katapultdns.com has no MX records.
Question and response
Question
dig katapultdns.com. MX
Answer
The response has no answer records.
Authority
katapultdns.com. 3600 SOA ns1.katapultdns.com. dns-admin.katapult.io. 1771800356 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0