trypticon.astound.com has no MX records.
Question and response
Question
dig trypticon.astound.com. MX
Answer
The response has no answer records.
Authority
astound.com. 300 SOA master.dns.rcn.net. hostmaster.rcn.com. 2026022201 7200 900 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0