mx-upcmail-net.nl2.edge.unified.services has no MX records.
Question and response
Question
dig mx-upcmail-net.nl2.edge.unified.services. MX
Answer
The response has no answer records.
Authority
nl2.edge.unified.services. 3600 SOA idm4-prd-nl2-oss.ipa.unified.services. sysops.unified.services. 1773038537 3600 900 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0