iris.linocomm.net has no MX records.
Question and response
Question
dig iris.linocomm.net. MX
Answer
The response has no answer records.
Authority
linocomm.net. 3600 SOA pns31.cloudns.net. admin.linocomm.net. 2026030902 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0