pec.aruba.it has no AAAA records.
Apex domains cannot have CNAME records.
Actalis
Domain verification
actalis-dcv=8ojaf8tfkivdh5ar1lda6m8pcc
Zone apex
Start of authority
Email
Serial
2026022601
Refresh
1d
Retry
2h
Expire
4d
Negative cache TTL
1h