ns2.dpacguam.net has no MX records.
Question and response
Question
dig ns2.dpacguam.net. MX
Answer
The response has no answer records.
Authority
dpacguam.net. 300 SOA ns1.dpacguam.net. sysadmin.guamcell.net. 2023110212 86400 3600 604800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0