Step by Step Exchange On-premise migration to Office 365
We are going to elaborate on the hybrid method of Exchange Server Migration. It is a preferred method of migration since it moves a large number of mailboxes in batches.
Enable-Mailbox replication proxy service on client access servers:
Before Exchange server migration to Office 365, one has to make migration endpoints. The migration endpoint has all the necessary information. It carries login credentials and connection settings of the source Exchange Server. Then, steps are undertaken to enable the Mailbox Replication Proxy Service (MRSProxy Service).
Go to Exchange Admin Center to servers> Virtual Directories.
Then choose the Client Access Server, select the ESW virtual directory, and click Edit.
At last, enable MRSProxy (by checking the checkbox) and click Save. Your first step to Exchange Server Migration is complete.
Migrate Exchange 2013 Mailboxes to Exchange Online:
You get the option of move migration wizard in the Office 365 tab of the Exchange Admin Center. It helps to move mailboxes from on-premise Exchange to Exchange Online (vice versa too).
Follow these steps to migrate on-premises Exchange mailboxes to Office 365-
Go to Office 365 in EAC
Click Add and choose to Migrate to Exchange Online under Recipients>Migration.
On the, select a migration type page, select Remote move migration, then click next. It will take you to Select the Users page.
Then click Add. Here you get the option to select on-premises Exchange users in case you want to migrate to Office 365. Then you have to click Add, then Ok, then Next.
Then put the credentials of the on-premises administrator. Enter the Windows user account credential page.
Make sure that your on-premises Exchange Server (FDQN) is there on the “Confirm the Migration” endpoint page. Then, click next.
In the Move configuration page, create a migration batch. You can do this by providing the required details. Then, click Next at the end.
Finally, at the Start the batch page, choose one recipient to receive the report. After batch completion, check the automatically complete the migration batch Box. Click New.
I hope this method will be helpful! Mark Wilson