SPF can help a bit, if the receiver of the spoofed emails uses SPF for filtering and does not bounce on SPF violation.
We've been able to limit the bounces that get through so far to just a few, mostly through detection of any remnants of the original spam in the bounce. Darin. ----- Original Message ----- From: "Kevin Stanford" <[EMAIL PROTECTED]> To: <declude.junkmail@declude.com> Sent: Thursday, September 27, 2007 9:49 AM Subject: [Declude.JunkMail] Postmaster Spoofed Returns Does anyone have any suggestions on how to stop returned email on spoofed email addresses for our domain. I was going to setup a rule but it would catch good and bad alike... Thanks, Kevin --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com. --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.