Relentless Protection
    Starts Here

    Cyberattacks don’t stop at your email perimeter.
    Your security can’t either.

    scroll down

    Corporate Social Responsibility Report

    See how Mimecast is integrating sustainability into our business model and supporting community resilience.

    Learn More

    State of Email Security 2021

    In 2020, when most organizations saw crisis, cybercriminals saw opportunity. Learn how to secure the enterprise in the COVID world.

    Read Report


    Grab a seat at the CISO table to learn about managing AI risk against privacy fears.

    Learn More

    Forrester TEI report

    Learn about cost savings and business benefits enabled by using Mimecast with Microsoft 365.

    Read Report


    Mimecast named 6x leader in the Enterprise Information Archiving Magic Quadrant.

    Read Report

    Cyber Resilience Insights

    Get the latest cybersecurity trends, insights, and perspectives.

    Visit our blog


    Learn how to improve security with low-effort, high-impact API integrations.

    Get Resources

    Stop current threats before they affect your business

    Multi-vector attacks, phishing, BEC, insider threats, and brand impersonation require a pervasive security strategy.


    Block Ransomware


    Stop Business Email Compromise


    Prevent Data Loss


    End Supply Chain Impersonation Attacks


    Eliminate Brand Exploitation

    See Solution Demos

    The Power Of The Mimecast Platform

    Cloud native, fully integrated, and API-enabled.

    Explore Platform

    Business Email Compromise

    Stop malware, credential harvesting, and impersonation attacks dead in their tracks.

    View product tour

    Insider Risk

    Protect internal communication tools and make employees more security savvy.

    View product tour

    Supply Chain Protection

    Find and neutralize brand impersonation attacks before they’re unleashed.

    View product tour

    70+ Integrations

    for Automation and Orchestration.


    Trusted by 39,000+ organizations

    Mimecast is proud to support tens of thousands of organizations globally, including over 20,000 who rely on us to secure Microsoft 365.

    See their stories