Can I use this app to back up messages to Gmail?

This app can be set up to send the xml backup files via email. It does not store individual messages as separate emails in Gmail.

The email option does not appear during the initial setup process as we do not recommend using it due to the attachment size restrictions in most email services.

If you wish to set up email as a backup destination, you can set it up from Menu > Settings > Backup Settings > Email Settings.