SPF, DKIM, and DMARC authentication: How they work together
Learn what SPF, DKIM, and DMARC do, why you need all three, and how to set each one up on your domain.
DMARC fail? Here’s what it means and how to fix it
A DMARC fail means your email didn’t authenticate for the domain in the From field. Learn what each DMARC fail error code means and how to fix it.
DMARC implementation: How to protect your domain in 6 steps
Learn everything you need to know about DMARC implementation to better protect your domain and customers.
How DMARC works with subdomains and the sp tag
Learn how DMARC works with your subdomains and the sp tag to bring DMARC to enforcement and protect your business from impersonation.
What happens when DMARC policies are applied to subdomains?
Learn how DMARC policies affect subdomains, including policy inheritance, the sp tag, alignment issues, and how to enforce DMARC without disrupting legitimate email.
6 best DMARC vendors for multi-domain monitoring & management
Managing DMARC across 50 or 500 domains is a different problem than managing one. Learn how the top vendors compare on bulk onboarding, grouping, and discovery.
DMARC alignment: Strict vs relaxed (what’s the difference?)
DMARC alignment decides whether your From domain matches SPF and DKIM. Learn how strict and relaxed modes work, and how to fix alignment failures.
How does Valimail compare to other Email Trust platforms?
Valimail is an automated DMARC platform. Learn what it does, how it works, how it compares to other vendors, and who it’s the right fit for.
If DMARC is so great, why isn’t everyone doing it?
You’ve likely heard about DMARC before, but do you need a DMARC record? Is DMARC necessary, and if so, why aren’t more people using it? We have answers.
Trust is the new security perimeter in education
Educational institutions depend on trusted email. See how Microsoft and Valimail help prevent spoofing, secure domains, and protect campus communities.
How to move from DMARC p=none to p=reject safely
p=reject is the only DMARC policy that stops spoofing, but you don’t switch overnight. Here’s how to move from p=none to p=reject without blocking real mail.
Online brand protection: strategies to stop impersonation
Protect your brand online with strategies for stopping email impersonation, securing your site and social accounts, and defending your trademarks.