Bernd Bartmann wrote: > /var/log/maillog: > AUTH failure (LOGIN): authentication failure (-13) SASL(-13): > authentication failure: checkpass failed > > /var/log/messages: > saslauthd[3665]: do_auth : auth failure: [user=username] > [service=smtp] [realm=] [mech=shadow] [reason=Unknown] > > Does someone have an idea how to debug this further, esp. how to find > the real reason as the message [reason=Unknown] is not very helpful at > all. > > Is saslauthd still running? Could it have failed or not started if the server has rebooted? Ian