We've had a couple of incidents where people's mailboxes have been
inundated with backscatter because spammers have been forging their
e-mail address as the sender of spam.
DCC isn't likely to help, since the text in the NDRs varies a lot.
As someone else noted, you can do pretty good filtering by checking for
known crudware sending the bounces. Another possibility is to look for
headers in the body of the bounce that your system added, or even just the
IP address or rDNS of your outbound mail server.
If you really want to get rid of bad bounces, try BATV,
http://www.mipassoc.org/batv/index.html, which puts a signature in the
bounce address that all your real bounces will then have. Works great,
once you set it up.
Regards,
John Levine, [EMAIL PROTECTED], Primary Perpetrator of "The Internet for
Dummies",
Information Superhighwayman wanna-be, http://www.johnlevine.com, ex-Mayor
"More Wiener schnitzel, please", said Tom, revealingly.
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