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Free DMARC Visibility for Microsoft 365 Users

Monitor is the only completely free and unlimited solution for DMARC that helps you find email deliverability issues in seconds and reveal all traffic being sent on your behalf so you can quickly mitigate potential phishing attacks.

  • No trial offers or obligations
  • No credit card required
  • It’s free (and always will be)

Start using Monitor for free!

Trusted by 65,000+ businesses of all
industries and sizes

Monitor identifies up to 99% of your email services by name

Sign up to get a global view of the traffic being sent on behalf of your primary and subdomains.

Get up and running in
5 minutes or less

Deploy and point a DMARC record to the Valimail Cloud in 5 minutes or less. Just fill out the form above and Monitor will start monitoring. 

See everyone sending on your behalf - good and bad

Discover every third-party cloud service hidden inside your domain by name, not just IP. Find senders spoofing your identity to phish your employees.

Eliminate XML DMARC reports forever

Every week Monitor sends you a detailed DMARC report that shows you which domains are passing and failing DMARC, aligned SPF, and DKIM.

See, domain visibility really
is priceless

I was amazed at how much traffic was fake or spammy. I honestly look forward to looking at the report each week.
Jared W.
Director of Marketing & Design
Valimail is the best tool to expose all the issues related to email delivery. It has great reporting that provides immense knowledge into what’s happening with spam, the origins of emails, and more.
Tarun G.
Director of Engineering
After adding my domains it was easy to make sure all my emails were being monitored, and the interface makes it very easy to understand what is going on.
Verified User
Non-Profit Organization Management

Companies like Splunk, Mailchimp, and Twilio recommend Valimail to their customers

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Phishing and BEC protection starts with your domain — verify your DMARC status with the Valimail Domain Checker.