clients.sappa.info has no MX records.
Question and response
Question
dig clients.sappa.info. MX
Answer
The response has no answer records.
Authority
clients.sappa.info. 38400 SOA ns1.sappa.info. abuse.sappa.se. 2021090701 10800 3600 604800 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0