MailStore - MailStore Home - A 100% free single-private-user desktop solution
Carbonite - Unlimited online backup for one flat fee. Free trial, no credit card required.
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.
MigrateCloudData Office 365 Migration Tool - Office 365 Migration Tool is the most trusted software to migrate Office 365 data into another O365 and many other email clients.
Intradyn Email Archiver - Orca Email Archiver provides email archiving solution for local government and business.
PieSync - Seamless two-way sync between your CRM, marketing apps and Google in no time