ns03.pf has no MX records.
Question and response
Question
dig ns03.pf. MX
Answer
The response has no answer records.
Authority
pf. 43200 SOA ns1.mana.pf. system.mana.pf. 2026030200 3600 900 1209600 43200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0