We are migrating a customer currently using exchange on a server that acts as their DC and houses AD. We are migrating them to a hosted exchange system provided by us. The problem is when we configure the new profiles in outlook with the new mailboxes, we get an autodiscover certificate popup that appears to come from the old server.
"The name on the security certificate is invalid or does not match the name of the site."
The issued to and by state the old server name.
The certificate popup includes a .local SAN
Is there a way to alleviate this or turn of the cert within the eac on the old server to stop it from happening?
However I did just find an autodiscover entry in the internal dns on the old server. Could that be doing it?