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Mail Threat Zero - Email Flow Diagram

See how Mail Threat Zero protects your email infrastructure with multi-layered security filtering

📧 External Sender Internet / Attacker SMTP ⚡ Mail Threat Zero ⚡ Security Gateway Multi-Layer Scanning → 🛡️ RBL • SPF • DKIM • DMARC 🦠 ClamAV • SpamAssassin • AI Analysis ✓ Clean? Threat Detected 🔒 Quarantine Blocked / Held Admin Review ✓ Clean ✓ Validated Email Passed All Filters Safe to Deliver Forward 📬 Your Mail Server Exchange / Gmail Office 365 / On-Prem Internal Delivery Deliver 👥 Your Users Protected Inboxes ✅ 🛡️ Security Filter Breakdown 🌐 Connection Layer: • RBL/DNSBL Checking • IP Reputation Analysis • GeoIP Filtering • Rate Limiting 📧 Authentication: • SPF Verification • DKIM Signature Check • DMARC Policy • Sender Validation 🦠 Content Scanning: • ClamAV Antivirus • SpamAssassin Filtering • Attachment Analysis • URL/Link Checking 🤖 AI Analysis (Optional): • GPT-4o Mini • Claude 3 Haiku • Phishing Detection • BEC Prevention ⚡ Processing Stats Scan Time: {"<"}2 seconds Threat Detection: 98.5% False Positives: {"<"}0.01% Email Types: All SMTP ✓ Spam Filtering ✓ Virus/Malware Block ✓ Phishing Prevention

1. Incoming Email

External senders connect via SMTP. Mail Threat Zero intercepts all incoming mail before it reaches your server.

2. Multi-Layer Scanning

Every email passes through 10+ security filters including RBL, SPF/DKIM/DMARC, antivirus, spam filtering, and optional AI analysis.

3. Threat Decision

Clean emails are forwarded to your mail server. Suspicious or malicious emails are quarantined for admin review.

4. Protected Delivery

Only validated, safe emails reach your users' inboxes. Your organization stays protected from email-borne threats.