On 1/22/15 4:00 AM, Alessandro Vesely wrote: > > The current SMTP specification refers to the above for "more detail" from > Section 5.1 http://tools.ietf.org/html/rfc5321#section-5.1
Thanks for the reference. RFC 5321 sec 5.1 paragraph 4 says that the MX data contains a domain that must return an A or AAAA record; all other responses are invalid (outside the standard). My configuration is: mydomain.com MX mail.hosting.com mail.hosting.com CNAME server.hosting.com server.hosting.com A 1.1.1.1 So, this is invalid. -- -Justin [email protected]
smime.p7s
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