72-250-129-197.midrivers.com has no MX records.
Question and response
Question
dig 72-250-129-197.midrivers.com. MX
Answer
The response has no answer records.
Authority
midrivers.com. 3600 SOA udns1.ultradns.net. hostmaster.midrivers.com. 2020060586 3600 3600 86400 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0