Date: 21-10-05 14:37
Can you post the actual error message.
Also, I have done this before and would reccomend Sendmail for this over postfix.
I run postfix right now and love it except for one item and I will be going back to sendmail for it.
I can not reject an SMTP session via SpamAssassin. You have to accept the email and pass it off to another handeler like Amavis. With Sendmails milter, it will pass it as it accepts it and can reject it on the fly.
I used to run Sendmail with a program called PureMessage (now owned by Sophos) and loved it. Web based sieve configuration and it was REALLY fast.
I am now working on going back to Sendmail and am looking at Mimedefang.
Anyways, post your error message and config files if you can, I'd love to help you out.