DigiCert Secure Email (S/MIME) Certs vs Egress Protect: Side-by-Side Comparison (2026)

DigiCert Secure Email (S/MIME) Certs: S/MIME certificates for end-to-end email encryption and signing. built by DigiCert. Core capabilities include End-to-end email encryption using S/MIME, Digital message signing with public/private key pairs, Automated certificate request and delivery..

Egress Protect: End-to-end email encryption with DLP and access controls for Microsoft 365. built by Egress. Core capabilities include End-to-end email encryption with 256-bit AES, Automatic and sender-initiated encryption based on policies, Granular access controls to restrict forwarding, printing, copying, and downloading..

Both serve the Email Encryption market but differ in approach, feature depth, and target audience.

DigiCert Secure Email (S/MIME) Certs differentiates with End-to-end email encryption using S/MIME, Digital message signing with public/private key pairs, Automated certificate request and delivery. Egress Protect differentiates with End-to-end email encryption with 256-bit AES, Automatic and sender-initiated encryption based on policies, Granular access controls to restrict forwarding, printing, copying, and downloading.

DigiCert Secure Email (S/MIME) Certs is developed by DigiCert. Egress Protect is developed by Egress. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

DigiCert Secure Email (S/MIME) Certs integrates with Gmail, Yahoo Mail, Microsoft Outlook, Apple Mail. Egress Protect integrates with Microsoft 365, Microsoft Office 365, Outlook, Outlook Web Access, Microsoft Purview Information Protection and 3 more. Check integration compatibility with your existing security stack before deciding.

DigiCert Secure Email (S/MIME) Certs and Egress Protect serve similar Email Encryption use cases: both are Email Encryption tools, both cover Encryption. Review the feature comparison above to determine which fits your requirements.