----- Original Message ----- 
From: "Chase Seibert" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, March 17, 2005 11:25
Subject: RE: Re[2]: [IMail Forum] Connecting to a MySQL Database that is
using Radius Authentication


> The question is, did they use some iMail exploit I am unaware of, or could
they possibly forge the first-hop IP address? I am not aware whether that is
currently even possible, or if so if it's in use by spammers currently.
Maybe as a tactic to make IP blacklisting unpractical?

In my experience the only hop you can trust is the one between the external
IP and your server.  I've seen faked Received Froms used as filler to fool
some spam scanners.  You can only trust those records which your servers
actually write.


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