nic.ai has no MX records.
Question and response
Question
dig nic.ai. MX
Answer
The response has no answer records.
Authority
nic.ai. 300 SOA v0n0.nic.ai. alerts.afilias.info. 1771961582 86400 7200 3600000 172800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0