In order to backup a Public Folder, the Admin account must have a mailbox license and needs to have read/write permissions for the Public Folder
This can be done as follows:
- From the Exchange Admin Center click on Public Folders.
- Select the Public Folder that you want to backup and click on '...' to select Root Permissions.
- Verify that the Admin account used for the CloudAlly backups has read/write access to the Public Folder. If not, click on the '+' to add the Admin Account.
To restore the data of a Public Folder, the restore process creates a sub-folder. The generated restore folder must be added as a new Public Folder in order to allow access to the restored data. Follow the normal Office 365 Exchange Online procedures to Create a Public Folder, using the CloudAlly restored subfolder as the path, as well as any additional sub-folders that are included in the restore.