Transferring Zimbra to Exchange Server involves migrating mailboxes, contacts, calendars, and other data from Zimbra to Exchange. Here's a general overview of the steps involved in the migration process:
Prepare the Exchange Server: Ensure that your Exchange Server environment is properly set up and meets the requirements for the migration. This includes installing and configuring the Exchange Server, setting up mail flow, and establishing connectivity.
Export Zimbra Mailboxes: Export the Zimbra mailboxes to a suitable file format for migration. Zimbra provides options to export mailboxes to formats like PST (for individual mailboxes) or TGZ (for multiple mailboxes).
Convert Zimbra Data to Exchange-Compatible Format: If you have exported Zimbra mailboxes to the TGZ format, you'll need to convert them to a format compatible with Exchange, such as PST. There are third-party tools available that can assist with the conversion process.
Set Up User Accounts in Exchange: Create user accounts in the Exchange Server corresponding to the Zimbra mailboxes being migrated. Ensure that the necessary permissions and settings are applied to the user accounts.
Import Mailboxes to Exchange: Import the converted mailbox data (PST files) into the corresponding user accounts in Exchange. This can be done using tools like the Exchange Management Shell or the Exchange Admin Center.
Migrate Contacts, Calendars, and Other Data: In addition to mailboxes, you'll need to migrate other data like contacts, calendars, and tasks. This can be done using various methods, such as exporting and importing CSV files or using third-party migration tools that support Zimbra to Exchange migration.
Update DNS and Configure Mail Routing: Update your DNS records to point the email traffic to the new Exchange Server. Configure mail routing settings to ensure that incoming and outgoing emails are correctly routed between Zimbra and Exchange during the transition phase.
Test and Verify Migration: Once the migration is complete, thoroughly test and verify the migrated data in Exchange. Confirm that all mailboxes, contacts, calendars, and other data have been successfully transferred and are accessible to users.
Decommission Zimbra: After ensuring the successful migration and verification of data in Exchange, you can decommission the Zimbra server and discontinue its usage.