ns1.transtelecom.net has no MX records.
Question and response
Question
dig ns1.transtelecom.net. MX
Answer
The response has no answer records.
Authority
transtelecom.net. 86400 SOA ns.transtelecom.net. hostmaster.ns.transtelecom.net. 2021111902 28800 7200 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0