Secure Your Email

Encrypt and digitally sign your emails with publicly trusted S/MIME Certificates

  • Ensure privacy of sensitive information
  • Authenticate email sender to distinguish from phishing attacks
  • Create a tamper-evident seal around email contents

Start Securing Your Emails

You need an S/MIME Certificate to digitally sign and encrypt your emails. Pricing depends on the level of verification and the amount of information contained in the certificate

PersonalSign1 For Personal Use

From / year
  • Certificate represents only the email address of an individual (e.g., john.smith@globalsign.com)
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PersonalSign2 For Personal Use

From / year
  • Certificate represents Email Address & Named Individual (Joe Smith joe.smith@abc.com)
Buy Now

For Business Use

From / year
  • Certificate represents an employee at an organization and includes the employee’s name, email, and company name (e.g., John Smith, john.smith@globalsign.com, GMO GlobalSign, Inc.)
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For Department Use

From// year
  • Certificate represents a department and includes the department name, email, and company name (e.g., Marketing, marketing@globalsign.com, GMO GlobalSIgn, Inc.)
Buy Now

Please ensure to order your certificate from the Region where the company in the certificate is based, and with the correct currency. If your certificate request upon ordering does not match these criteria, your order may risk being delayed, and/or not being processed.

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Digitally Sign & Encrypt Emails

S/MIME Certificates allow you to digitally sign and encrypt emails so you can prove your emails actually came from you and not an imposter, and ensure that only your intended recipient can access the encrypted contents.

  • Digitally Sign Emails

    Prove authorship and prevent tampering, assuring the email recipient that the email came from you, not an imposter and that the content of the email has not been altered in transit.

  • Encrypt Emails

    Ensure your message can only be opened by the intended recipient, protect emails in transit and at rest, and keep sensitive information from falling into the wrong hands.

Why choose GlobalSign for S/MIME?

Public Trust

Certificates are automatically trusted in popular desktop email clients, including Microsoft Office, Thunderbird, Apple Mail, Lotus Notes, and Mulberry Mail

20+ Years Experience as a Certificate Authority

GlobalSign has over two decades of experience helping users secure their email with S/MIME

Industry-leading local language support

GlobalSign has offices worldwide local language customer support and account management

Need multiple S/MIME Certificates?

Need multiple S/MIME Certificates?

Use our certificate management platform to make your life much easier and save money compared to purchasing separate certificates. Centralizing all certificates simplifies lifecycle management, helps avoid unexpected expirations, and makes it easy to set budgets.

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What customers are saying

Easy to Understand

The process and instructions have been made easier to understand with the step-wise instructions and FAQs, especially those, like me, without access to an IT department.

Dietrich Bartel, 10/28/2019

Michael Trotta Rocks

I'm pretty sure Michael Trotta is plugged directly into your service, via some cybernetic contraption that you have yet to patent. I really sppreciate his candor, and the speed of his responses!

Daniel Kloepfer, 12/05/2019

Easy to Understand

The process and instructions have been made easier to understand with the step-wise instructions and FAQs, especially those, like me, without access to an IT department.

Dietrich Bartel, 07/08/2019

Our Customers & Partners