MailStore - MailStore Home - A 100% free single-private-user desktop solution
Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.
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.
MailClark - The Slack bot for external communications
Intradyn Email Archiver - Orca Email Archiver provides email archiving solution for local government and business.
Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates