_spf.o74.net has no MX records.
Question and response
Question
dig _spf.o74.net. MX
Answer
The response has no answer records.
Authority
o74.net. 300 SOA dns14.ovh.net. tech.ovh.net. 2026022205 86400 3600 3600000 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0