Methods to Migrate to Office 365 from Exchange 2013:
Cutover migration.
Hybrid migration.
Staged migration.
IMAP migration.
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Now, we will discuss the migration methods sequentially and Migrate Exchange mailboxes to Microsoft 365.
Cutover Migration from Exchange Server 2013 to Office 365
This manual method allows the migration of fewer than 2000 mailboxes. Small organizations follow the Cutover migration. After exceeding the limit, it takes much time and makes the processing slow. Hence, it fails to migrate into Office 365.
Create a Migration batch online
- In Exchange Admin Center, Navigate Recipient > Migration. Define migration endpoint, pick Outlook everywhere.
- From the drag-down menu, select Migrate to Exchange Online.
- Activate mailboxes and finalize the migration batch.
- Complete office 365 setup and Cut-over DNS.
- Change the Active directory and update DNS records.
- Create a new outlook profile, Import data, and settings.
- Re-configure mobile devices.
Exchange Server 2013 to Microsoft 365: Hybrid Migration Step by Step
Hybrid migration maintains both online premises and online mailboxes. In this method, there is no need to create a new mailbox and import information. The users can transfer the existing mailbox between the exchange server and exchange online. It is considered a smooth process, but if the user skips any of the steps, it fails. The approach mentioned above is very time-consuming.
Before performing the Migration, you need to ensure your Exchange server 2013 is updated with the latest patch. You also need to set up directory synchronization using Azure Active directory connect.
Step1: Verify Yourself and Your Domain in Microsoft 365
Step2: Start the Migration Process.
Step3: Sync Your Directories to Create Users.
Step4: Assign Microsoft 365 Licenses to Your Users.
Step5: Start Migrating User Data.
Staged migration
Another manual method, Staged migration, allows the migration of numerous mailboxes, i.e., greater than 2000. It maintains both online premises and online mailboxes. It is one of the most suited options for both medium and large-size organizations. A Staged migration only works with exchange 2003 and exchange 2007. If you have an Exchange Server 2003 or 2007, then Staged migration is the optimum solution. The Staged migration takes several days to complete the task. It depends upon the volume of content and the mailbox number.
IMAP migration
Internet Message Access Protocol (IMAP) fails to migrate anything other than email and message. IMAP migration is a long and slow process compared to other methods mentioned in this article. It can only migrate emails that are up to 35 MB in size and 500,000 items per mailbox. The IMAP method is preferable to migrate from the non-exchange server platform to Office 365. The only drawback of this method is, it can only migrate inbox items or email folders. It fails to migrate contacts, calendars, etc.
To know more about Email Migration Office 365 or O365 Email Backup, visit O365CloudExperts.