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Secure Email Encryption Solutions

S/MIME Certificates

Using encryption and digital signatures, Secure/Multipurpose Internet Mail Extensions (S/MIME) certificates ensure email security, confidentiality, and integrity. The S/MIME certificate uses the recipient’s public key to encrypt the message and only the intended recipient’s private key can decrypt the message. This allows the sender to be confident that the signed email message will only be read by the intended party, and the receiver to verify the integrity and claimed origin of the message.

It’s crucial for both businesses and individuals to secure email communications and ensure message integrity. Whether you’re an individual, startup, small business, or enterprise, EnterpriseSSL offers S/MIME email certificate options that will meet your needs.

EnterpriseSSL is a leading S/MIME certificate provider and our secure email certificates are supported by all major mail applications including Microsoft Outlook, Exchange, Apple Mail, popular mobile operating systems, and more.

Personal Email Security (S/MIME)

Used for personal email

Enables end-to-end encryption of emailsDigitally sign emails to prevent email fraudSupported by Microsoft Outlook, Apple Mail and other popular email clientsEnables digitally signing Microsoft Office files (docx, pptx, xlsx etc.)Validates email address onlyFree online, phone, email and chat support

Save Time and Money with a Multi-Year Certificate

Securing your email just got easier. With coverage ranging from 1-2 years, EnterpriseSSL's multi-year plans provide instant savings and consistent coverage in a simplified, long-term solution. Secure email certificates from EnterpriseSSL guarantee you get our best price, locked in for 2 years.

Requirements and Issuance

Leveraging numerous sophisticated security features, S/MIME email certificates give users the confidence to trust their digital correspondence and avoid many of today’s attacks on enterprise email users and infrastructure. In order to enable this authentication process, there are certain steps to be aware of when ordering and receiving your EnterpriseSSL S/MIME certificate. Learn more about requirements, prerequisites, and the issuance process.

Intuitive Dashboard

In our customer dashboard, you'll be able to view all products you have with EnterpriseSSL, view their lifecycle status, issue or reissue, and renew expiring certificates, saving you time and fear that an expired certificate may down your site at an unexpected time.

Trusted by Leading Brands Globally

Securing some of the world’s largest and best-known brands.


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Still Have Questions?

Our technical support team is ready to assist you in selecting the right certificate for you. Our experts are helping customers 24/7/365.
Simply chat with us now or reach us at [email protected] or by phone:

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