Sebastian

SecZim - SecZim is an email security policy server for Zimbra

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SecZim is a policy server for Zimbra and Postfix that enforces security rules at the SMTP layer — SPF checks, geo filters, greylisting, rate limits, and adaptive blacklisting — blocking threats before they reach your mail server. A web dashboard lets you monitor traffic in real time and apply policies in a few clicks. No changes to your existing infrastructure required.

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Sebastian
Maker
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Hey everyone! 👋 I'm the maker of Seczim. After years working with Zimbra and Postfix environments, I kept seeing the same problem: sysadmins spending hours manually hardening their mail servers, dealing with spam floods, brute-force attacks, and misconfigurations that leave critical vulnerabilities exposed. That's why I built Seczim — a security-focused SaaS designed specifically for Zimbra and Postfix. No more generic security tools that barely understand your mail stack. What Seczim does: 🔐 Real-time threat monitoring tailored for Zimbra & Postfix 🛡️ Automated hardening and security best practices 📊 Clear dashboards so you know exactly where you stand 📧 Mail quota management per account — control sending limits easily 🌍 Geo filtering — block or allow traffic by country 🚫 Blacklist management — add or remove known blacklists (Spamhaus, Barracuda, etc.) with a few clicks ⚡ Quick setup — protect your mail server in minutes, not days 👉 Want to see it in action? Check out our live demo with sample data at https://demo.seczim.com — no signup required! I'd love to hear your feedback, especially from fellow sysadmins managing mail infrastructure. What's your biggest security headache with Zimbra or Postfix? AMA! 🚀