Email Trust

What is S/MIME or
encrypted email?

What is S/MIME or encrypted email?

Secure/Multipurpose Internet Mail Extensions, or S/MIME, is an internet standard to digitally sign and encrypt email messages. It ensures the integrity of email messages remains intact while being received. By using digital signatures, S/MIME provides for authentication, message integrity, and non-repudiation of origin. In addition, S/MIME includes encryption that strengthens privacy and data security for electronic messaging.


How do you protect and encrypt an email message?

Emails messages can be secured and encrypted with S/MIME, or Secure/Multipurpose Internet Mail Extensions and PKI, or digital certificates. S/MIME combined with digital certificates can provide data encryption, message integrity and non-repudiation of message origin. The DigiCert® PKI Platform for S/MIME includes S/MIME key escrow service, certificate lifecycle management and the trusted DigiCert Certificate Authority (CA).


What are ways to prevent email phishing?

Email users can prevent email phishing by enforcing a DMARC policy that effectively screens out emails that are fraudulent or a phishing attempt. DMARC goes a step beyond SPF and DKIM policies to ensure sent emails are authentic.

In addition, Verified Mark Certificates with DMARC enforcement help to ensure an organization isn’t being impersonated and that a brand is represented by its authentic logo in an inbox.