MSFT reverse IP failure?
jeffmeal at microsoft.com
Mon Feb 26 22:46:55 UTC 2018
Which "Exchange tools site" are you referring to?
Happy to help get this fixed up.
From: NANOG <nanog-bounces at nanog.org> On Behalf Of Ken Chase
Sent: Monday, February 26, 2018 1:31 PM
To: nanog at nanog.org
Subject: Re: MSFT reverse IP failure?
Having a client doing a test from the MSFT exchange tools site, which is failing.
NOQUEUE: reject: RCPT from unknown[188.8.131.52]: 450 4.7.1 Client host rejected: cannot find your reverse hostname, [184.108.40.206];
NetRange: 220.127.116.11 - 18.104.22.168
CIDR: 22.214.171.124/13, 126.96.36.199/14, 188.8.131.52/11
A bit of an oversight?
Ken Chase - math at sizone.org Guelph Canada
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