How to Add Additional Domains to Google Apps

Hi there, I’m Shane. I’m a sales engineer, but today I’m blogging.

Let’s say you’re running your company on Google Apps. Thanks to unprecedented growth, it’s doing great. So great, in fact, that you’ve decided to launch a new brand, is going to be huge, and you need to look professional, unifying your new brand with your existing brand. Some existing employees are going to need email addresses, and your new employees will need to be able to easily collaborate with everyone from both brands.

Don’t worry, you won’t need to set up a whole new Google Apps tennant just for these users. You can easily add to the existing Google Apps tennant.

By adding an additional domain under your Google Apps tennant, you can assign aliases to your existing users. Then your users can have just one mailbox for both brands, and you only need to use one additional license. In the future, users can be added as users from the start. All in all, every user is now part of the same Google Apps tennant, and has the same global address list and collaboration features as the existing users of

How to add a domain in 5 steps


The first thing you need to do is register your new domain. Providers like,, and can all help you with finding an available domain, and registering it for a small fee annually.


Open your Google Apps Admin panel, In the admin panel, click on “Domains”. Then click on “Add a Domain or Domain Alias” at the top left of the page.


There will be a pop-up window prompting you to insert your domain, and whether you’d like to add it as an “alias domain” or an “additional domain”. Changing options down the road isn’t easy, so it’s important to choose the one that applies best.


Alias Domain vs. Additional Domain 

An alias domain is only used for aliases, and upon creation, automatically adds an alias to all users matching their primary email address. If I created as an alias domain, would automatically get as well. 

If you select an additional domain, it would allow you to add to bob’s widgets account, but it would have to be done manually. Additionally though, you would be able to make his primary login, and not just an alias.

When in doubt, we encourage people to choose additional domain, as it offers more options for control that aliasing doesn’t.


Once you’ve added the domain, you’ll automatically be taken to verify the newly added domain. You need to prove to google that you own the domain before you can act on it’s behalf. You’ll see a dropdown menu with a list of domain registrars. Find yours on the list. Select it, and Google will give you a step-by-step on just how to complete this process, or in some cases, even an automated process.

If your registrar isn't on the list...

Select “Other” towards the bottom. This will provide you with the contents of a TXT record that you’ll need to to your DNS records. If you’re unfamiliar with this process, check the help documentation available from your registrar or DNS provider. You can also call their support line.


Switch back to the google verification panel, and click “verify”. If you were successful, it will tell you, and return you to your admin panel. If it’s unsuccessful, be patient. DNS updates can sometimes take as long as 24 hours to propagate to where google can see them.

Congratulations! You’re ready to start creating aliases, users, and groups all using your new domain name. If you have any questions about this process, ask us in the comments below, or contact Google support.