_spfasia.colt.net has no MX records.
Question and response
Question
dig _spfasia.colt.net. MX
Answer
The response has no answer records.
Authority
colt.net. 3600 SOA ns20.colt.net. eudnsmaster.colt.net. 2024104151 10800 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0