ietf-mxcomp
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Re: plan for april 5th xmpp conference...

2004-03-26 15:00:55

Yakov Shafranovich wrote:
in-addr.arpa domain


We should probably clarify that this is not the same as a rDNS check to see if an IP has an rDNS record.


Clarification: I want to make sure that the MTA MARK-style check is not confused with what some people do to fight spam by rejecting email from IPs lacking any rDNS records.

Yakov