infra.bytetrust.net has no MX records.
Question and response
Question
dig infra.bytetrust.net. MX
Answer
The response has no answer records.
Authority
bytetrust.net. 3600 SOA dns12.ovh.net. tech.ovh.net. 2025120100 86400 3600 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0