I have Barracuda Cloud Control that we are using with Microsoft 365.
In the Barracuda Cloud Control Console under Domains I've clicked Add Domain Filled in Domain name (myDomain.com) and mail server (I located this in Microsoft 365 Admin Domains myDomain.com).
It says our Domain already exists in their system which is true because a different company has been managing Barracuda for us, but we have decided to take over the responsibility of this.
Barracuda is now asking me to verify we own the domain. In your Domains DNS add a CNAME record with the following content:
Hostname:
Points To:
I logged into the DNS Server DNS Desktop App (DNS Manager) myDomain.com Right-click and select Alias (CNAME).
The Alias name box I add the leading part of the Hostname provided by Barracuda.
Example: Barracuda12345.mydomain.com
This updates the FQDN box to...