DigiCert - Email Signing (S/MIME) Certificate
Digitally signed, end-to-end encrypted email communications (S/MIME) from the worlds #1 CA DigiCert. Email certificates, also known as S/MIME certificate, provide extra security to your email communications by using encryption and decryption.
DigiCert- Email Signing (S/MIME) Certificate

Email certificates, also known as S/MIME certificate keeps your emails protected during transit.

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DigiCert® PKI Platform for S/MIME offers access to a wide range of features that can be personalized to meet your every need. There are options for entirely cloud-based deployment for simplicity, on-premises deployment to meet corporate security policies, or hybrid deployments for those who want to mix and match.
The DigiCert® PKI Platform for S/MIME includes S/MIME key escrow service, certificate lifecycle management, and the trusted DigiCert Certificate Authority (CA). It provides centralized email administration and recovery with secure key escrow, automated deployment of digital certificates, with personalized configuration and enrolment methods.
Authorized users can set up to digitally sign and encrypt email communications across all corporate-approved devices in no time. Business applications are compatible with email security, secure communications, and user authentication, a business as usual process.
S/MIME Certificates
Email client certificates have a public/private key pair. Your private key stays with you and is used to sign outgoing emails and decrypt incoming emails encrypted with your public key. Your public key is used to verify your signature and encrypt emails sent to you.

S/MIME is the accepted method (more precisely, a protocol) for sending digitally signed and encrypted messages. S/MIME allows you to encrypt emails and digitally sign them. When you use S/MIME, it helps the people who receive the message by:
  • Ensuring that the message in their inbox is the exact message that started with the sender.
  • Ensuring that the message came from the specific sender and not from someone pretending to be the sender.
To do this, S/MIME utilizes cryptographic security features such as authentication, message integrity, and non-repudiation of origin (using digital signatures). S/MIME also helps enhance privacy and data security (using encryption) for electronic messaging.
Email Encryption
  1. The original message will get captured after the sender clicks on the send message button.
  2. Once the original message is captured, the encryption process will use the receivers' public key.
  3. The encrypted message will be replaced by the original message, which the sender sent.
  4. Finally, the encrypted email is sent to the receiver.
S/MIME Certificates
Email Decryption
  1. The receiver will get the encrypted email in its original format.
  2. The encrypted message is captured and needs to be decrypted.
  3. The message is decrypted using a private key from the receiver.
  4. Once the intended recipient decrypts the message, it can be read.
S/MIME Certificates

Message Privacy - Email privacy protects your emails against unauthorized access. If your email is encrypted with S/MIME, then your emails are only readable by the intended recipient. Any message or documents from the emails will be confidential between the sender and receiver.
Message Integrity - S/MIME certificates ensure that the inbox's message is the same message that the sender has sent. When a message is decrypted before reaching the receiver, it verifies the email content to ensure the sender's message is unchanged. If any changes are found in the email, then the decryption process fails, and hence, S/MIME certificates help you maintain the message integrity.
Tamper prevention - Your email will be safe from tampering if you encrypt it with S/MIME Certificates. It prevents malicious applications from editing your email and maintains integrity. It ensures receivers that the email they are about to open has not been tampered with and is safe for them to read.
Unaltered contents - Emails can't be modified when you encrypt them with S/MIME. S/MIME encrypted emails can only be read. The recipient will be notified if the original email is altered or modified in any way by an unauthorized third party.
Proof of authorship - It assures the recipient that the email they received is from the original sender. A secure email will display the recipient's relevant cues through a digital signature that guarantees email integrity and ensures message privacy. The digital signatures prove the authorship of the sender.
The Digital Signature badge on Receiver’s Email
S/MIME Certificates
Detailed information of your Digital Signature after clicking on the badge.
S/MIME Certificates

Shop SSL/TLS offers SSL Certificates from the leading brands like DigiCert, Thawte, GeoTrust, and RapidSSL. Our trusted seals bring customer confidence that increases online sales and enhances your business growth. Our sole mission is to make the world more secure, transforming one business after another. We believe that the reason behind our success is customer trust and our efforts to offer the best services. We offer free premium support for one domain and a Multi-Year SSL/TLS certificate plan with discounted pricing, which are the primary reasons to trust and choose us.
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