Windows 2008R2/Exchange 2010 Mail rejecting from Gmail
Hi Exchange Gurus, I'm looking for a solid solutions for below;
mx.google.com gave this error:
[2002:4b7e:gaag::4b7e:daab] Our system has detected that this message does not meet IPv6 sending guidelines regarding PTR records and authentication. Please review https://support.google.com/mail/?p=ipv6_authentication_error for more information. b7si8965695qad.30 - gsmtp
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