atginternet.com has no AAAA records.
Apex domains cannot have CNAME records.
v=spf1
+a +mx +ip4:207.115.113.2 +ip4:207.115.113.118 +ip4:209.233.7.5 +mx:mail.atginternet.com -all
Microsoft
Domain verification
MS=BD214230B6DE2E917DCA8249DA9479225C51057C
Zone apex
Start of authority
Email
Serial
2026010100
Refresh
1h
Retry
30m
Expire
14d
Negative cache TTL
1d