January 2017 - dovecot

dovecot.index.pvt view is inconsistent: error messages for public mailbox folder
by Andreas Ntaflos 03 Jan '17

03 Jan '17

Hi list, running Dovecot 2.2.27 on Ubuntu 14.04. A public mailbox "Public/Spam-Learning" in a public namespace with per-user "Seen" flags is configured like this: namespace pub { hidden = no inbox = no list = children location = maildir:/var/vmail/public:INDEXPVT=~/Maildir/public prefix = Public/ separator = / subscriptions = no type = public mailbox "Spam-Learning" { auto = subscribe } } The log files are full of error messages like these (got about 15000 in the last three days): 2017-01-03T11:19:28.242386+01:00 mailserver01 dovecot: imap(foo.bar(a)example.org): Error: /var/vmail/example.org/foo.bar/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent 2017-01-03T11:19:28.248524+01:00 mailserver01 dovecot: imap(foo.bar(a)example.org): Error: /var/vmail/example.org/foo.bar/Maildir/public/.Spam-Learning/dovecot.index.pvt view is inconsistent 2017-01-03T11:23:50.209732+01:00 mailserver01 dovecot: imap(baz.quux(a)example.org): Error: /var/vmail/example.org/baz.quux/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent 2017-01-03T11:23:50.775940+01:00 mailserver01 dovecot: imap(some.user(a)example.org): Error: /var/vmail/example.org/some.user/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent 2017-01-03T11:25:38.419536+01:00 mailserver01 dovecot: imap(other.user(a)example.org): Error: /var/vmail/example.org/other.user/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent 2017-01-03T11:34:14.351346+01:00 mailserver01 dovecot: imap(more.user(a)example.org): Error: /var/vmail/example.org/more.user/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent 2017-01-03T11:41:37.488916+01:00 mailserver01 dovecot: imap(support.user(a)example.org): Error: /var/vmail/example.org/support.user/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent This problem did not seem to manifest itself in Dovecot 2.2.25, we see it only after upgrading to 2.2.27. I am not sure what the effects are. It seems that messages moved to the Public/Spam-Learning folder are deleted after a short while (not by the sa-learn cron job, which runs every morning) but I currently cannot say if this is because a user deletes them explicitly or because Dovecot does something it shouldn't. So this observation is possibly not relevant. It also doesn't seem to matter what kind of IMAP client access the Spam-Learning folder. Our users use Thunderbird, Apple Mail, Outlook, Roundcube, Horde and various mobile clients as well. I have attached the output of doveconf -n for reference. What could be the issue here? Are we doing something wrong or is this a bug in Dovecot? Thanks! Andreas

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expunging all mailboxes
by Michael Fox 03 Jan '17

03 Jan '17

Evidently, the 'doveadm expunge' command requires a "mailbox" to be defined in the search string. But is there a way tell it all mailboxes for a user? For example, something like: doveadm expunge -u user@domain mailbox ALL savedbefore 30d Thanks, Michael

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two listeners with different "driver = " configs
by mj 03 Jan '17

03 Jan '17

Hi, I would like to have two seperate imap listeners, with different authentication settings, but the mailstore and userbase etc will be identical. I know I can do this: > service imap-login { > inet_listener imap { > port = 143 > } > inet_listener imap2 { > port = 144 > } > } But I'm unsure how to configure imap/143 with "driver = ldap" and imap2/144 with "driver = pam" Just to explain why i would like this: I am using pam-script-saml (https://github.com/ck-ws/pam-script-saml) to enable saml-based access to dovecot. I would like to have one listener 144 to only serve this saml authentication listener, and the regular 143 listener with driver = ldap. Is that config possible? Best regards, MJ

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differential SETACL silently fails if no vfile exists
by Vincent Breitmoser 02 Jan '17

02 Jan '17

In version 2.2.13, with `acl = vfile`, setting a differential ACL permission doesn't work if there are no permissions set yet. Example IMAP log: b1 GETACL test * ACL test valodim lrwstipekxacd b1 OK Getacl completed. b2 SETACL test valodim -l b2 OK Setacl complete. b3 GETACL test * ACL test valodim lrwstipekxacd b3 OK Getacl completed. My expectation was that the file would be created with default permissions, and the requested change then applied. However, no acl permission is set and no vfile is created for this mailbox in the process. This does work as expected (and a file is created) if I set a non-differential ACL first: b4 SETACL test valodim lrwstipekxacd b4 OK Setacl complete. b5 GETACL test * ACL test valodim akxeilprwtscd b5 OK Getacl completed. b6 SETACL test valodim -l b6 OK Setacl complete. b7 GETACL test * ACL test valodim akxeiprwtscd b7 OK Getacl completed. - V

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dovecot and sssd
by Günther J. Niederwimmer 02 Jan '17

02 Jan '17

Hello, is there a way to configure dovecot over sssd ? like driver = sss Thanks for a answer, -- mit freundlichen Grüssen / best regards Günther J. Niederwimmer

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