Best DMARC Software for Microsoft 365

Compare the Top DMARC Software that integrates with Microsoft 365 as of November 2025

This a list of DMARC software that integrates with Microsoft 365. Use the filters on the left to add additional filters for products that have integrations with Microsoft 365. View the products that work with Microsoft 365 in the table below.

What is DMARC Software for Microsoft 365?

DMARC software enables organizations to authenticate emails sent from their domain in order to prevent fraudulent activity and increase deliverability. DMARC stands for Domain-Based Message Authentication, Reporting, and Conformance. Compare and read user reviews of the best DMARC software for Microsoft 365 currently available using the table below. This list is updated regularly.

  • 1
    SpamTitan

    SpamTitan

    TitanHQ

    SpamTitan email security is an email spam filter for businesses, smbs, MSPs, and schools. SpamTitan email security blocks spam as well as phishing and day-zero attacks, viruses, malware, ransomware, and other email threats. Helps control mail flow, clean it, and protect against unwanted email. We provide easy-to-use yet advanced email security for businesses, smbs and MSPs that are Office365 friendly. SpamTitan - Premium functionality included: • CEO Impersonation protection • Phishing/ Spear phishing protection • Link analysis • Full Sandboxing • Zero Day Attacks protection • Mail Spooling • Spoofing protection • Malware and Ransomware protection • SPF/DKIM/DMARC checking • Encryption • Fully multitenant environment • Ability to rebrand the entire UI • Full REST API: • Comprehensive support and set up docs Try a FREE, fully supported trial of SpamTitan Email Security today.
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    Starting Price: $2.14/user/month
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  • 2
    Symantec Email Security.cloud
    Safeguard Microsoft Office 365, Google G Suite, and on-premises email with the industry’s most complete email security solution. Insulate users from spear phishing, credential theft and ransomware attacks by using Email Threat Isolation. Prevent insidious email threats such as spear phishing, ransomware, business email compromise and email spam. Stop spear phishing emails with multiple layers of protection, threat isolation, spam filtering, advanced security email analytics, built-in user awareness, education tools, and more. Block the latest ransomware with content defense, sandboxing, and link protection technologies that detect emerging, stealthy, and zero-day attacks. Defeat business email compromise with impersonation protection, sender authentication enforcement and brand protection controls. Protect your brand reputation by using automation to solve the practical issues of enforcing sender authentication (DMARC, DKIM and SPF) with Symantec Email Fraud Protection.
  • 3
    dmarcian

    dmarcian

    dmarcian

    Our DMARC management platform visualizes DMARC data in powerful and meaningful ways so you can quickly identify authentication gaps with your SPF and DKIM configurations, as well as unauthorized use of your domains. In addition to aggregating DMARC data, our platform provides domain administration teams with the necessary features to adopt DMARC with clarity and confidence. Providing actionable insights, it is powered by the most accurate source classification engine in the industry and affords users with assurances of the true origin of a particular mail stream. dmarcian has been processing DMARC data since the inception of the specification in 2012.
  • 4
    Valimail

    Valimail

    Valimail

    Protect your company from phishing and BEC with industry-leading DMARC technology. Valimail is a pioneering, identity-based, anti-phishing company that has been ensuring the global trustworthiness of digital communications since 2015. Valimail delivers the only complete, cloud-native platform for validating and authenticating sender identity to stop phishing, protect and amplify brands, and ensure compliance. Building trust in your email means cutting off phishing at its root. And you also get the benefits of brand protection, compliance, increased email deliverability, and the ability to leverage cutting-edge email standards like BIMI, AMP, and Schema.org. Automatic detection of outbound sending services. Access to the largest database of named sending services. Detailed views into the authentication status (SPF, DKIM, and DMARC) of all sending domains and services. Automated DKIM key detection and configuration.
  • 5
    Mailflow Monitoring

    Mailflow Monitoring

    Mailflow Monitoring

    Mailflow Monitoring alerts you, in real-time, to down email servers and and helps diagnose excessive delivery delays. Things that can negatively impact your business if not corrected quickly. And it's FREE. MailFlowMonitoring.com sends an email to your email server(s) every few minutes and waits for a reply. If the server takes too long to respond, or the roundtrip SMTP time is exceeded we send you an alert via Email, Webhook, SMS, PagerDuty or Slack. Did we mention it's FREE? With our mail flow monitoring solution you can monitor an unlimited number of email servers, set up an unlimited number of notification policies to help you keep an eye on your servers. Ahem, for FREE. With MailFlowMonitoring.com you can use whichever alerting mechanism works best for you: webhook, slack, email or SMS. And you can set up different ones for each policy you establish. You already know the price. With MailFlowMonitoring.com you control how often do we send the email to check your servers.
  • 6
    EmailAuth.io

    EmailAuth.io

    EmailAuth

    EmailAuth® is a TIER 1 OEM and a market leader in Email Authentication. Available 100% on-premise, or in-country cloud (local cloud) or on AWS/AZURE/GCP globally - We make it easy to unleash the power of email authentication. It is an anti-spoofing, anti-impersonation, and anti-phishing platform that ensures that no one can abuse your domains online. If anyone in the world spoofs your domains, EmailAuth collates data from all across the world to ensure that even a single unauthorized email is caught and rejected by global recipients of the world. It even extracts the IP of the sender, so this threat intelligence can be used to block the attacker across your cyber security fabric (SOAR capable). #StopGettingPhished #BeSpoofProof
  • 7
    Agari

    Agari

    Fortra

    Use Trusted Email Identity to protect workers and customers from advanced email attacks. Advanced email attacks target a major security vulnerability that legacy email security controls do not address. Agari gives employees, customers, and partners the confidence to trust their inbox. Unique AI with over 300m daily machine learning model updates understands the good to protect you from the bad. Global intelligence powered by trillions of global email messages provide deep insights into behaviors and relationships. Years of experience defining the email security standards that have been adopted by Global 2000 companies.
  • 8
    DuoCircle

    DuoCircle

    DuoCircle

    Reliable and secure email hosting services for SMB and Enterprise. Safely processing over 100 million emails per month for our customers. Enhanced gateway security and filtering, inbound email security, email service backup and outbound SMTP using a new high quality infrastructure for top quality results that our customers deserve. Products include, Secure email gateway, email backup MX, email forwarding, outbound SMTP and more. DuoCircle protects against phishing attack with Link Click Protection, a part of the Advanced Threat Defense Suite. You’re covered with Link Click Protection even if site content changes between clicks. You get total protection from phishing and your confidential corporate information is secured because your employees are simply prevented from visiting sites that misuse such information. You get instant feedback in the form of an alert when a suspicious link is about to be visited.
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