It is assumed that you have created a Gmail backup to another cloud app as shown:

Here are short instructions on how to create restore of cloud app’s email backup to Gmail:

1. Start synchronization wizard to sync two cloud accounts
2. Click on cloud app where email was backed up, i.e. Google Drive, so click Google Drive icon
   
   
3. Select one of already configured Google Drive account or click on “Add Google Drive” to add new Google Drive account
   
   
4. If you click on “Add Google Drive” you will be forwarded to authorize cloudHQ to access account
   
   
5. Select where backup is in Google Drive and click “Next”
   
   
6. Select Google Drive folder where backup to be restored is located
   
   
7. Click on Gmail icon. The sync will automatically switch to one-way sync to restore email backup
   
   
8. Select one of already configured Gmail account where backup is to be restored into
   
   
9. If you click on “Add Gmail” you will be forwarded to authorize cloudHQ to access account
   
   
10. Choose options and synchronization starts automatically
    
    
11. Synchronization status will display after initial synchronization
12. Synchronization will start – Here is How to Monitor Status of Sync
13. An email will confirm success of initial synchronization