How to set up a DMARC record in Microsoft 365 in 2026
Set up DMARC in Microsoft 365 step by step. Covers DNS record creation, policy options, reporting setup, and common Office 365 DMARC issues and fixes.
8 best DMARC providers and vendors in 2026
Looking for the right DMARC solution? We compare 8 providers on features, automation, and who they’re best for to help you narrow down your options.
Checklist: What to look for in a DMARC-as-a-service provider
Evaluate DMARC-as-a-service providers with a checklist covering visibility, sender discovery, SPF/DKIM alignment, security, and safe path to enforcement.
DMARC policy options: What it is & how to reach enforcement
DMARC policies control what happens when emails fail authentication. Learn your policy options (none, quarantine, reject) and how to reach enforcement.
DMARC percentage (pct) tag: what it does and how to use it
The DMARC pct tag controls what percentage of emails get checked against your policy. Learn what it does, why pct=0 is dangerous, and how to use it correctly.
How to read email headers: Decode SPF, DKIM, and DMARC like a pro
Ever opened an email header and had no idea what was going on? This quick guide will give you the know-how you need to understand.
How to verify email sender identity: Complete guide for 2026
Learn the greatest threats to your email communications and how to better verify email sender identity to protect your business and customers.
DMARC in finance: Securing bank and financial emails
Learn how DMARC protects financial institutions from email fraud and phishing attacks while maintaining regulatory compliance and customer trust.
Solving the seven biggest DMARC challenges: A guide for email security teams
Struggling with DMARC? Explore 7 common challenges and find targeted solutions to move your email authentication project forward.
Unlock visibility with Valimail’s new Domain Report Card
Gain clear visibility into your domain’s email authentication with Valimail’s free Domain Report Card—assess risk, identify gaps, and get DMARC insights.
Stop playing catch up: How proactive alerting prevents email failures before they happen
Manual DMARC management leaves blind spots. Discover how Valimail’s proactive alerting gives IT teams visibility and control before problems start.
Meet the Valimail support team: 46+ years of DMARC expertise on your side
Meet the people behind Valimail’s world-class support team, bringing 46+ years of email authentication experience to our customers.