From: Wietse Venema (wietseporcupine.org)
Date: Thu May 01 2003 - 07:46:44 CDT

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Hal Murray:
>
> > This is exactly why I use reject_unverified_sender. As soon as
> > someone sends SPAM with a real sender address, the account is closed
> > because of all the bounces, and my Postfix never accepts it.
>
> Thanks.
>
> Does anybody have any data on how much spam that catches? What other
> anti-spam measures are you using ahead of it?

reject_unverified_sender and list.dsbl.org stop the far majority
of SPAM for me.

> I'd expect reject_mismatched_sender_domain to catch a lot of spam. I wonder

list.dsbl.org already stops that mail for me.

        Wietse

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