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.

WHOIS Email DCV Deprecation

Understanding Certificate Transparency (CT) Logs and Precertificates

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

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

Access New Sectigo Public Certificate Chain

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.