dns2.soho-net.ne.jp has no MX records.
Question and response
Question
dig dns2.soho-net.ne.jp. MX
Answer
The response has no answer records.
Authority
soho-net.ne.jp. 600 SOA dns1.soho-net.ne.jp. admin.dns1.soho-net.ne.jp. 2023112411 600 3600 604800 600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0