>> If you can figure out how to bounce these back to the original *sender* >> rather than the other hapless victim whose email address is in the From >> or Reply-To header, then more power to you.
Actually... You can use qpsmtpd (it does work with postfix, despite the seemingly deceptive name...) to run SA while the connection is still open and return a 5xx to the originating MTA while still within the SMTP dialog resulting in more of a "true bounce". It's written in perl (slow, but very hackable) -- and I've had good results using pperl. -- Timothy G. Wesemann Voicenet Systems Administration
