Proofpoint - Proofpoint provides cloud-based email security, e-discovery and compliance solutions for companies to protect sensitive business data.

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.

Hornetsecurity - Hornetsecurity offers you comprehensive, integrated managed e-mail security services.

MailStore - MailStore Home - A 100% free single-private-user desktop solution

Symantec Email Security.cloud - Symantec Email Security.cloud provides always-on, inbound and outbound email security against malware, targeted attacks, and advanced threats

Intradyn Email Archiver - Orca Email Archiver provides email archiving solution for local government and business.