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Restore multiple PST files to Office 365

Importing PST files into Office 365 is essential for consolidating data, migrating old email archives, and integrating personal or legacy PST files into a unified Office 365 environment. This process is also beneficial for combining data from former employees, organizing scattered data sources, and ensuring compliance with data retention policies. Centralizing all important information in Office 365 makes it easier to search and access, enhancing overall data management.

EdbMails Office 365 migration software makes it straightforward to import multiple PST files into Office 365. Its user-friendly interface simplifies the migration process, allowing users to manage import operations with minimal technical knowledge. The software automatically maps mailboxes from PST files to the correct Office 365 mailboxes, reducing the need for manual efforts. Users can view and select target Office 365 folder listings to ensure data is placed accurately and the original email structure is preserved.

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The software maintains data integrity throughout the import operation, ensuring that all the items emails, attachments, contacts, and calendar items remain intact. The migration reports provide transparency into the import process, allowing users to monitor progress, address any issues, and confirm that the migration is completed successfully.

EdbMails handles various import scenarios, including the simultaneous migration of multiple PST files and efficient management of large data volumes. This flexibility ensures a tailored migration experience, making the transition to Office 365 smooth and reliable. The below sections detail Prerequisites, steps to import multiple PST files using EdbMails.

Prerequisites to import bulk PST files to Office 365
1. To migrate PST files to Office 365, ensure that Microsoft Outlook is installed on the computer where you are performing the import operation and that an Outlook profile is configured.
2. EdbMails automatically creates Office 365 mailboxes and assigns licenses on target servers. However, if you want to manually create mailboxes for your organization's users and assign the appropriate licenses to them navigate through the below links
3. Explore the different Office 365 licensing plans to find one that best suits your needs. You can start with a 30-day free trial and later choose a plan that aligns with your requirements. Utilize available resources to compare various Office 365 business and enterprise plans before making a decision. Compare Office 365 business plans and compare Office 365 enterprise plans.
4. If you intend to migrate PST files to public folders on Office 365, ensure that you create and configure the corresponding public folders on the target server.
5. To connect to In-Place Archives on the target server, ensure that the archive mailbox is enabled. See the steps for enabling online Archive in Office 365.
6. Use a global administrator account with a mailbox for Automatic Registration of EdbMails on Entra ID (Azure Active Directory).
7. Configure Office 365 to send and receive large messages.
  Follow the steps to increase the message size on Office 365 to 150MB.
Steps to import multiple PST files to Office 365 using EdbMails
1. Step 1: Download and install EdbMails software
  - Download and install EdbMails application
    
    See EdbMails system requirements to import multiple PST files to Office 365.
2. Step 2: Launch EdbMails Software
  - Launch the application and click 'Start Your Free Trial' button or enter the account details and click 'Login' button
3. Step 3: Select Office 365 migration operation
  - Select the 'Office 365 Migration' option from the dropdown list and click 'Let’s Go!' to proceed
4. Step 4: Add multiple PST files
  - Close the ‘Connect to Office 365 (Source) window’ and click the ‘PST to Office 365’ button located at the bottom of the main migration window.
  - Click the 'Add file(s)' button
  - Select the multiple PST files from your computer drive
  - Verify the selected PST files. Click the ‘Continue’ button to proceed
  - To create a folder in the target mailbox with a name that matches the source PST file refer to the below screenshot.
5. Step 5 : Connect to Office 365 server
  - In the ‘Connect to Office 365 (Source)’ window, select the required method for the secure OAuth based modern authentication. The default ‘Auto Registration’ method requires Global admin access. You can use either a Global admin account or any user account with full access rights in the Manual Registration method.
  - Select the required connection method
  - Authenticate on the Microsoft sign-in page with the global admin account having a mailbox.
  - Accept the required permissions for the application to execute the migration operation.
  - If you have already established an Office 365 connection with EdbMails, the mailboxes list will be saved. You can use the same list. If you are establishing a new connection, click the ‘No’ button to get the mailbox loading options.
  - EdbMails Automatically loads mailboxes from your source Office 365 server. If you are unable to list the required mailboxes using the automatic mailbox loading option you can use the CSV file to load the mailboxes. You can also choose the option to load the mailboxes from a previously stored list.
6. Step 6: Map source and target mailboxes
  - Select the required option for mapping. EdbMails automatically maps mailboxes and folders between source and target tenants, which is particularly beneficial for large-scale migrations. Alternatively, you have the flexibility to manually map source folders and subfolders to specific target locations as needed.
7. Step 7: Start PST to Office 365 migration
  - After completing the mailbox mapping, click the ‘Continue’ button and enter the job name
  - Upon migration completion, a message will appear. You can click the ‘View Log’ button and check the migration report.