host-212-253-91-248.reverse.superonline.net has no MX records.
Question and response
Question
dig host-212-253-91-248.reverse.superonline.net. MX
Answer
The response has no answer records.
Authority
superonline.net. 300 SOA ns4.superonline.net. system.superonline.net. 2026020401 3600 3600 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0