How do I add a domain to Microsoft 365?

This FAQ will help you to add a domain name to your Microsoft 365 package (formerly Office 365).

The below instructions will show you how you can set up a domain name, by either adding one you already own, using one from a different source, or registering a new domain name.
Step 1 of 6

Start by logging in to your 123 Reg Control Panel. If you haven’t already done so, you’ll need to activate your Microsoft 365 package. For more details on how to perform this, please read the following Support article: How do I activate my Microsoft 365 package?

From there, select Manage opposite your Microsoft 365 package under the Manage Active Products section. Alternatively, you can scroll down to the Email section and select Manage Microsoft 365.

Manage Microsoft 365

 

Step 2 of 6

On the next page, select Log into Microsoft 365.

Log into Microsoft 365

 

Step 3 of 6

This will take you to your Microsoft 365 Control Panel. From here, select the Domains tab in the top right-hand corner.

Select Domains tab

 

Step 4 of 6

Here you’ll see each domain you have in your package. From here, click the Add Domain button at the bottom of the page.

Add domain

 

Step 5 of 6

A pop-up window will now appear where you can choose which domain name you want to use.

Once you’ve made your selection, click Add.

Choose your domain

 

Step 6 of 6

If your domain name is using our nameservers, we will now verify it. This communicates with Microsoft that this is the domain name that you would like to use for your package.

Once your domain name is verified, you can go on to add users and begin using your Microsoft 365 package.

Verify domain

Please note: If you are using a domain from an alternative source, you will need to make some DNS changes through your provider’s Control Panel. If you choose to register a new domain, you will be taken to our powerful domain search tool, so that you can pick your perfect domain name.