alpinetdns.mycingular.net has no MX records.
Question and response
Question
dig alpinetdns.mycingular.net. MX
Answer
The response has no answer records.
Authority
mycingular.net. 10800 SOA alpinetdns.mycingular.net. dnsadmin.cingular.com. 2025062401 3600 900 604800 10800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0