dns5.state.ar.us has no MX records.
Question and response
Question
dig dns5.state.ar.us. MX
Answer
The response has no answer records.
Authority
state.ar.us. 900 SOA dns1.state.ar.us. please_set_email.absolutely.nowhere. 2023061486 10800 3600 2419200 900
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0