IMAP to IMAP Migration

The need for IMAP to IMAP email migration continues to grow as organizations reorganize, merge, upgrade systems, or switch to new email service providers. This process enables the secure transfer of emails, folders, and attachments between IMAP servers while maintaining data integrity and reducing downtime. However, handling large mailboxes, preventing duplicate items, and maintaining seamless access throughout the migration can be challenging without a dependable solution.

EdbMails IMAP Migration Tool streamlines these challenges with secure, automated, and high-performance technology. It is fully compatible with leading IMAP servers such as Gmail, Outlook, Yahoo, Zoho, Zimbra, cPanel, Plesk, GoDaddy, Rackspace, AWS WorkMail, Bluehost, and DreamHost, delivering smooth and reliable mailbox transfers across platforms.

With its incremental migration feature, EdbMails intelligently prevents duplicate emails even during repeated transfers, ensuring accuracy and consistency. The software also supports concurrent mailbox migration, enabling multiple accounts to be migrated simultaneously for faster completion and improved performance.

EdbMails also provides zero downtime by running migrations in the background while users continue accessing their mailboxes without any disruption. Combined with advanced filtering options and an intuitive interface, it offers a smooth, error-free, and efficient IMAP to IMAP migration experience for businesses of all sizes.

1. IMAP to IMAP Migration Plan

   Planning is one of the most important steps before you begin migrating your IMAP data to IMAP. Here is a brief checklist of points to consider before you migrate.

   1. Clean up the source by deleting unused mailboxes and removing duplicate email files.
   2. Make an inventory of items before you make the move such as
      • User accounts, email addresses and passwords.
      • The source and target server details, browser and operating systems used.
      • Network settings, DNS configurations, MX records, firewall settings.
      • Licensing plans on your current source IMAP server.
   3. Determine the size and number of mailboxes you want to migrate.
   4. Create appropriate user mailboxes on the target server.
   5. Ensure you have enough network capacity and bandwidth to migrate.
   6. Communicate the migration plan and changes to your end users and stakeholders.
   7. Perform a test migration before you start the actual one.
   8. Start the actual migration, verify the endpoints and update the MX records.
   9. Check for correct mail flow.

2. IMAP to IMAP Pre-migration Activities

   • Obtain your IMAP server hostname, port number, email address, and password.
   • If you plan to migrate multiple users download the sample CSV file from the EdbMails application and enter the details of each users mailboxes you want to migrate
   • If you want to connect to Gmail, make sure to create an app password and use it in place of your regular password.

      See how to find your IMAP server name

3. Step-by-Step Guide for IMAP to IMAP Migration

   • Step 1: Download and install EdbMails IMAP migration tool

     • Download and install EdbMails on your computer.

         See EdbMails system requirements for IMAP to IMAP migration

       

     • Start the EdbMails application on your computer.
     • Enter your registered email address and password, then click ‘Login’. If you do not have an account, click ‘Start Your Free Trial’ to use the trial version.
         Note: The Free Trial lets you access all key features and export up to 30 items per folder. To remove this limitation and export unlimited items, purchase a valid license from the EdbMails website.

        Click here to purchase the license from the EdbMails website.

       After purchasing, restart the application and sign in again with the same email address and password used during the purchase to activate your license.

       

     • Select the ‘IMAP (Gmail, Outlook & more) Migration’

       

     • Select ‘IMAP to IMAP Migration’.

       

     • You may move forward with the preassigned default job name, or click on ‘New Job’ to change the name as per your preference before proceeding further.

       

   • Step 2: Connect to the Source IMAP Server

     • To migrate a single account, select ‘Single User / Account Migration’, choose the required option such as ‘Connect to IMAP Server’ or ‘Connect to POP3 Server’, and click ‘Next’ to proceed to the next step.

       

     • Choose the correct IMAP host name from the list or enter it manually, then enter your email address and password. When connecting to a Gmail account, generate an app password and use it in place of your regular password to complete the connection.
     • Click the ‘Login’ button.

       

     • For migrating multiple mailboxes, choose ‘Multiple (bulk) Users/Accounts Migration’, then select the appropriate option such as ‘Connect to IMAP Server’ or ‘Connect to POP3 Server’, and then click ‘Next’.

       

     • Click ‘IMAP Migration CSV File’ for downloading the ‘Sample.CSV’ file.

       

     • Edit the CSV file by entering the required details such as the email address, password, host name, and port number, then save the file after updating the information.

       

     • Close the CSV file, then click the ‘Load Modified CSV File’ button and choose the updated CSV file to proceed.
     • Verify the mailboxes, and click 'Next'.

       

   • Step 3: Select the Source IMAP Server Mailboxes

     • Select the mailboxes or particular folders you want to migrate and once your selection is complete, click ‘Next’ to continue.

       

   • Step 4: Connect to the Target IMAP Server
     • To connect an individual user account, select ‘Single User / Account Migration’. Next, choose the appropriate protocol such as ‘Connect to IMAP Server’ or ‘Connect to POP3 Server’, then click ‘Next’ to continue.

       

     • For a single-user login, choose the correct IMAP hostname from the list or enter it manually, then enter the email address and password. If you are connecting to a Gmail account, generate an app password and use it in place of your regular account password.
     • Click the ‘Login’ button.

       

     • For enabling the migration of multiple IMAP accounts simultaneously, select ‘Multiple (bulk) Users/Accounts Migration’ and click ‘Next’.

       

     • Click ‘IMAP Migration CSV File’ to download the ‘Sample.CSV’ file.

       

     • Modify the CSV file with the required details such as email address, password, host name and port number in the CSV file and save the changes.

       

     • Close the CSV file, click the 'Load Modified CSV File' button, select the modified CSV file .
     • Verify the mailboxes, and click 'Next'.

       

        Refer to the EdbMails detailed steps on connecting to single and multiple users during IMAP migration.

   • Step 5: Map source and target mailboxes
     • Choose the required mailbox mapping option.

       

     • EdbMails automatically maps the source and target IMAP mailboxes.
     • You can also manually map the mailboxes

       

   • Step 6: Start Office 365 to IMAP migration operation
     • Verify both the source and target mailboxes before completing the mapping process.
     • Click the ‘Settings’ button to apply the filters. For example, you can set a date filter to migrate only the data within a certain date range.
     • Click the ‘Start Migration’ button and initiate the migration process.

       

     • Click the ‘View Log’ button to access the migration report, which includes a mailbox migration status, errors, and a summary of migrated items, including the total number of items exported and ensuring clear tracking and evaluation of the process.

       

     • Also, log in to your target server and verify the migrated items.

4. IMAP to IMAP Post-migration Activities

   Once the migration is completed, update your MX records to route email traffic to the new server.

5. IMAP to IMAP migration troubleshooting:

    For troubleshooting, visit Knowledge Base articles.

    For more queries, check Frequently Asked Questions or contact support.

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Additional resources:

• IceWarp to Office 365 migration
• Zimbra to Office 365 migration
• AOL Emails to Office 365 migration
• Zoho Mail to Office 365 migration
• GoDaddy to Microsoft 365 migration
• ProtonMail to Office 365 migration