Use DMS to migrate email from Exchange or Office 365

Migrate with the data migration service

If you're migrating to G Suite from Microsoft® Exchange or Microsoft Office 365™, you can migrate email using the data migration service.

If you're migrating from another environment, see other ways to migrate email using the data migration service.

You must be signed in as a super administrator for this task.

Before you begin

Is my legacy environment supported?

Yes, if you're migrating from the following Exchange Web Services (EWS) environments: Office 365, Exchange 2016, 2013, 2010, 2007 or 2003.

If EWS isn't your legacy environment, see your other options for migrating email with the data migration service. Or, you could consider using another migration tool.

Is my G Suite edition supported?

The data migration service supports Drive Enterprise and G Suite Enterprise, Business, Basic, and Education accounts. Compare G Suite editions.

Note: If you have Drive Enterprise, you can only migrate contacts. You can't migrate email or calendar data.

Set up your legacy environment (required)

Before you can use the data migration service, you need to prepare the environment you're migrating from. For details, see Prepare your legacy environment.

Migrate email from Microsoft Exchange or Office 365


Set up the data migration service (required)
  1. Sign in to your Google Admin console.

    Sign in using your administrator account (does not end in

  2. From the Admin console Home page, go to Data migration.

    To see Data migration, you might have to click More controls at the bottom.

  3. Select the Email option and click Continue.
  4. On the Email Migration screen:
    1. From the Migration source list, select the Microsoft Exchange or Office 365 mail server that matches your legacy environment (where you're migrating from). 
    2. Select the connection protocol of the legacy mail server by choosing an option:
      • To automatically determine the protocol, select Auto select (Recommended).
      • To specify the Exchange Web Services URL for your legacy service, select Exchange Web Services and type the URL. The URL is the is the address that Exchange uses to communicate with Exchange Web Services, for example,
    3. Enter the email address and password for your role account.  
  5. Click Connect
  6. (Optional) If the connection fails, verify that the role account and connection protocol information is correct. Then, click Connect again. 
  7. In the Migration start date and Migration options sections, accept the default options or choose to exclude data that doesn't need to be migrated
  8. Click Select Users.

Next: Go to Migrate email for a single user or Migrate email for multiple users.

Migrate email for a single user
  1. Complete the steps to set up the data migration service.
  2. Hover over Add Add and click Select user Select user.
  3. In the Migrate From field, enter the user's Exchange email address.
  4. In the Migrate To field, start typing the user's new G Suite email address and choose from the list of suggested users. 
  5. Click Start.
  6. (Optional) To migrate another user's email, repeat these steps. 

Tip: To exit a completed migration, click Settings Settings > Exit migration

Migrate email for multiple users
  1. Complete the steps to set up the data migration service.
  2. Hover over Add Add and click Select multiple users Select multiple users.
  3. Click Attach file to upload a CSV file containing the legacy email addresses and the new G Suite email addresses. For details on how to format the file, see Use CSV files with the data migration service.
  4. Click Upload and start migration.
  5. If there are errors in your file, choose an option:
    • To update the file, click Cancel, fix the file, and reload the updated file.
    • To ignore the incorrect mappings, check the Ignore errors box.

Tip: To exit a completed migration, click Settings Settings > Exit migration

Migration tips

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