reverse.as200780.net has no MX records.
Question and response
Question
dig reverse.as200780.net. MX
Answer
The response has no answer records.
Authority
as200780.net. 10800 SOA ns1.gandi.net. hostmaster.gandi.net. 1771605306 10800 3600 604800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0