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From Joseph Brennan <bren...@columbia.edu>
Subject Re: Whitelist questions
Date Tue, 05 Oct 2010 14:56:49 GMT


--On Tuesday, October 5, 2010 10:40 -0400 Alex <mysqlstudent@gmail.com> 
wrote:

> I have an email that I'm trying to whitelist using whitelist_from_rcvd
> and it's not working as I expect. I've created an entry:
>
> whitelist_from_rcvd user@lanyon.com savvis.net
>
> Here is the corresponding received header:
>
> X-Envelope-From: <user@lanyon.com>
> Received: from S253906HZ1EW06.usstls6-hosting.savvis.net (unknown
> [209.16.192.170])
>
> Is it because there is no reverse DNS entry?


Yes.

Notice also that the rule checks the header From:, not the envelope,
and they could be different.

Joseph Brennan
Columbia University Information Technology



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