pdxdns.com has no MX records.
Question and response
Question
dig pdxdns.com. MX
Answer
The response has no answer records.
Authority
pdxdns.com. 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