www.perx.com has no MX records.
Question and response
Question
dig www.perx.com. MX
Answer
The response has no answer records.
Authority
perx.com. 300 SOA ns1.outserv.net. dns-admin.outserv.net. 2026021901 3600 3600 2419200 21600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0