Email authentication Knowledgebase

Welcome to the Sendmarc Knowledgebase – your trusted resource for mastering email authentication. 

Here, you’ll find expert guidance and practical solutions created to help you secure your email environment against today’s sophisticated cyberthreats. Our Knowledgebase is built to empower businesses of all sizes to understand and implement essential authentication protocols – SPF, and DKIM – for all of their sending sources.

This assists in ensuring their emails are delivered securely and their brands are protected from phishing, spoofing, and impersonation attacks.