Knowledge Base

Learn how to achieve DMARC compliance for Verified Mark Certificates (VMC). This guide explains DMARC, its importance for email security, and step-by-step instructions for configuring SPF, DKIM, and DMARC records.

Access New Sectigo Public Certificate Chain

WHOIS Email DCV Deprecation

Understanding Certificate Transparency (CT) Logs and Precertificates

Enterprise Public Key Infrastructure (E-PKI) Manager User guide

Exchange digitally signed emails with a contact to share S/MIME certificates, and then send and receive encrypted email.

Thunderbird can sign and encrypt email once an S/MIME certificate is imported into its certificate store and assigned to the account. This article covers that setup.

Sectigo customers request a Verified Mark Certificate (VMC) through the Sectigo shopping page and a guided certificate ordering wizard.

Generate a CSR for an S/MIME email certificate using the built-in Windows certreq command.

This article describes how to configure your email (S/MIME) certificate in Microsoft Outlook 2016 so you can sign and encrypt email.