Mail Server Relay Authentication Failure in Server Admin
I need to set up Mail Server to relay through my ISP. I know that I can authenticate to smtp.comcast.net:587 using my account and TLS usnig a mail client.
However, when I use Server Admin to configure my server's SMTP to send all outgoing email through this relay (Server Admin>Mail>Settings>General>
Rely outgoing mail through host: smtp.comcast.net:587
Authenticate to rely with user name: user
I get the SMTP error:
SASL authentication failed: cannot authenticate to server smtp.comcast.net[76.96.62.117]: no mechanism available
There are no toggles on Server Admin to specify TLS or SSL or anything for authentication.
Does anyone know how to tell Server Admin how to authenticate an SMTP relay to smtp.comcast.net using TLS, which is apparently what comcast expects?
Mac mini, Mac OS X (10.6.7)