On 1.1.2010, at 18.19, Spyros Tsiolis wrote: > Something worth noticing for step "5". If I do this logging-in with the > "u...@fqdn" format, the systems kicks me out. I, then, check the latest > on "/var/log/dovecot/errors" to find that the system does not complain > about the auth.
If it disconnects you immediately, it really should have logged an error. Are you sure the errors go to that log file? Verify like http://wiki.dovecot.org/Logging says. Also auth_debug=yes could be helpful.