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Re: Sending mail from dynamic IP-addresses with dynamic PTR hostnames, but constant EHLO/HELO hostnames

2005-05-25 13:48:57
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Constantine A. Murenin wrote:
What about macros with "h = HELO/EHLO domain"? How could I set it to test
if the HELO/EHLO domain resolves to an ip-address of the connected
client, along with the testing that the domain is in the example.name
zone? 

The problem with the %{h} macro is that the HELO/EHLO domain is not 
_guaranteed_ to be verified.  The SPF specification recommends that 
implementations check the HELO domain, too, but it isn't mandated for 
historical reasons.
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