web-forward.dnsexit.com has no MX records.
Question and response
Question
dig web-forward.dnsexit.com. MX
Answer
The response has no answer records.
Authority
dnsexit.com. 1200 SOA ns1.dnsexit.com. admin.netdorm.com. 2000060701 86000 180000 1814400 1200
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0