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Re: a small explanation on rule FORGED_RCVD_HELO

From: Claude Frantz <claude(at)pc0312b.rz.unibw-muenchen.de>
Date: Tue Aug 14 2007 - 05:11:31 EDT

Matt Kettler wrote:

> It looks for a HELO doesn't match against the reverse DNS for the IP
> address.

Please note the case of clients connected to the network via NAT and using dynamic IP addresses. In the general case, such clients do not known about the IP address to which one their local address is translated using NAT. Such clients cannot set a correct HELO.

Claude Received on Tue Aug 14 05:12:52 2007

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