mail02.ma2t.com has no CNAME records.
Question and response
Question
dig mail02.ma2t.com. NS
Answer
The response has no answer records.
Authority
ma2t.com. 275 SOA pns41.rootdns.eu. hostmaster.root.fr. 2026021301 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0