24 Jan
2014
24 Jan
'14
8:40 a.m.
On Fri, 24 Jan 2014 20:06:47 -0500, Scott Howard wrote:
Can you clarify what you mean by "doesn't match"? Just the usual forward-must-match-reverse, or something else like EHLO matching?
I asked Blair about this and he has clarified by pointing to the official docs on the matter: "The sending IP must have a PTR record (i.e., a reverse DNS of the sending IP) and it should match the IP obtained via the forward DNS resolution of the hostname specified in the PTR record. Otherwise, mail will be marked as spam or possibly rejected."
From https://support.google.com/mail/answer/81126?p=ipv6_authentication_error&rd=1#authentication
-- Michael Fincham System Administrator, Unleash Office: 0800 750 250