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GreatHorn is a cybersecurity company that helps organizations detect and prevent spear phishing and credential theft attacks automatically. The first and most powerful solution for stopping business email compromise, domain imposter, and whaling attacks, GreatHorn is natively integrated into Google Apps and Office 365, deploys in 15 minutes, and requires no changes to your existing mail routing or email gateway.
Guardian Digital builds enterprise email solutions with an intense focus on security and unrivaled customer support, designed to ease information technology overhead for its customers. Guardian Digital has created a security-as-a-service email protection model that blocks the most sophisticated threats to privacy and data integrity in your organization today.
Mimecast delivers cloud-based email management for Microsoft Exchange, including archiving, continuity and security. By unifying disparate and fragmented email environments into one holistic solution that is always available from the cloud, Mimecast minimizes risk and reduces cost and complexity, while providing total end-to-end control of email. Founded in the United Kingdom in 2003, Mimecast serves more than 7,000 customers and 1.7 million users worldwide and has offices in Europe, North America, Africa and the Channel Islands.
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