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