internal-relay02.per01.ds.network has no MX records.
Question and response
Question
dig internal-relay02.per01.ds.network. MX
Answer
The response has no answer records.
Authority
per01.ds.network. 3600 SOA names1.ds.network. dns.ds.network. 2026022102 7200 120 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0