ns.inmotionhosting.com has no MX records.
Question and response
Question
dig ns.inmotionhosting.com. MX
Answer
The response has no answer records.
Authority
inmotionhosting.com. 14400 SOA ns.inmotionhosting.com. webserver.inmotionhosting.com. 2026022203 28800 600 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0