mailer3.action.group has no MX records.
Question and response
Question
dig mailer3.action.group. MX
Answer
The response has no answer records.
Authority
action.group. 300 SOA ns1.fr.ru. internet.action-media.ru. 2026022304 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0