ns.integritywatch.com has no MX records.
Question and response
Question
dig ns.integritywatch.com. MX
Answer
The response has no answer records.
Authority
integritywatch.com. 82000 SOA ns1.dc.hu. netadmin.ns1.dc.hu. 2003031008 43200 14400 2592000 82000
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0