Hey Tom, Just received tha answer from Aruba, they say everything is ok, pls see below
the records are correctly set on the domain zone and seem to be correctly visited and resolved:
https://dnschecker.org/#CNAME/hs1-3978551._domainkey.conciergedigitale.it
https://dnschecker.org/#CNAME/hs2-3978551._domainkey.conciergedigitale.it
Also from other tools no anomalies are found.
https://www.whatsmydns.net/#CNAME/hs1-3978551._domainkey.conciergedigitale.it
https://www.whatsmydns.net/#CNAME/hs2-3978551._domainkey.conciergedigitale.it
I proceeded to reload the domain zone on our dns to re-propagate them, and he kindly invites you to carry out a new check this afternoon.