Thexyz - Secure premium email service with mobile sync apps for calendar, contacts, tasks, notes and FISMA compliant email archiving.
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.
ZixArchive - ZixArchive is a cloud-based solution to collect, store and search archived emails.
Intradyn Email Archiver - Orca Email Archiver provides email archiving solution for local government and business.
Archive2Azure - Archive360's email archive solution retains your data in your own cloud tenant. Say NO to proprietary email archive software that own your encryption keys.
MailStore - MailStore Home - A 100% free single-private-user desktop solution