On 8-Jun-07, at 2:50 PM, Christopher Bonner wrote:
I know this question has come up a zillion times already, but I have
searched through the discussion forums and mailing list archives to no
avail.
We have a 10.4 mail server setup, and all mail access internally to
our
network is working fine. The webmail also works fine outside of our
network. The only problem is sending mail from outside of our local
network. SMTP authentication is turned on, but I am constantly getting
relay access denied.
Our school sits behind the city councils network. Our server IP is
10.186.0.4 which has an external IP of 193.122.27.61. DNS records are
setup correctly internally and externally.
If you're getting a 'Relay Access Denied' error, then your clients
aren't authenticating.
Some things to look at:
- Correct setting for outgoing mail server.
- Correct authentication credentials for the outgoing mail server
(Account Name/Password). These are set separately from the incoming
mail server although in most cases are the same settings.
- Correct authentication type (Plain or Login according to your
postconf -n output)
- Correct port number for outgoing mail server (25 or 587). If using
587, is the port open in the firewall, is Postfix configured for
Submission port access?
--
Gino Cerullo
Pixel Point Studios
21 Chesham Drive
Toronto, ON M3M 1W6
