ua-145.metrooptic.com has no MX records.
Question and response
Question
dig ua-145.metrooptic.com. MX
Answer
The response has no answer records.
Authority
metrooptic.com. 600 SOA ns1.metrooptic.com. root.metrooptic.com. 2025122502 600 300 3024000 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0