imapsync - Console-based utility for migrating IMAP mailboxes.
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Gmvault - Backup the emails in your Gmail account.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Cryoserver - Cryoserver is an all-in-one email archiving solution that empowers you to preserve your email in a tamper-evident archive, making you transform your data into a useful archive for everyday use.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.