As seen in the Params guide in the Custom Folder Section
Custom folder mapping
MNE's Data Migration Wizard and SSDM support the migration of Notes custom folders to renamed target folders
within one or more designated parent folders in Outlook. Custom naming of custom folders is accomplished by
adding one or more custom-folder parameters to the language section of MNE Global Defaults, Task Parameters
and/or notesdtapp.ini.
The key-name portion of a custom-folder parameter must begin with the Outlook target folder name (as
specified by the [Notes] UserFolderPrefix value), followed by a backslash, and then the name of the custom
folder in the Notes source. The key name is followed by the "=" symbol and then the parameter value: the path
you want MNE to assign to the target custom folder in Outlook. For example:
[Notes]
UserFolderPrefix=Folders
[EN]
Folders\NotesName=Folders\OutlookName
... tells MNE to create a new Outlook folder named OutlookName within the Folders parent folder, and then
migrate the contents of the Notes folder NotesName to the new folder.
These custom-folder parameters can be used to override the UserFolderPrefix if the designated parent folder is
different from the folder specified for the UserFolderPrefix. For example:
[Notes]
UserFolderPrefix=MyFolders
[EN]
MyFolders\NotesName=OtherFolders\OutlookName
If the parent folder is omitted from the parameter value (to the right of "="), the new folder is created at the
same level as the Inbox.
If the parent folder is omitted in a custom-folder parameter key name (to the left of "="), MNE creates the
target Outlook folder as a subfolder directly under the UserFolderPrefix folder, rather than in any alternate
target folder that may be specified in the parameter value. For example, if:
[Notes]
UserFolderPrefix=MyFolders
[EN]
NotesName=OtherFolders\OutlookName
… then the target folder in Outlook would be MyFolders\OutlookName.