hcvlny.cv.net has no MX records.
Question and response
Question
dig hcvlny.cv.net. MX
Answer
The response has no answer records.
Authority
hcvlny.cv.net. 14400 SOA authns1.cv.net. abuse.optimum.net. 2013242105 7200 600 604800 28800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0