Office 365 Small Businesses organizations

If you're an Office 365 Small Business admin, we recommend that you have each of your users migrate their own email from their Gmail account to their Office 365 account using the Outlook Web App Connected Accounts feature. For information, see Connected Accounts.

Your users can also import their Gmail contacts into their accounts using the Outlook Web App Import Contacts feature. Fore information, see Import contacts into Outlook Web App        

Office 365 Midsize and Enterprise organizations

If you're an Office 365 Midsize or Enterprise admin, see Migrate from Gmail to Office 365 in 7 steps.

For additional information about IMAP email migration, see the TechNet article Mailbox Migration to Exchange Online. 

Important    More complex user identity and document management migrations may require the help of 3rd party migration companies. Here are a few: 

  • Binary Tree   Provider of cross-platform messaging migration and coexistence software with products that provide for the analysis of, and the coexistence and migration between, on-premise and online enterprise messaging and collaboration environments based on IBM Lotus Notes and Domino, and Microsoft Exchange and Microsoft SharePoint.
  • BitTitan   Provider of self-service e-mail migration and coexistence solutions to Exchange 2007 and Exchange Online.
  • Cemaphore   Provider of migration solutions from on-premises Microsoft Exchange to Microsoft Online.
  • Quest   Provider of migration solutions for Exchange Online and SharePoint Online, including migrations from Lotus Notes and Novell GroupWise to Exchange Online.
  • Metalogix   Provider of migration solutions to Exchange Online and SharePoint Online.