Teams: CyberEscape Online - How to Add or Remove Allowed Email Domains
You can add or remove approved domains to your Teams account by navigating to "Account" under the Settings menu along the left hand side.
Next, you'll see the list of Allowed Email Domains. Select the Edit button to add or remove allowed email domains.
Please note: You do not need to enter the "@" symbol. You will just enter the domain, such as livingsecurity.com, and then press enter.