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Move mailboxes to Office 365

 

Applies to: Office 365 Deployment Guide for Enterprises

Topic Last Modified: 2013-10-17

Summary: Provides links to more information about performing a staged migration or cutover migration to Office 365 for Exchange Online.

In a staged Exchange migration, mailboxes in your on-premises Exchange organization are migrated to Exchange Online in batches. You can only use this migration type with Exchange 2007 or Exchange 2003.

In a cutover Exchange migration, all mailboxes in your on-premises Exchange organization are migrated to Exchange Online in a single migration batch. Global mail contacts and distribution groups are also migrated. Cutover migration only works if your on-premises Exchange organization has fewer than 2,000 mailboxes.

Use the links in the following sections for step-by-step guidance for your migration.

To configure your staged migration, start with the Step 2: Create a CSV file for a staged migration batch section in Migrate Mailboxes to Exchange Online with a Staged Migration.

To configure your cutover migration, start with the Step 2: Create a migration endpoint section in Migrate Mailboxes to Exchange Online with a Cutover Migration.

 
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