Follow All the Steps to Migrate from IMAP to another IMAP by using SysTools IMAP Migration Tool
Pre-Requisites
Download and Launch the IMAP to IMAP Migration Tool.
In case, tool is not activated, see how to activate the product: Activation Steps
Tool provides the help section for the details about each migration mode. Click on "Help" button to view this section.
On the main screen, select the Source and Destination options. Then mark the box next to the Email workload.
Mark the Date Filter option to apply a start and end date for the migration. By default, the start date would be 01-01-1990 (1st January 1990); change it using the calendar selection menu.
Once setup is complete, press the Next button at the bottom right corner.
On the Source Screen, select the IMAP Server type from where the source data will come from.
Expand the tab to see the list of the most popular personal email providers and select any one out of (Gmail, Yahoo, iCloud Mail, Zoho Mail) or Others in case the name is not on the list.
The tool will fetch the IMAP Server URL in the case of named options (Gmail, Yahoo, iCloud Mail, Zoho Mail); for others, put in the IMAP Server URL and Port ID yourself. Then press Validate.
After successful permission validation, press the Next button at the bottom right corner.
The Destination IMAP screen is the same as the source one. Expand the dropdown menu.
Select any one option Out of Gmail, Yahoo, iCloud Mail, Zoho Mail, or Others. Like in the Source, here too the tool fetches the IMAP Server details for all except the Others option.
Fill/Verify the server details and press Validate.
Once validation is done, press the Next button at the bottom right corner.
Click on Download Template and Save the resultant CSV file.
Open the CSV on a spreadsheet editor like Excel.
Replace the placeholder text with the equivalent data. Do not alter the header row.
Add as many emails as your license quota allows. Here, the source password is not the account password but the app password (automatically generated password received via the IMAP server settings)
Save the CSV.
Go back to the tool and click on Import Users.
Click on the User List CSV file to add the edited data.
Browse for the CSV template constructed previously and click on Open.
Once you see the file name on the bar, press Upload.
Verify the user upload count with the alert message and click OK to close it.
All the users that were there on the CSV are now visible in the tool.
Mark the checkbox next to users, Apply priority via a star mark to migrate some users ahead of others. Toggle the Show selected switch to hide the non-selected members from view. Then tap on Validate.
After the Validation process completes, an alert popup with the user count; click on OK to close it.
See the Source Permission and Destination Permission columns; the green icons indicate that the account is ready for migration.
Click on the Start Migration button.
View the license consumption alert and hit Start.
A migration Started successfully pop-up appears on the screen; click on OK to close it.
The Migration screen contains 3 different tabs to indicate the current status of an account.
The In Progress tab contains all those accounts that are being migrated in real-time. An ongoing migration is represented by a circular rotating animation at the top right corner. The Email column updates in real-time, showing how many emails have moved with the total volume of the transfer done.
The Pending tab has the list of all accounts about to be migrated.
Once all the data from the source IMAP moves to the destination, it appears inside the Completed tab. When all accounts from the current migration batch are Completed, the circular rotating animation stops and post-migration options unlock.
The total Email count and volume of data sent are visible under the Email column, and the Status column shows a green tick.
There is an option to end an ongoing migration midway via the Stop migration button. Click on the Stop migration button at the top right corner. Then, verify the stoppage by pressing Yes on the pop-up alert.
The tool gives out an alert that the migration has been stopped successfully. Click OK.
The completed tab is a bit different in the case of a stopped migration; the Status column has a red circle with a square inside of it.
Retry Failed Items only contain the emails that had some issues in bringing all the email data successfully. Select the account and press Start.
Re-Run Full Migration is useful in cases where no items were able to cross from source to destination during the first run.
The delta migration feature is to be used to bring all those emails that came in after the previous IMAP to IMAP migration cycle began.
This tool gives 2 distinct reporting options. Expand the Download Report tab to get either the Migration summary report or the Detailed report.
Click on Migration Summary Report and Save the CSV file.
View the CSV on any spreadsheet program. The summary report consists of a list of all sources and their corresponding destination IMAP accounts part of the migration.
Along with the activation status, Successful/Unsuccessful email count, Status, Total size of the transfer, and the Start/End Time stamp.
Go back to the Migration status page and this time select Detailed Report.
Select the accounts for which the Detailed report is required and press Download.
After the report gets generated, a popup will appear; click Download to get the report.
Save the zipped file at an appropriate location.
Uncompress the data; the report is inside a folder with the same name as the source account's IMAP email address.
Extract and open the CSV on a spreadsheet to see the contents. The destination report lists messages migrated from the source to the destination: its ID, Status, Name, Folder Name, Error value, and Size.
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