There are a number of reasons an organization may want to have multiple domains associated with their Google Workspace account.
First, we’ll look at some of the reasons for having multiple domains. We will then provide instructions for how to associate additional domains with your Google Workspace account.A company rebranding
If you change your company name or brand, you will likely get a new domain to reflect that brand. For example,
Old Brand & Domain: Abbott Solar – abbottsolar.com
New Brand & Domain: Abbott Power – abbottpower.com
After changing your organization’s brand, you will want emails sent to both email@example.com and firstname.lastname@example.org to go to Lisa’s inbox—perhaps indefinitely. Why? Because many people will continue to use the old domain when sending emails to employees.
We will refer to this scenario in several examples below.
A merger or an acquisition
Let’s say your business acquires another business. This is a variation of the rebranding scenario described above. You’ll likely want to connect the acquired company’s domain to your Google Workspace account.
Inclusion of multiple top level domains
If you own multiple top level domains for your domain, you may want to cover your bases by adding all of the domains to your Google Workspace account.
How to associate multiple domains with your Google Workspace account
An easy way to associate additional domains with your Google Workspace account is to add them as a domain aliases. Google allows for adding up to 20 domain aliases.
1. In Google Workspace Admin, navigate to Domains > Manage Domains. Then, click the Add a domain link.
You will need to verify ownership of the domain. There are host-specific steps for many domain hosts.
2. Configure the MX settings within your domain host. Google provides step by step directions on how to do this for many hosts. You can also copy the MX settings you used for your primary domain.
3. Instruct each user to go into their Gmail settings, Accounts and Import tab and set their default “Send mail as” to their email address for the new domain—email@example.com in our example above. The user should make sure the Treat as alias checkbox is checked.
You can change your Google Workspace primary domain to be the domain for your new company brand. However, it’s an involved process. Depending on your internal IT expertise, it may be worth engaging a Google Workspace specialist to perform the “primary domain swap.”
The disadvantages to keeping the old domain as the primary domain are:
- All users will need to continue to log into Google Workspace with the [old] primary domain address
- Shared Google Drive files and Calendar invites will display the old email address of the user to the recipient
The alternative to a domain alias is an additional domain. This is also known as a secondary domain. This is the option to use if the domain you’re adding has its own set of users.
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