iristelx.com has no MX records.
Question and response
Question
dig iristelx.com. MX
Answer
The response has no answer records.
Authority
iristelx.com. 600 SOA ns35.domaincontrol.com. dns.jomax.net. 2022112800 28800 7200 604800 600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0