Change the domain on my Office 365 email account
Sometimes you need to change the domain associated with your address. Before you can change your domain, it must:
- Be registered with GoDaddy.
- Be registered in the same account as your Office 365 email plan.
- Have an active zone file for the GoDaddy domain and be in the same account as your Office 365 email plan.
Change your Office 365 email domain
You can watch a short video of this task farther down the page.
- Log in to your Email & Office dashboard.
- Click Manage next to the email address you want to update.
- Inside the area labeled Account Information, click Edit.
- Next to Username, click Change domain. A dropdown list will show the available domains in your account that meet the requirements for use on Office 365.
- Select your new domain and click Ok, Got it to acknowledge that your new and old domains will be linked.
- Select Save. You might be asked to update your password and create a new one. Enter and confirm your new password then click Save & Continue.
It can take up to 24 hours for your domain change to take affect.
Show me how
- To continue to send and receive email, you'll need to remove your old email address from your devices and add your new one.
- Add my Office 365 email address to my desktop
- Add my Office 365 email address to my mobile phone
- If you change the username, it automatically creates an alias (or a forward) of the previous username so you won't miss any emails sent to the old email address.
- For information on managing your domain's DNS at GoDaddy, visit Manage DNS zone files.
- For help logging into your Office 365 email account, visit Sign in to Office online or Outlook.com.