5t53221@mci.com writes:
> Authenticated sender is <5t53321@mci.com>
> Subject: 2-24
> Mime-Version: 1.0
> Content-Type: text/plain; charset=3D"us-ascii"
> Content-Transfer-Encoding: 7bit
>
> EMAIL MARKETING WORKS!!
[Offal Deleted]
Now, if you look at the header:
> From: 5t53221 <5t53221@mci.com>
> Sender: owner-linux-kernel@vger.rutgers.edu
> To: <linda@net-connect.net>
> Date: Wed, 25 Feb 1998 02:34:58 -0600
This wasn't sent to the linux-kernel list, either in a "To:" or a
"Cc:" line. So one simple recipe would be to send messages without
such header lines to /dev/null.
Another recipe could be to not allow postings by people not on the
mailing list. I thought that this was already done?
Yet another recipe could be to check the domain in the "From:" address
and see if there is a match somewhere in the received path (i.e. a
simple forgery test).
So how about it guys? I have the feeling that spammers are targeting
more and more mailing lists.
Regards,
Richard....
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