Support for on-premises Microsoft Exchange 2003, 2007, 2010, 2013, and 2016 data migration using the data migration service is no longer available. For new migrations, use GWMME .
After you set up your Google Workspace account and TLS certificate, make sure that your source account is set up correctly.
Where are you migrating from?
- Sign in with a super administrator account to the Google Admin console.
If you aren’t using a super administrator account, you can’t complete these steps.
- Click Set Data Migration Up.
- Under Migration Source, select Microsoft Office 365.
- Select your data type and click Authorize.
- Enter or select your Microsoft admin account.
The account must have the Global Administrator role.
- Enter your password and click Sign in. Then, click Acceptafter reviewing the permissions.
- Click Start.
Applies to Microsoft Exchange Server 2007, 2010, 2013, and 2016 .
You need to
- Open EWS ports on your source account server.
- Set up the role account.
You need to grant impersonation rights (not delegation permission) to your role account. For details on impersonation rights, refer to your Microsoft documentation.
Recommendations
- Test your Exchange server connectivity with the Microsoft Remote Connectivity Analyzer .
- If you're an Exchange user, verify the EWS setup and point a browser to the EWS URL. If the EWS setup is correct, your browser displays a sign-in page.
- Ensure your server gets connections from Google IP address ranges .
- Verify your UPN. You might need to modify the UPN if you see an authentication error.
Applies to webmail providers, such as Yahoo!, and other IMAP servers .
You need to
- Choose a role account—When migrating from an IMAP webmail server, the Google Admin console prompts you to enter the username and password of the role account. This is an account on your source mail server. The data migration service uses it to test connectivity to your mail server. See Role account .
- Google IP address ranges—Ensure your server connects to Google IP address ranges .
If required, see the additional setup steps for migrations from Gmail .
To migrate emails from Google Workspace, you must use the new data migration service. For details, go to Migrate email from a Google Workspace account .
These instructions apply to an existing Google Workspace account. If you selected the Gmail migration option, see Personal Gmail account instead.
You need to
- Make sure that your old Google Workspace account is active. The data migration service can't migrate data from a suspended account.
- Turn IMAP on for users. For details, go to Turn POP & IMAP on and off for users .
- If you have 2-Step Verification or single sign-on (SSO) turned on, generate an App Password for the data migration service. You'll use it later in the Google Admin console when you're migrating mail. For details, go to Sign in with App Passwords .
Your users need to
- In their old Google Workspace account, sign in to Gmail.
- In the top corner, click Settings See all settings.
- Click Forwarding and POP/IMAP.
- Under IMAP access, select Enable IMAP.
- Under Folder size limits, select Do not limit the number of messages in an IMAP folder (default).
- Click Save changes.
Note:If you saved any changes, you need to repeat step 2 to return to Settings.
- Click Labels.
- Make sure that any label that needs to be migrated has the Show in IMAPbox checked.
Applies to personal Gmail accounts (ending with @gmail.com or @googlemail.com) .
Note: You can use this option when migrating from an existing Google Workspace account, but you have to authorize each source user separately. Therefore, it isn't recommended.
Your users need to
- In their old Gmail account, sign in to Gmail.
- In the top corner, click Settings See all settings.
- Click Forwarding and POP/IMAP.
- Under IMAP access, select Enable IMAP.
- Under Folder size limits, select Do not limit the number of messages in an IMAP folder (default).
- Click Save changes.
Note:If you saved any changes, you need to repeat step 2 to return to Settings.
- Click Labels.
- Make sure that any label that needs to be migrated has the Show in IMAPbox checked.
Gmail users must also allow the data migration service access to their account. You'll complete this step later when you migrate email to Google Workspace .
Next step
Follow the steps in Migrate email to Google Workspace .
Recommendations
- Run a test migration before migrating data.
- Ensure your server gets connections from Google IP address ranges .
- For details on setting up your Domino server, consult your Domino documentation.
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