The best email encryption products: A comprehensive buyer's guide

Editor's note

Securing email is a critical part of enterprise security. Email encryption software ensures the confidentiality and integrity of email messages over a network. These messages are not traditionally protected by network security measures such as SSL/TLS, and the risk of interception exists even between users within the same organization.

Due to the cost of deployment, email encryption products are mostly used by organizations that host their own email services -- businesses that outsource their email such as SMBs are probably better off contacting their email service provider. For larger enterprises, however, dedicated email encryption software requires less money and training than implementing alternatives like a public key infrastructure.

This buyer's guide takes a look at the evolution of email encryption software, and explores the best use cases for its implementation. It also discusses critical purchasing criteria and provides a comparison of the best email encryption products on the market.