We run an internal mail server and a perimiter mail relay (that receives inbound mails and forwards to internal mail server).

What we did is create a blacklist on the perimiter mail relay for anything from [EMAIL PROTECTED]




From: Paul Johnson <[EMAIL PROTECTED]>
To: [email protected]
Subject: Re: [exim] Way to Prevent Spoofed Internal Addresses?
Date: Sat, 25 Jun 2005 17:45:35 -0700
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On Saturday June 25 2005 1:54 pm, .|MoNK|Cucumber . wrote:

> We have this blocked inbound from the net (not allowing anything
> from the internal domain to come in), however, people can still
> spoof from addresses internally.

How do you block it inbound from the net?

--
Paul Johnson
Email and Instant Messenger (Jabber): [EMAIL PROTECTED]
http://ursine.ca/~baloo/
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