An S/MIME (Secure/Multipurpose Internet Mail Extensions) certificate is a digital certificate that enables email encryption and digital signing. It ensures your email communication remains confidential and confirms your identity to recipients, safeguarding against phishing attacks.
Protect Your Emails with CertiNext’s Secure Email Certificate
Encrypt, authenticate, and safeguard your email communication against phishing, tampering, and unauthorized access.
Why Choose CertiNext's S/MIME Certificates?
Quick & Hassle-Free Setup
Easily obtain your Secure Email Certificate through CertiNext’s simple online process. Just provide your name, email address, and password, and receive your certificate within minutes.
Seamless Compatibility Across Devices
Our certificates work effortlessly with Microsoft Outlook, Apple Mail, Mozilla Thunderbird, and various devices, including iPhones, iPads, Android phones, and Windows tablets.
Pricing Plan
Choose the Right S/MIME Email Security Plans
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BasicBuy Now$ / year
Mailbox-validated certificate that verifies control of your email address, so you can sign and encrypt everyday email for private, authenticated communication.
Encrypts emails to prevent unauthorized access
Digitally signs emails to verify sender authenticity
Ensures basic protection for personal use
IndividualBuy Now$ 19 / yearIdentity-validated certificate that binds your verified personal name to your email address, so recipients can trust who sent every signed and encrypted message.
Includes your validated personal identity in the certificate
Prevents email tampering and phishing threats
Ideal for professionals handling sensitive data
OrganizationBuy Now$ 45 / yearOrganization-validated certificate that asserts your verified organization's identity on every signed and encrypted email, built for business communication.
Asserts your verified organization's identity on every email
Ensures compliance with industry security standards
Designed for businesses and high-trust communications
-
BasicBuy Now$ / year
Mailbox-validated certificate that verifies control of your email address, so you can sign and encrypt everyday email for private, authenticated communication.
Encrypts emails to prevent unauthorized access
Digitally signs emails to verify sender authenticity
Ensures basic protection for personal use
IndividualBuy Now$ 19 / yearIdentity-validated certificate that binds your verified personal name to your email address, so recipients can trust who sent every signed and encrypted message.
Includes your validated personal identity in the certificate
Prevents email tampering and phishing threats
Ideal for professionals handling sensitive data
OrganizationBuy Now$ 45 / yearOrganization-validated certificate that asserts your verified organization's identity on every signed and encrypted email, built for business communication.
Asserts your verified organization's identity on every email
Ensures compliance with industry security standards
Designed for businesses and high-trust communications
Secure Your Emails with CertiNext's S/MIME Certificates
Secure your emails with CertiNext’s S/MIME Certificates. Digitally sign and encrypt messages to protect sensitive data, prevent tampering, and ensure confidentiality. Stay safe from phishing, unauthorized access, and data breaches with advanced encryption.
How CertiNext’s S/MIME Certificates Benefit You:
- Prevent tampering and unauthorized modifications
- Maintain content integrity and authenticity
- Keep sensitive information private
- Ensure message confidentiality
How CertiNext's S MIME Certificates Work?
Sender signs email with private key
Sender
Sender signs email with private key
Email in transit
Sender signs email with private key
Recipient
Sender signs email with private key
Frequently Asked Questions
Find answers to common questions about authentication, validation, pricing, and usage of document signer certificates.
Contact UsWhat is an S/MIME certificate, and why do I need one?
How do I install an S/MIME certificate on my email client?
CertiNext provides a step-by-step guide for various email clients. Generally, you'll need to download the certificate from CertiNext, open your email client settings, and import the certificate into your "Certificates" section. Specific instructions will be sent to you along with your certificate.
How long does an S/MIME certificate from CertiNext last?
S/MIME certificates typically have a one-year validity, after which they must be renewed. CertiNext will notify you when it's time to renew, ensuring uninterrupted email security.
Can I use one S/MIME certificate for multiple email addresses?
No, each S/MIME certificate is tied to a specific email address to maintain individual authenticity and security. If you need protection across multiple addresses, you'll need separate certificates for each.
What happens if I lose access to my private key?
The private key is essential for decrypting messages and digitally signing emails. If you lose it, you will no longer be able to access encrypted emails or sign messages. CertiNext recommends securely backing up your private key. In the event of loss, you may need to request a new certificate.
How do I renew my S/MIME certificate with CertiNext?
Simply log into your CertiNext account, select the certificate you wish to renew, and complete the verification and payment steps. CertiNext will then issue an updated certificate for uninterrupted service.
Are CertiNext's S/MIME certificates compatible with all email clients?
CertiNext's S/MIME certificates work with most major email clients, including Outlook, Apple Mail, and Thunderbird. For any specific compatibility questions, our support team is ready to assist.
Why Choose CertiNext?
24/7 Support
Strong support along with a library of resources to ensure peace of mind
Security & Quality
We are CMMI Level 5 Certified, ISO 27001, SOC2 and Webtrust certified
Credibility
Over 50 million certificates issued to hundreds of companies worldwide
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