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Proofpoint provides cloud-based email security, e-discovery and compliance solutions for companies to protect sensitive business data.

Mimecast Gateway is a SaaS-based email security solution that uses sophisticated, multi-layered detection engines and intelligence to protect email data and employees from malware, spam, advanced threats and zero-day attacks.

Virtru is your data privacy force field, wrapping and protecting emails and files wherever they're shared. Easy-to-use data security software for business. People also askIs Virtru Hipaa compliant?

Symantec Email Security.cloud provides always-on, inbound and outbound email security against malware, targeted attacks, and advanced threats

Hornetsecurity offers you comprehensive, integrated managed e-mail security services.

Barracuda Essentials for Email Security is an easy-to-use cloud-based email security service.

Comprehensive Email Protection. 99.99% Spam Detection. Blocks phishing, viruses, malware and other email threats.

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Reflexion is a cloud-based email security, archiving, encryption, and continuity for managed service providers

FirstWave Cloud is a fully virtualised solution allowing telcos to deliver advanced cloud security solutions.

ZixMail provides end-to-end encryption to protect emails and attachments with a single click.

Securence is a managed spam service offering anti-spam and anti-virus filtering technologies.

Cisco Email Security protects against ransomware, business email compromise, spoofing, and phishing.