MailStore - MailStore Home - A 100% free single-private-user desktop solution
MigrationWiz - MigrationWiz provides on-demand mailbox migration services through a fully automated cloud-based...
imapsync - Console-based utility for migrating IMAP mailboxes.
Shoviv GroupWise to Office 365 - Shoviv presents the best GroupWise to Office 365 migration tool, helps to migrate from GroupWise to Office 365, Outlook PST, EML, MSG & many more.
MozBackup - Backup tool for Firefox and Thunderbird
Gmvault - Backup the emails in your Gmail account.