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Complete Phishing
and BEC Protection

Microsoft, the leader in preventative email protection, and Valimail, the leader in email authentication, partner together to offer comprehensive email security for O365 clients.

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450,000+ domains are secured by
Valimail + DigiCert

Birkenstock retail footwear brand protected with email security platform
Aritzia retail fashion brand using email authentication solution
UT Health San Antonio
Mercedes-Benz global brand protected with email security platform
Villanova University higher education institution using email authentication

Domain Spoofing Protection

In partnership with Microsoft, Valimail Enforce is the only solution to provide visibility into services that O365 customers use to email their own employees, such as payroll messages. This unparalleled visibility means O365 customers are less likely to block good email when they get to DMARC enforcement.

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Commitment to MISA to Combat Email Threats

Valimail is integrated with Microsoft Security technology to enhance the protection of our shared customers against the growing landscape of cyber threats.

Available on Azure Marketplace

Valimail is available through Azure Marketplace to simplify and accelerate your purchase and implementation cycle.

You can purchase Valimail with your existing Azure commitment—no need to find additional budget.

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Ensure Inbox Compliance

Valimail helps you comply with mailbox providers’ latest sender authentication including Microsoft’s requirements.

FedRAMP Compliance

Valimail is the only DMARC vendor that meets the highest federal, local, and state standards in email security and compliance.

Meet PCI SSC Standards

If your business transmits, stores, or processes payments, then Valimail can help you meet the standard of getting to DMARC enforcement.

Valimail’s proven track record and commitment to innovation and compliance make them a premiere partner in Microsoft 365 email security. Valimail Enforce, a leading automated DMARC solution in Azure Marketplace, helps organizations secure their email domains and protect against email-based threats while significantly reducing the resource burden on IT teams.

yvonne muenech

Yvonne Muench

Senior Director, Business Program Management, Microsoft

The Journey to 
Email Integrity: Streamlining DMARC

In this eBook, we’ll explore how Valimail and Microsoft work together to help you accelerate your path to DMARC enforcement.

Frequently asked questions

How does Valimail help strengthen Office 365 email security?

Valimail helps organizations improve Office 365 email security by adding automated DMARC enforcement and sender identity protection to their Microsoft environment. While Microsoft helps protect users from inbound threats, Valimail helps ensure only trusted, authorized senders can send email on behalf of your domains, reducing spoofing and impersonation risk.

DMARC for Office 365 helps protect your domains from being used in phishing and impersonation attacks. Valimail automates the path to enforcement by identifying legitimate senders, simplifying SPF and DKIM management, and helping teams move from DMARC monitoring to enforcement faster and with less manual effort.

Valimail complements Office 365 phishing protection by securing the outbound identity layer that attackers often try to abuse. Microsoft helps defend inboxes from malicious messages, while Valimail strengthens Office 365 DMARC and Microsoft DMARC enforcement so unauthorized senders can’t spoof trusted domains. Together, Valimail Microsoft security workflows help organizations reduce impersonation risk, improve domain trust, and strengthen protection across the email ecosystem.

Resources for Valimail 
and Microsoft customers

set up DMARC record in Office 365

How to set up a DMARC record in Microsoft 365 in 2026

Read more

microsoft dmarc announcement

Microsoft is tightening email sender requirements: Here’s what you need to know

Read more

Set up DMARC for Microsoft 365

How to set up SPF, DKIM, and DMARC for Microsoft 365

Read more

Get started for free
with Monitor

Start your path to DMARC enforcement with a panoramic view of the traffic being sent on your behalf.
No trial offers, credit cards, or obligations.

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[UPCOMING WEBINAR] Valimail Product Release: Get Better Brand Protection and Brand Impressions – Register HERE