ns4.webhs.org has no MX records.
Question and response
Question
dig ns4.webhs.org. MX
Answer
The response has no answer records.
Authority
webhs.org. 3600 SOA ns1.serverhs.org. reports.webhs.pt. 2025041600 86400 7200 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0