ns.adamscomputerandnetwork.com has no MX records.
Question and response
Question
dig ns.adamscomputerandnetwork.com. MX
Answer
The response has no answer records.
Authority
adamscomputerandnetwork.com. 603 SOA ns.ar-star.com. postmaster.ar-star.com. 2025103001 28800 7200 604800 603
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0