msrv.tot.center has no MX records.
Question and response
Question
dig msrv.tot.center. MX
Answer
The response has no answer records.
Authority
tot.center. 300 SOA ns1.beget.com. hostmaster.beget.com. 1729070140 300 600 86400 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0