ns4.tricom.net has no MX records.
Question and response
Question
dig ns4.tricom.net. MX
Answer
The response has no answer records.
Authority
tricom.net. 3600 SOA ns1.tricom.net. technical.tricom.net. 2024060701 3600 900 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0