Blacklist - help with blocking my domain

[Bryan Haase <BH...@good-sam.com>]

Hello,
I have created a blacklist_from for my domain .com .org etc.... The blacklist works 'Great" but I have 1 glitch. The blacklist hits on some mailing lists, unknown user/return email, or mailbox full. I am thinking this is caused by the return-path?!? I attempted to create a custom header rule to score -100, to equal the blacklist but that is not helping me. I am guessing I need to do something different with the @ symbol but couldn't find any info on that.

So I need some help.........is there a better way to block your domain then the blacklist_from and how do I let message like the one below bypass.

Thanks
--Bryan

header gss_return_mail /MAILER-DAEMON@good-sam.com/
describe gss_return_mail  -for bounced mail sent to wrong address
score gss_return_mail  -110.0

Return-Path:<MA...@good-sam.com>
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                    From: "Paul Soriano" <pa...@usav.org>
                       To: "usarotations List Member" <JG...@GOOD-SAM.COM>
                   Subject: [usarotations] USA Volleyball Rotations Newsletter - March 25, 2004
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