Well, 'mechanisms' defines what kind of authentication dovecot accepts. In your previous config, you didn't have any mechanisms defined. I haven't checked, but I'd guess that without those authentication wouldn't work. Plain text mechanisms are plain and login. If you don't use dovecot as SMTP-AUTH backend for postfix, plain is enough. 'login' is needed for Outlook when dovecot is used as smtp-auth.
I guess your problem was in missing mechanisms. You could try removing it (commenting it out) and then try plain text auth. Please report if that was an issue. -- Dovecot Plain auth broken in 1.1.1, fixed in 1.2.1 https://bugs.launchpad.net/bugs/398733 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs