Best DMARC Software for Microsoft 365

Find and compare the best DMARC software for Microsoft 365 in 2026

Use the comparison tool below to compare the top DMARC software for Microsoft 365 on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    SpamTitan Reviews
    Top Pick

    SpamTitan

    TitanHQ

    $2.14/user/month
    39 Ratings
    SpamTitan email security protects businesses, schools, smbs and MSPs from spam. SpamTitan email security protects against spam, phishing, day-zero attacks and viruses, malware, ransomware and other threats to email. It helps to control mail flow, clean it, protect against spam, and protect against unwanted email. We offer easy-to-use, yet powerful email security for businesses, smbs, and MSPs that is Office365-friendly. SpamTitan Email Security is available for a free, fully supported trial. SpamTitan – Premium functionality included * CEO Impersonation protection * Spearphishing Protection/ Phishing * Link analysis * Full Sanding * Zero Day Attacks protection * Mail Spooling * Spoofing protection * Ransomware and Malware Protection * SPF/DKIM/DMARC checking * Encryption * Fully multi-tenant environment * Ability to rebrand entire UI * Full REST API * Set up documents and support SpamTitan Email Security is the best solution in the G2 Crowd Email Security. Start your free trial today!
  • 2
    Symantec Email Security.cloud Reviews
    Ensure the security of Microsoft Office 365, Google G Suite, and on-premises email systems by utilizing the most comprehensive email security solution available in the industry. Shield users from threats like spear phishing, credential theft, and ransomware attacks through the implementation of Email Threat Isolation. Combat pervasive email hazards such as spear phishing, ransomware, business email compromise, and spam with robust protective measures. Foil spear phishing attempts through a multi-layered defense that includes threat isolation, spam filtration, advanced email security analytics, and integrated user training and awareness programs. Defend against the latest ransomware attacks with advanced content defense strategies, sandboxing techniques, and link protection technologies that are designed to identify emerging and stealthy threats, including zero-day vulnerabilities. Counter business email compromise by employing impersonation protection, enforcing sender authentication, and implementing brand protection strategies. Enhance your brand's reputation and mitigate risks by automating the enforcement of sender authentication protocols like DMARC, DKIM, and SPF through the use of Symantec Email Fraud Protection, which addresses the practical challenges of maintaining email security effectively. By investing in these comprehensive solutions, organizations can safeguard their communications while fostering a culture of security awareness among users.
  • 3
    dmarcian Reviews
    Founded in 2012 by a primary author of the DMARC specification, dmarcian is dedicated to upgrading the entire world’s email by making DMARC accessible to all with superior tooling, educational resources, and knowledgeable support. Used by thousands and recommended by support teams around the globe, our DMARC Management Platform grants you visibility into and control over how your email domains are used. Our platform provides actionable insights and alerts for organizations of any size to deploy DMARC and its supporting technologies of SPF and DKIM, visualize email delivery data, and manage a secure domain services infrastructure. Rectify email security vulnerabilities, improve domain and brand reputation, and meet the growing demand of DMARC compliance requirements with our best-in-class offerings.
  • 4
    Valimail Reviews
    Safeguard your organization against phishing and business email compromise (BEC) by utilizing advanced DMARC technology. Valimail has been at the forefront of identity-driven anti-phishing solutions since its inception in 2015, helping to establish a reliable framework for digital communications worldwide. Their comprehensive cloud-native platform focuses on validating and confirming sender identities, effectively halting phishing attempts while enhancing brand integrity and ensuring compliance with regulations. By fostering trust in your email communications, you can eliminate phishing threats at their source. Additionally, this solution offers significant advantages such as brand protection, improved email deliverability, and the capability to adopt innovative email standards, including BIMI, AMP, and Schema.org. Features include automatic identification of outbound sending services and access to an extensive database of named sending services. Furthermore, it provides in-depth insights into the authentication status (SPF, DKIM, and DMARC) for all sending domains and services, along with streamlined DKIM key detection and setup, ensuring a robust defense against email fraud.
  • 5
    Mailflow Monitoring Reviews
    Mailflow Monitoring provides instant notifications about down email servers and assists in identifying significant delivery delays, issues that could severely affect your business if not addressed swiftly. This service is completely free of charge. By sending an email to your server(s) every few minutes and monitoring for a response, MailFlowMonitoring.com ensures that you receive alerts through Email, Webhook, SMS, PagerDuty, or Slack whenever there are delays or issues with SMTP response times. It’s worth noting again that this invaluable service comes at no cost. With our solution, you can monitor an unlimited number of email servers and create endless notification policies tailored to your needs—all for free. MailFlowMonitoring.com allows you to choose your preferred alerting method, whether it’s webhook, Slack, email, or SMS, and you can customize the alerting mechanism for each policy you set up. You have complete control over the frequency of checks on your servers, ensuring you stay informed without any financial burden. This flexibility empowers you to maintain optimal email server performance effectively.
  • 6
    EmailAuth.io Reviews
    We want you to simply focus only on what you do! EmailAuth.io is part of the Infosec Ventures group and our core value lies in taking care of your most valuable digital asset: Email. We thrive to increase your Email Deliverability and help you get the maximum ROI from your mailing campaigns and increase trust amongst your customers, partners and vendors! We don't just provide support, we manage! EmailAuth's methodology includes owning the journey of attaining ultimate security of your domains. Our team of Security Experts and dedicated Customer Success Managers make sure to work with you effortlessly.
  • 7
    Agari Reviews
    Utilize Trusted Email Identity to safeguard both employees and clients from sophisticated email threats. These advanced attacks exploit significant security gaps that traditional email protection measures fail to cover. Agari instills confidence in workers, customers, and partners to trust their email communications. Its innovative AI, with daily updates from over 300 million machine learning models, distinguishes legitimate messages from harmful ones. Drawing upon a vast repository of trillions of global email interactions, it offers profound insights into patterns and connections. With years of expertise in establishing email security benchmarks, Agari has been embraced by numerous Global 2000 organizations to enhance their protection measures. This comprehensive approach ensures that users are better equipped to navigate the complexities of modern email security challenges.
  • 8
    DuoCircle Reviews
    Dependable and safe email hosting solutions for both small to medium-sized businesses and large enterprises. We manage the secure processing of over 100 million emails each month for our clients. Our services include enhanced gateway security, robust filtering systems, inbound email protection, email service backups, and outbound SMTP, all built on a cutting-edge infrastructure to deliver the high-quality results our clients expect. Our offerings encompass a secure email gateway, backup MX services, email forwarding, outbound SMTP, and various additional features. DuoCircle provides robust protection against phishing attempts through its Link Click Protection, which is integrated into the Advanced Threat Defense Suite. This feature ensures that even if the content of a website changes between clicks, you remain protected from potential threats. With Link Click Protection, your sensitive corporate information is safeguarded, as employees are blocked from accessing sites that could exploit such data. Additionally, you receive immediate alerts when a suspicious link is about to be clicked, ensuring your security remains a top priority. Overall, our comprehensive email security solutions enhance the safety of your communications and provide peace of mind for your organization.
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