DigiCert Code Signing Certificates

DigiCert S/MIME Email Certificates

Email security for individuals and organizations of every size

Secure Email (S/MIME) Certificates

S-MIME Certificates

Pair your GeoTrust certificate with an S/MIME certificate from DigiCert to get end-to-end encryption that protects against tampering, phishing and man-in-the-middle attacks.

Every S/MIME-protected message you or your employees send or receive will travel securely from outbox to inbox, giving you confidence no one has manipulated the contents along the way.

  • 24x5 Standard Support
  • Automated certificate request and delivery
  • DigiCert CertCentral certificate management platform
  • Supported by Gmail, Yahoo and all major email services
  • Compatible with email apps like Microsoft Outlook and Apple Mail

Secure Email (S/MIME) Certificates

S-MIME Certificates

Pair your GeoTrust certificate with an S/MIME certificate from DigiCert to get end-to-end encryption that protects against tampering, phishing and man-in-the-middle attacks.

Every S/MIME-protected message you or your employees send or receive will travel securely from outbox to inbox, giving you confidence no one has manipulated the contents along the way.

  • 24x5 Standard Support
  • Automated certificate request and delivery
  • DigiCert CertCentral certificate management platform
  • Supported by Gmail, Yahoo and all major email services
  • Compatible with email apps like Microsoft Outlook and Apple Mail

Secure Email (S/MIME) Certificates

S-MIME Certificates

Pair your GeoTrust certificate with an S/MIME certificate from DigiCert to get end-to-end encryption that protects against tampering, phishing and man-in-the-middle attacks.

Every S/MIME-protected message you or your employees send or receive will travel securely from outbox to inbox, giving you confidence no one has manipulated the contents along the way.

  • 24x5 Standard Support
  • Automated certificate request and delivery
  • DigiCert CertCentral certificate management platform
  • Supported by Gmail, Yahoo and all major email services
  • Compatible with email apps like Microsoft Outlook and Apple Mail
Secure Email (S/MIME) Certificates

Features

Flexible Solutions

The right combination of S/MIME signing and flexibility to meet security requirements, stay compliant and satisfy every email use case.

Secure Email for Individual

Ideal for individuals or small teams using Google or other shared email platforms.

Secure Email for Business

Employee subscriptions for individuals (i.e., jane.doe@example.com) or group subscriptions for shared or corporate email addresses (info@example.com), perfect for companies looking to guarantee the authenticity of users and their communications.

Specifications

  • IETF Compliant EKU
  • Meets CA/B Forum standards
  • Enables mailbox-validated, individual-validated, organization-validated and sponsor-validated signatures

Frequently Asked Questions

Tools

S/MIME Resources Thumb
TOOLS

S/MIME Validation Guidelines

S/MIME Resources Thumb 2
TOOLS

S/MIME Industry Requirements

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Securing email: Digital trust in communications

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Use Cases

DigiCert S/MIME Certificates are the ideal solution for individuals and organizations seeking to improve email security and visibility, including:

  • Meeting stringent compliance and/or regulatory environments
  • Protecting company data and IP
  • Insulating users from phishing and spoofing attacks
  • Improving user trust
  • Securing sensitive data in transit
DigiCert Document Signing Certificates

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