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From: Viktor Dukhovni (postfix-usersdukhovni.org)
Date: Wed Dec 04 2013 - 21:50:55 CST
On Wed, Dec 04, 2013 at 10:32:05PM -0500, Roman Gelfand wrote:
> Thanks. Then why is the message "Name service error for
> name=enlglobal.com type=MX: Malformed or unexpected name server
> reply"? Shouldn't the message have been "Domain enlglobal.com doesn't
> accept emails"?
Because Postfix does not explicitly support the original, long
expired, nullmx draft. The draft was revived this July with an 01
version, and will expire again in January 2014. Don't know whether
it is likely to gain more traction at the IETF this time around.
However, despite the generic malformed MX hostname message, Postfix
effectively supports the draft, by rejecting domains with null MX
RRs when via reject_unknown_sender_domain.