Matching domain to sender.

[Matt Kettler]

At 09:09 AM 2/2/2005, David Curtis wrote:
>I have not seen this setting and thing that it might prevent a ton of
>spam. I may be wrong. Just your normal System Adin...no super human
>traits.
>
>Can you run some rule to check the senders ip and or domain name and
>match that to the mail from address?

One word of caution with this. Don't expect this to be have a low
false-positive rate. It's very common to use MX's which mismatch the domain
name of the server.

For example, xanadu.evi-inc.com acts as the outbound MX for both
mkettler at evi-inc.com and mkettler at evitechnology.com.

Really, this is what SPF is for.

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