dns.nortenet.pt has no MX records.
Question and response
Question
dig dns.nortenet.pt. MX
Answer
The response has no answer records.
Authority
nortenet.pt. 3600 SOA dns.nortenet.pt. alves.nortenet.pt. 2025080705 28800 7200 1209600 7200
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0