ns2.tbaytel.net has no MX records.
Question and response
Question
dig ns2.tbaytel.net. MX
Answer
The response has no answer records.
Authority
tbaytel.net. 300 SOA ns1.tbaytel.net. admin.tbaytel.net. 2017191733 10800 3600 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0