mailsv.yht.co.jp has no MX records.
Question and response
Question
dig mailsv.yht.co.jp. MX
Answer
The response has no answer records.
Authority
yht.co.jp. 3600 SOA ns1.hs.ctc.jp. postmaster.yht.jp. 2025100100 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0