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

This document explains how to import, configure, and use your SMIME / Email Certificate on an iOS device (such as an iPhone or iPad)

Understanding Certificate Transparency (CT) Logs and Precertificates

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.

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

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.