About G Suite Migration for Microsoft Outlook

Also known as GSMMO

GSMMO used to be know as Google Apps Migration for Microsoft Outlook (GAMMO). 

G Suite Migration for Microsoft® Outlook (GSMMO) is a desktop utility that lets Microsoft Outlook users import existing mail, personal contacts, and calendar events from a Microsoft Exchange account or PST file into any G Suite account. You can configure and run your migration by stepping through an easy-to-follow wizard. You can also run the utility as a command line tool.

With GSMMO, you can:

  • Import mail, calendars, and personal contacts, either all at once or in separate stages
  • Import only mail sent before or after a specific date
  • Skip importing junk email and deleted items
  • Exclude specific mail folders from being imported (requires running the command-line utility)
  • Monitor the progress of your migration
  • Easily pause and resume the migration
  • Run subsequent migrations that import only new data (not data that's already been imported)

Note: GSMMO imports only your personal contacts, not your organization's Global Address List. Global addresses are instead imported by your domain administrator using a utility such as Google Cloud Directory Sync.

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