ns2.telcove.net has no MX records.
Question and response
Question
dig ns2.telcove.net. MX
Answer
The response has no answer records.
Authority
telcove.net. 3600 SOA dnsmgr1.level3.net. dns.level3.net. 2024103101 10800 3600 2592000 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0