Best Secure Email Gateway Software for Zimbra

Find and compare the best Secure Email Gateway software for Zimbra in 2026

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

  • 1
    N-able Mail Assure Reviews
    Top Pick
    N-able Mail Assure, a cloud-based email security system, provides advanced threat protection for both inbound and outbound emails using collective threat intelligence, long-term email archive, and 24/7 email continuity. The service offers multi-tenant web-interfaces with predefined settings, reporting and views that allow for control and visibility over all email flows. N-able Mail Assure's proprietary technology uses input from large volumes of email data to feed the Intelligent Protection and Filtering engine. This, combined with real-time pattern threat detection leveraging a variety if filtering technologies, helps protect against spam, viruses and phishing attacks as well as impersonation, malware and other email-borne threats.
  • 2
    PhishProtection Reviews

    PhishProtection

    DuoCircle

    $100/month/user
    Make the smartest investment today to reduce email security threats. Get a comprehensive email security solution for small businesses at small business pricing. Cybercriminals are targeting CEOs and CFOs in every industry, as well as HR, Accounting, and HR departments. Office 365 has very limited protection options to prevent impersonations, email fraud, and phishing. You can only create so many custom transport rules to block domains and protect against employee impersonations. PhishProtection is compatible with every email server, device, and smtp service. We can protect you no matter where you are, whether you're on your phone, outlook, or any other email client. It provides the best security for both Android and iOS devices.
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