BackUp Gmail is the easiest way to backup your Gmail account and protect your data.

Features:
* Multiple accounts
* Very simple Restore procedure (with resume feature)
* You can access your data whenever you want: all emails are saved in plain text (.eml format with attachments)
* Install it and forget about it, is a lightweight Status Bar App that works in the background
* Personalize it: how the backup is performed, set-up your destination folders as you wish and decide if you want an hourly or daily backup of your account (and set the times yourself)
* Snapshots of folders (Gmail labels)

Compatibility: OS X 10.8 or later, 64-bit processor

More info - https://itunes.apple.com/us/app/backup-gmail/id492622242?mt=12