notifier.web.plus has no MX records.
Question and response
Question
dig notifier.web.plus. MX
Answer
The response has no answer records.
Authority
web.plus. 3600 SOA premium1.ezydomain.com. technical.webnic.cc. 202505470 10000 2400 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0