MSFT reverse IP failure?
math at sizone.org
Mon Feb 26 21:31:00 UTC 2018
Having a client doing a test from the MSFT exchange tools site, which is failing.
NOQUEUE: reject: RCPT from unknown[184.108.40.206]: 450 4.7.1 Client host rejected: cannot find your reverse hostname, [220.127.116.11];
NetRange: 18.104.22.168 - 22.214.171.124
CIDR: 126.96.36.199/13, 188.8.131.52/14, 184.108.40.206/11
A bit of an oversight?
Ken Chase - math at sizone.org Guelph Canada
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