Email Signing and Encryption Certificates

Enterprise S/MIME Solutions: Automate email security‎ and put a stop to hackers and phishing scams

Secure your corporate email accounts by digitally signing and encrypting communications with Sectigo S/MIME email certificates.

Schedule a Demo Start a Free Trial

Without S/MIME certificates, your work emails are prone to costly attacks

Posing as legitimate employees, servers or devices, hackers can utilize email to infiltrate an organization’s digital infrastructure and wreak havoc on its business, potentially resulting in:

Customer data breaches
Theft of intellectual property
Capital theft
Brand reputation damage

S/MIME (Secure/Multipurpose internet Mail Extensions) email certificates validate the digital identity of the user and encrypt and decrypt emails and attachments. Sectigo's secure enterprise email certificates are supported by all the major email providers and mail applications, including Microsoft Outlook on the web (Outlook 365), Exchange, Gmail, Apple Mail, popular mobile operating systems, and more.

Benefits of Sectigo enterprise S/MIME email certificates

Email signing

With our enterprise S/MIME certificates, you can verify that emails and signed messages came from the intended sender and ensure your business is safe from phishing attacks, malware, and business email compromise (BEC) attacks. A digital signature authenticates the sender's identity and allows end-users to detect any modification to the email content or attachments after it’s been signed.

Email encryption

Secure email communications by enabling end-to-end encryption for email messages and attachments between you and your intended recipients. Any encrypted and signed email cannot be intercepted and decrypted by man-in-the-middle attacks, packet sniffers, or HTTPS proxies.

Regulatory compliance

Secure email certificates help your organization remain compliant with security and privacy requirements, including GDPR, HIPAA, DFARS, NIST & ITAR, and other U.S. federal regulations.

CA/Browser Forum compliant S/MIME certificates

All Sectigo’s S/MIME certificates are compliant with industry standards, and in accordance with the latest Certification Authority Browser Forum (CA/Browser Forum) rules. By consistently meeting the CA/Browser Forum’s requirements, we help our customers remain compliant themselves while ensuring our certificates are interoperable with 3^rd party systems and popular email tools.

Microsoft Intune deployment

Many organizations use Microsoft Intune to manage mobile devices and apps used by employees use to securely access data and resources. Issuing digital certificates to those mobile devices provides additional protection from unauthorized access to critical business systems through Wi-Fi, VPN, and email clients. Furthermore, S/MIME certificates offer a better, more secure experience for employees with seamless authentication and can replace cumbersome passwords and multi-factor authentication (MFA).

From a single dashboard, Sectigo Certificate Manager seamlessly provisions S/MIME certificates to InTune and installs them on the employees’ mobile devices. This platform then automates the entire certificate lifecycle, from issuance to renewal.

Private key backup for S/MIME

Sectigo offers a modern Key Vault service, which helps customers store their S/MIME private keys and retrieve them when needed. This functionality is especially helpful when trying to recover access to old emails after a private key has been lost or when an employee has left the organization.