Migrate mail from Google Accounts or IMAP

If you're migrating data from personal Gmail accounts (@gmail.com) or you're unable to authorize GWMME on the source domain (for example, you are not an administrator on the source account), follow the steps in Migrate mail from a Gmail account.

As an administrator, you can use Google Workspace Migration for Microsoft Exchange (GWMME) to migrate email data either from your old Google account or from an IMAP-based email account. You can migrate data from most RFC 3501-compliant IMAP servers.

Before you begin

• Migrating from Exchange Online (Microsoft 365)? Go to and follow the steps in Migrate data from Exchange instead.
• Check the system requirements—Make sure you meet the GWMME system requirements.
• Turn off folder-size limits and make labels available—Each user must turn off folder-size limits and make the All Mail, Spam, and Trash labels available to IMAP. Tell your users to follow the steps in Get email from another email app.

Step 1: Authorize GWMME

Before you can install GWMME, you must authorize GWMME on your source and target domains. For details, go to Authorize GWMME for your account.

Step 2: Create a CSV file of users

Create a control CSV file of the user accounts that you're migrating to make sure your source data correctly maps to your new user accounts. You don't need to add passwords to the file.

For details, go to Create CSV files for your migration.

Step 3: Download & install GWMME

Step 4: Configure GWMME

You can migrate data by running GWMME: 

• On a Microsoft Windows computer, using the GWMME interface—Follow the instructions below, in this section.
• From the command line (better suited to experienced administrators)—Go to Migrate data using the command line.

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Related topic

• GWMME Admin Guide