MailStore - MailStore Home - A 100% free single-private-user desktop solution
MozBackup - Backup tool for Firefox and Thunderbird
PST to Office 365 Wizard - Outlook PST to Office 365 files converter tool supports multiple formats conversion.
imapsync - Console-based utility for migrating IMAP mailboxes.
Mail Backup X - Your one stop mail backup and archiving tool for Mac.
Clumio - Clumio is first-in-class cloud backup optimization and visualization engine that provides a chance to top leading business organizations or enterprises to protect, delete and restore their precious data in no time.