www-server.personifycorp.com has no MX records.
Question and response
Question
dig www-server.personifycorp.com. MX
Answer
The response has no answer records.
Authority
personifycorp.com. 900 SOA ns1-03.azure-dns.com. hostmaster.personifycorp.com. 2016110568 900 600 86400 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0