Enterprise email encryption solutions
Enterprise level email encryption solutions are often based on email systems like Office365, G Suite, Microsoft Exchange. Encryption systems built on top of enterprise email systems require a well-managed implementation process.
Secure and stable as products
Secures both email client and data traffic
Expensive to deploy
Requires centralized device management
Slow purchasing process and implementation
Do-it-yourself solutions
Another option is to configure your email client to do message encryption automatically using client embedded encryption functionality or use add-ons that typically cost $10-$20/user/month.
Secure if deployed and used properly
Difficult
Maintenance
Webmail security add-ons
Some webmail providers offer email security modules as an add-on.
Affordable solution
Secure if used along with widely used email solutions like Office365
Works only with selected webmail providers
Usability and security vary greatly by service provider
Does not protect the receiver from the threats
Does not protect from human errors like typos
Service providers outside EU may not comply with local regulations in EU
Email client add-ons
Yet another solution is to use various add-ons configured with local email clients like Outlook (part of Office suite), which encrypts emails and decrypts them respectively on the receiver side.
Safe if used properly
Possible to continue using an existing email client
Possibility of malware and compromised solutions
Requires skills and understanding of encryption basics
Works seamlessly only when the receiver uses the same email client
Safe and reliable
Easy to use
SMS verification
No installation or maintenance costs
Affordable
