g-ns3.pdxdns.net has no MX records.
Question and response
Question
dig g-ns3.pdxdns.net. MX
Answer
The response has no answer records.
Authority
pdxdns.net. 3600 SOA apollo.ns.pdxdns.net. dns.pdxnet.co.uk. 2026022501 7200 18000 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0