MailStore - MailStore Home - A 100% free single-private-user desktop solution
HEY - Email at its best, new from Basecamp.
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.
InstAddr - Disposable email address application.
Intradyn Email Archiver - Orca Email Archiver provides email archiving solution for local government and business.
Horde - Horde Groupware is a free, enterprise ready, browser based collaboration suite.