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DigiCert S/MIME Certificate

Secure your email communications by encrypting and digitally signing your emails with the CA trusted by 90% of Fortune 500 companies.

DigiCert S/MIME Certificates make it easy to digitally sign and encrypt your emails—protecting your email communications from a variety of cyber threats.

Did you know that over three-quarters of data breaches were executed via email attacks (source: Verizon)? That’s why it is imperative to take all measures possible to secure your email. Implementing email security best practices (such as S/MIME certificates) protects your company, employees, customers, and all who interact with you from dangerous criminals.

How S/MIME Certificates Protect Your Emails

S/MIME uses a combination of digital signatures and true end-to-end encryption to protect your emails against a litany of threats, including:

  • Theft of intellectual property and/or capital
  • Damages to brand integrity
  • Accidental data exposure
  • Man-in-the-middle attacks
  • Spoofed phishing emails
  • And many other potential breaches of security, security oversights and forms of cybercriminal attacks.

Here's how the dual protection offered by DigiCert S/MIME certificates works:

  • Digital signatures validate the sender. When you digitally sign your emails, the recipient will know that the email came from you, not an imposter or phisher. This protects your brand and helps users identify and avoid email phishing scams.
  • End-to-end encryption protects the email contents. Most email inboxes are full of private data—customer records, company secrets, HR records, and more. If a hacker broke into your email system, they could steal all kinds of sensitive data! But with end-to-end encryption, even if a hacker manages to steal emails off your server, they won’t be able to read the email contents unless they have your private key.
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Buy New or Renew Your DigiCert S/MIME Certificate

Installation Service:

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DigiCert Code Signing Certificate

  • Validation Type: OV
  • Reissue: Unlimited
  • Issuance: 0-2 Days
  • Warranty: N/A
  • Email Signing: Yes
  • Document Signing: Yes
  • Adobe-Supported: No
  • Email Encryption: Yes
  • Certificate Authentication: Yes
  • Device Licensing: Unlimited
  • Business Validation Icon Image Business Validated
  • Mobile Friendly Icon Image Mobile Friendly
  • Green Address Bar Image Padlock + HTTPS
Key Features and Benefits of DigiCert S/MIME Certificate
  • Protect emails from cybercriminals – Encrypting and digitally signing your email prevents the interception and compromise of the sensitive information often contained in emails.
  • Maintain compliance – End-to-end email encryption makes it easy for you to protect data and stay compliant with GDPR, HIPAA, and other regulatory frameworks.
  • Avoid phishing and malware – The DigiCert S/MIME Certificate proves the email sender’s identity is accurate and truthful, so you and your team can confirm that the emails they receive are not spoofed emails from a cybercriminal.
  • Protects your network and servers from attacks or leaks – Certificate-based authentication is far more secure than password authentication (which is susceptible to phishing, brute force, and interception). That means your servers and the private data they contain will be much more secure.
  • Securely send and validate Microsoft Office documents – By digitally signing your documents the recipient has proof of authorship and peace of mind knowing the document wasn’t tampered with.

Support Options

  • Submit your Support TicketGo Now Support Icon 4
  • Frequently Asked Questions (FAQs)Go Now Support Icon 5

Web, Mobile Browsers, Server and Client OS Compatibilities

  • Chrome 3+ (above)
  • Opera 7+ (above)
  • Safari all browsers
  • Firefox 1+ (above)
  • Netscape 9+ (above)
  • IE 5+ (above)
  • AOL 10+ (above)
Web Browsers Icon Image
Server and Client OS
  • Control Panels: Ensim, DotNet Panel, Plesk6+, Hsphere, Helm, and more.
  • Web Servers: Apache, Microsoft IIS 7, IIS6, IBM HTTP, Tomcat, Weblogic, Cobalt.
  • E-Mail Servers: Lotus Dominos, Exchange 2010, 2007, 2003, SmarterMail, etc.
  • Client OS: Mac OS X, Snow Leopard, Windows 7, Vista, Xp, 2000, Linux Client OS.
  • Server OS: Linux, Windows Server 2008, 2003, 2000, UNIX, Solaris, Novell, etc.
  • Proxy Server, Routers & Firewalls: Microsoft ISA 2004, ISA 2006, CISCO, etc.
Mobile Browser
  • Apple Iphone, Ipad Safari
  • Palm / Handspring Blazer 2.0+
  • Microsoft Pocket Internet Explorer
  • Netfront 3.0+
  • Blackberry
  • AT&T

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