I ran into this awhile back before finding this bug, and resolved the problem with the attached changes. I'm serving pop3 and managesieve in addition to imap, so this patch covers and is tested for those cases too.
** Patch added: "0001-update-dovecot-script-for-Ubuntu-12.04.patch" https://bugs.launchpad.net/ubuntu/+source/logwatch/+bug/1058760/+attachment/3578581/+files/0001-update-dovecot-script-for-Ubuntu-12.04.patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to logwatch in Ubuntu. https://bugs.launchpad.net/bugs/1058760 Title: unmatched entries for dovecot login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/logwatch/+bug/1058760/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs