MozBackup - Backup tool for Firefox and Thunderbird
MailStore - MailStore Home - A 100% free single-private-user desktop solution
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.
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.
MySQLDumper - MySQLDumper is a PHP and Perl based tool for backing up MySQL databases.
Hornetsecurity Email Archiving - Hornetsecurity Email Archiving is one of the advanced software that offers long-term, unchangeable, and secure storage of important company information, data, and flies.