I use Thunderbird Mozilla as my e-mail box and I just started using a Maxtor One Touch 4 + as my back-up. There is only an option to back-up Outlook and Outlook Express. How can I back up Mozilla e-mail?
You may not have that option. You can manually copy the email folder. Find the Local Folder Path, by clicking on tools > account settings then Local Folders. On the right side of the window, you'll see the local directory location. Copy that folder, periodically.