User Defined Mailbox and Folder Mapping for Office 365 Migration
EdbMails User Defined Mapping lets administrators explicitly pair source Office 365 mailboxes and folders with the target mailboxes and folders they want to use during migration. This focused capability supports the broader Office 365 migration software workflow when explicit source-to-target mapping is required.
By default, EdbMails uses one-to-one mapping when source mailboxes and folders correspond to their intended target locations. Use User Defined Mapping when you need to explicitly specify a different target mailbox, folder name, or folder path. The custom mapping is supplied through the CSV workflow described below.
Advantages of user-defined mapping
- Migrate to any location on your target server
For Instance, if the source folder path is ‘user1@source.com/Inbox’ and you want to map it to a different path on the target, such as ‘user2@target.com/custom’, user-defined mapping allows you to migrate ‘Inbox’ folder items from source mailbox to the ‘Custom’ folder on the target server.
- Migrate to the target server with multilingual support
For instance, if you want to migrate data from the 'Inbox' folder (English) in the source mailbox to the 'Boîte de réception' folder (French) in the target mailbox, the user-defined mapping feature helps to map the source and target folders easily.
How to set up User Defined Folder Mapping
To set up User Defined Mapping, create a CSV file containing the source mailboxes and folder paths and their corresponding target mailboxes and folder paths. Save the CSV file and load it into the EdbMails application for mapping. Before proceeding, review your migration preparation with the Office 365 migration checklist.
Follow these steps to load the source and target mailbox mapping using a CSV file.
- Download and install the EdbMails application.
- Log in to the application with the appropriate details or click the ‘Start Your Free Trial’ button.
- Select the ‘Office 365 Migration’ option from the list of products
- Connect to the source Office 365 server and select the option to load mailboxes.
- Select the mailboxes and click the ‘Next’ button to continue.
- Connect to the target Office 365 server and select the option to load mailboxes.
- In the mapping window, select ‘Load Source and Target mailbox mapping using CSV file’ and click the ‘Continue’ button.
- Click the ‘Download Sample CSV File’ button.
- Select a location to store the CSV file on your computer.
- Open the CSV file and edit the source and target mailbox mapping details. You can also specify the required folder to be mapped in the CSV file. After completing the updates, save the CSV file.
- Browse and upload the CSV file in the EdbMails application.
- Verify the configured source and target mapping details before proceeding. After verification, continue with the Office 365 migration guide.
Understanding the CSV File Structure
The sample CSV downloaded in Step 8 provides the exact template EdbMails expects. The mapping file uses two columns: Source Mailboxes and Target Mailboxes. Each row defines one mapping, and the format works at three levels depending on what's being mapped:
| Mapping Type | Source Mailboxes | Target Mailboxes | What it does |
| Mailbox-level | SourceUser1@domain.com | TargetUser1@domain.com | Maps an entire source mailbox to a target mailbox, no folder specified |
| Folder-level | SourceUser2@domain.com\Inbox | TargetUser2@domain.com\Boîte de réception | Maps a specific folder to a differently named or located folder on the target |
