Protect Your Infrastructure
Expert guides on securing Zimbra and Postfix from spam, phishing, and modern email threats.
Stop 99.9% of Spam Before It Reaches Your Inbox
Learn how real-time SMTP-level filtering blocks spam, phishing, and malicious emails before they consume server resources. The most effective way to protect your email infrastructure.
02 AuthenticationSPF Verification: First Line of Defense
Prevent email spoofing and protect domain reputation with automatic DNS verification.
03 ProtectionRate Limiting: Stop Email Floods
Prevent abuse, protect resources, and ensure fair delivery with intelligent limits.
04 SecurityGeographic Blocking: Eliminate Regional Threats
Block high-risk countries and reduce attack surface by up to 80%.
05 MonitoringReal-Time Monitoring: Complete Visibility
Watch every connection live. Detect threats instantly, respond immediately.
06 AutomationAuto-Blacklisting: AI-Powered Protection
Automatically block repeat offenders based on behavior patterns.
07 ComplianceSender Restrictions: Control Email Flow
Prevent data leaks by restricting who can send to external recipients.
08 ManagementGranular Policy Rules That Work
Complex rules made simple. Regex support, priority ordering, instant application.
09 AlertsInstant Alerts: Never Miss a Threat
Get notified via email, Slack, or webhook when threats are detected.