pmg2-internal.artelis.net has no MX records.
Question and response
Question
dig pmg2-internal.artelis.net. MX
Answer
The response has no answer records.
Authority
artelis.net. 3600 SOA ns1.artelis.net. hostmaster.artelis.net. 2026022701 28800 3600 1728000 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0