There is a windows solution to this that I have not yet seen mentioned
here: Trend Micro's VirusWall with the eManager plug in. It works very well
at the server.

-----Original Message-----
From: SteveFdice.com
To: focus-mssecurityfocus.com
Sent: 1/3/2002 6:01 AM
Subject: RE: Exchange 5.5 locking down

> My solution was to just start using the sniffer ethereal. It
> will do smtp
> decodes so you can see the whole message, headers, etc
> without worrying
> about MS exchange logging, plus you can use it whenever you
> please and in
> some cases dont even have to touch the exchage server (if you
> are on a hub
> or somwhere that is easily sniffable).

I realize that this is an MS focused list, but my solution to the
spamming
problem was to funnel all incoming email into Linux host running
sendmail,
which virus scans and rejects mail based on originating IP, and has the
capability to reject based on content as well, though we do not do that.
We
can also use this machine to query the Realtime Blackhole List (RBL) for
known spamming sources and reject them automatically. This is another
feature that we are currently not using. Doing this has taken a bit of
the
load of dealing with the SPAM off of my Exchange server.

Steve Fuller

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