On Thu, 2010-10-21 at 16:37 +0200, Oliver Eales wrote: > *virtual_transport = lmtp:unix:private/dovecot-lmtp *
LMTP does a userdb lookup normally. > *Oct 21 15:48:03 auth: Info: passdb(username): allow_nets check failed: > Remote IP not known So this shouldn't be happening. Are you using userdb static, and Dovecot is doing a passdb lookup because of it? Could you replace it with userdb lookup for lmtp-only? protocol lmtp { userdb { driver = ldap args = dovecot-ldap.conf } }