Archive Mailbox to Microsoft 365 Migration

• Step 1: Set the impersonation role on the source to the admin user

  Ensure that you set the ApplicationImpersonation permissions to the admin account on the source Exchange server.

• Step 2: Create mailboxes on the target Office 365 server

  Before you migrate to Office 365, ensure that you create mailboxes for users in your organization and assign suitable licenses to them.

  • Add users and assign licenses to Office 365 users
  • Assign Microsoft 365 licenses to user accounts
• Step 3: Enable the archive mailbox in Microsoft 365

  After you have created and assigned a license to a user mailbox, you must enable the archive mailbox in Office 365.

• Step 4: Set impersonation role to the admin user on the target

  Ensure that you have set the impersonation rights to the admin account on the target Office 365 server.

There are two methods to migrate large archive mailboxes to Microsoft 365 by using EdbMails

1. Direct migration of Archive mailboxes to Office 365
2. Import mailboxes by using the PST to Office 365 migration

Once you have completed the necessary pre-migration tasks, utilize the EdbMails Exchange migration tool for Exchange 2010 to Office 365 migration.

• Step 1: Download and install EdbMails Exchange migration software

  • Download and install the EdbMails application on any computer that is connected to the source and target environment.
  • Launch the EdbMails application on your computer.
  • Enter your registered email ID and password, then click ‘Login’. If you are using EdbMails for the first time, select ‘Start Your Free Trial’ to continue with the trial version.
     Note: The trial version includes all important features and allows migration of up to 30 items per folder. To perform unlimited migration, purchase an Exchange Migration license from the EdbMails website.

     Click here to view Exchange Migration pricing details.

    Once the purchase is completed, close the application and open it again. Then log in using the same email ID and password used during the purchase to activate your license.
  • Select the migration method as ‘Live Exchange Migration’.

    

    Refer to the link for a detailed list of EdbMails system requirements for Exchange migration.

     Note: If the Standard folders (such as Inbox, Calendar, Contacts) on your source Exchange server mailboxes are initialized with a different language, follow the below details to migrate these folders to the respective system folders on the target (destination) server.

    For Instance: If your source Inbox folder is named 'Boîte de réception', which is in French language and you migrate this folder directly to the destination server, then by default it will not be mapped to the 'Inbox' folder on the target server. In order to map the folder with the french name to the respective folder, change the regional settings on the target server to match that of your source mailbox folder language (in this case, it is French).

     Click here to know the steps to change the language and regional settings on Exchange server

• Step 2: Connect to the Exchange server as Global Admin

  • Click the ‘Add New Connection’ button to set up a new connection with the source Exchange server.
  • If you’ve already configured a connection earlier, simply choose it from the list and click ‘Connect to Existing’ to continue.

    

     Refer to the link for instructions on how to use the different Exchange server connection methods supported by EdbMails.

  • Select the ‘Connect to Archive Mailboxes (In-place Archive)’ option for archive migration and click ‘Next’ to proceed.

    

     See the steps to connect to archive mailboxes from EdbMails.

  • Enter the source server details and click the ‘Login’ button

    

  • Select one of the methods to load the mailboxes.

    

• Step 3: Select the mailboxes and connect to Office 365

  • Select the archive mailboxes from the Exchange that you wish to migrate to Office 365.
  • Click ‘Next’ to set up the connection with the target server.

    

  • If this is the first time you’re migrating with EdbMails, the migration is a full migration. On subsequent migrations from the same source to the target, the migration is incremental.

• Step 4: Customize the Exchange to Office 365 migration operation

  EdbMails provides the following additional options to help you customize the migration task.

  • Additional Include and Exclude Filter Options
  • Filter emails by Date: Migrate to Exchange 2019 by applying the Date filter
  • Filter emails by Size: Exclude emails from migration larger than a specified size.

• Step 5: Connect to target Office 365 as Global Admin User

  • Click ‘Add New Connection’ to link to the target Office 365. For a previously used connection, select it from the list and click ‘Connect to Existing’ to continue.

      Connect to Office 365 server using secure modern authentication

    

  • Select the ‘Connect to Archive Mailboxes (In-Place Archive)’ option, and click the ‘Next’ button.

    

  • Choose the required registration method and click the ‘Login’ button.

    

  • Authenticate on Microsoft sign-in page.
  • After successfully connecting to your target Office 365 server, choose one of the options to load the mailboxes.

    

• Step 6: Map the mailboxes between the source and the target

  • Choose the required mailbox mapping option.

    

  • The mapping activity in EdbMails can automatically match and map the mailboxes and folders between the Exchange server and Office 365. This activity saves time when you’re migrating a large number of mailboxes.

    

• Step 7: Start the migration to Office 365

  • Click the 'Start Migration’ button to initiate the migration process.

    

  • You can monitor the progress through the status bar in real-time. Once the migration is complete, EdbMails will prompt you to review the results. Click ‘View Logs’ to access detailed reports of the operation. Finally, sign in to the target server to verify that all items have been successfully migrated.

    

EdbMails can also assist you in migrating to Office 365, if you have the archive mailboxes exported as PST files from your on-premises Exchange server, Download and run EdbMails if it hasn't already been installed on your system. The following steps outline how to migrate PST files from Exchange to Office 365.

 See the Archive migration troubleshooting guide for possible solutions related to migration errors. For more information on EdbMails Exchange migration refer to the frequently asked questions (FAQs)