mdbox/storage/dovecot.map.index Jan 11 13:13:25 dimokritos dovecot[33170]: lmtp(user1)<8209><SId/BlXNn2URIAAA+iYuTQ:T2>: Warning: mdbox /var/vmail/users/user1/mdbox/storage: rebuilding indexes Jan 11 13:13:26 dimokritos dovecot[33170]: lmtp(user1)<8209><SId/BlXNn2URIAAA+iYuTQ:T2>: Warning: fscking index file /var/vmail/users/user1/mdbox/storage/dovecot.map.index The numbers in parentheses seem to always be of the format (x,40 != x,56) or (x,40 != x,72). I also get such errors on some users when purging (doveadm-purge fails with error 75): doveadm(user2): Warning: mdbox /var/vmail/users/user2/mdbox/storage: Inconsistency in map index (5,40 != 5,72) doveadm(user2): Warning: fscking index file /var/vmail/users/user2/mdbox/storage/dovecot.map.index doveadm(user2): Warning: mdbox /var/vmail/users/user2/mdbox/storage: rebuilding indexes doveadm(user2): Error: Purging namespace '' failed: BUG: Unknown internal error If I rerun doveadm purge for this user it completes successfully. Can anyone shed some light on what might be causing these messages? I didn't have these with 2.3.20. Should I be worried about data loss due to these index inconsistencies?

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