John Charles: > Eek, apologies for the double-post, accidently hit shift-enter before I > completed the message. > > > I have one remote SMTP server I want to relay mail through, but > connect to it using differing credentials based on sender; using > Postfix 2.3. My relevant files are below, but the relay host is > rejecting my mail as it doesn't seem to be getting the login > credentials from my postfix instance. Do I need to upgrade to > Postfix 2.7 and utilize "sender_dependent_default_transport_maps" > ?
No, but you might want to upgrade and use smtp_sender_dependent_authentication Wietse