"Hubbard, David" wrote:
> 
> Hi all,
>    I've got a couple of places that like to
> subscribe non-existant email addresses to
> mailing lists without confirmation.  One of
> these bastards is winvite.com.  The problem
> I'm having is that they don't send their
> emails with a "From" header, so control/badmailfrom
> with an @winvite.com entry is not blocking
> their mail.  The other problem is I can't
> block them by IP because they seem to have
> a large amount of outgoing mail servers.  I
> get the emails from mail##.winvite.com where
> ## can be any number.  The servers so far have
> followed that pattern though, so is there
> anything I can do?

I use rblsmtpd, and a local RBL style domain, which allows me 
to block off whole netblocks with a 'dig' command and a couple 
of Python scripts.  Also allows me to give a customized "middle 
finger" bounce message to each domain.  New spammers can be 
blocked off within seconds of popping up.

Contact me off-list if you'd like more info.

Eric

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