ns3.za-dns.com has no MX records.
Question and response
Question
dig ns3.za-dns.com. MX
Answer
The response has no answer records.
Authority
za-dns.com. 86400 SOA ns3.za-dns.com. servers.za-dns.com. 2026022300 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0