forked from rsp2k/mcp-mailu
Add comprehensive security automation tools
- Implement auto_configure_domain_security tool for complete domain security setup - Add analyze_domain_security tool for security analysis and scoring - Generate DKIM keys, extract DNS records, and provide security recommendations - Calculate security scores based on DKIM, SPF, DMARC, and TLSA configurations - Version bump to 0.3.0 for security enhancements 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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@ -1378,6 +1378,255 @@ def create_mcp_server() -> FastMCP:
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except Exception as e:
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return f"Error generating DKIM keys: {e}"
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@mcp.tool()
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async def auto_configure_domain_security(domain: str) -> str:
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"""Auto-configure complete domain security: DKIM, SPF, DMARC with DNS records."""
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try:
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async with client as mailu_client:
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# Step 1: Generate DKIM keys
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dkim_response = await mailu_client.post(f"/domain/{domain}/dkim")
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dkim_response.raise_for_status()
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# Step 2: Get updated domain info with DNS records
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domain_response = await mailu_client.get(f"/domain/{domain}")
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domain_response.raise_for_status()
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domain_data = domain_response.json()
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# Step 3: Extract and format DNS records
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dns_records = []
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security_config = {
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"domain": domain,
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"dkim_generated": True,
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"dns_records": [],
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"security_recommendations": []
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}
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# MX Record
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if "dns_mx" in domain_data and domain_data["dns_mx"]:
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mx_record = domain_data["dns_mx"]
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dns_records.append({
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"type": "MX",
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"record": mx_record,
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"description": "Mail Exchange record - directs email to your mail server"
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})
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# SPF Record
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if "dns_spf" in domain_data and domain_data["dns_spf"]:
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spf_record = domain_data["dns_spf"]
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dns_records.append({
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"type": "SPF",
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"record": spf_record,
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"description": "Sender Policy Framework - prevents email spoofing"
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})
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# DKIM Record
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if "dns_dkim" in domain_data and domain_data["dns_dkim"]:
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dkim_record = domain_data["dns_dkim"]
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dns_records.append({
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"type": "DKIM",
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"record": dkim_record,
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"description": "DomainKeys Identified Mail - cryptographic email authentication"
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})
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# DMARC Record
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if "dns_dmarc" in domain_data and domain_data["dns_dmarc"]:
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dmarc_record = domain_data["dns_dmarc"]
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dns_records.append({
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"type": "DMARC",
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"record": dmarc_record,
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"description": "Domain-based Message Authentication - email security policy"
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})
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# DMARC Report Record
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if "dns_dmarc_report" in domain_data and domain_data["dns_dmarc_report"]:
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dmarc_report_record = domain_data["dns_dmarc_report"]
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dns_records.append({
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"type": "DMARC Report",
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"record": dmarc_report_record,
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"description": "DMARC reporting configuration"
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})
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# TLSA Record (for DANE)
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if "dns_tlsa" in domain_data and domain_data["dns_tlsa"]:
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tlsa_record = domain_data["dns_tlsa"]
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dns_records.append({
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"type": "TLSA",
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"record": tlsa_record,
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"description": "Transport Layer Security Authentication - DANE support"
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})
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# Autoconfig Records
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if "dns_autoconfig" in domain_data and domain_data["dns_autoconfig"]:
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for autoconfig_record in domain_data["dns_autoconfig"]:
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if autoconfig_record.strip():
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dns_records.append({
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"type": "Autoconfig",
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"record": autoconfig_record,
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"description": "Email client auto-configuration"
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})
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security_config["dns_records"] = dns_records
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# Step 4: Generate security recommendations
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recommendations = []
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# Check if all security records are present
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has_spf = any(record["type"] == "SPF" for record in dns_records)
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has_dkim = any(record["type"] == "DKIM" for record in dns_records)
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has_dmarc = any(record["type"] == "DMARC" for record in dns_records)
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has_tlsa = any(record["type"] == "TLSA" for record in dns_records)
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if has_spf and has_dkim and has_dmarc:
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recommendations.append("✅ Complete email security configuration: SPF, DKIM, and DMARC are all configured")
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else:
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if not has_spf:
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recommendations.append("⚠️ SPF record missing - configure to prevent email spoofing")
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if not has_dkim:
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recommendations.append("⚠️ DKIM record missing - run generate_dkim_keys tool")
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if not has_dmarc:
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recommendations.append("⚠️ DMARC record missing - provides email authentication policy")
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if has_tlsa:
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recommendations.append("✅ DANE/TLSA configured for enhanced transport security")
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else:
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recommendations.append("💡 Consider adding TLSA records for DANE transport security")
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# Check autoconfig
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has_autoconfig = any(record["type"] == "Autoconfig" for record in dns_records)
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if has_autoconfig:
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recommendations.append("✅ Email client auto-configuration is enabled")
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else:
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recommendations.append("💡 Email client auto-configuration records are available")
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security_config["security_recommendations"] = recommendations
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# Step 5: Format comprehensive response
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result = {
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"success": True,
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"message": f"Domain security auto-configuration completed for {domain}",
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"actions_taken": [
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"Generated DKIM keys",
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"Retrieved all DNS security records",
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"Analyzed security configuration",
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"Generated implementation recommendations"
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],
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"configuration": security_config,
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"next_steps": [
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"Add the DNS records to your domain's DNS zone",
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"Wait for DNS propagation (24-48 hours)",
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"Test email delivery and authentication",
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"Monitor DMARC reports for any issues"
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]
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}
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return json.dumps(result, indent=2)
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except Exception as e:
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return f"Error auto-configuring domain security: {e}"
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@mcp.tool()
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async def analyze_domain_security(domain: str) -> str:
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"""Analyze current domain security configuration without making changes."""
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try:
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async with client as mailu_client:
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# Get domain info with DNS records
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domain_response = await mailu_client.get(f"/domain/{domain}")
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domain_response.raise_for_status()
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domain_data = domain_response.json()
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# Security analysis
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security_analysis = {
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"domain": domain,
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"security_status": {},
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"vulnerabilities": [],
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"recommendations": [],
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"dns_records_found": []
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}
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# Check for each security component
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has_mx = bool(domain_data.get("dns_mx"))
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has_spf = bool(domain_data.get("dns_spf"))
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has_dkim = bool(domain_data.get("dns_dkim"))
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has_dmarc = bool(domain_data.get("dns_dmarc"))
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has_tlsa = bool(domain_data.get("dns_tlsa"))
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has_autoconfig = bool(domain_data.get("dns_autoconfig"))
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security_analysis["security_status"] = {
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"mx_record": "✅ Configured" if has_mx else "❌ Missing",
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"spf_record": "✅ Configured" if has_spf else "❌ Missing",
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"dkim_record": "✅ Configured" if has_dkim else "❌ Missing",
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"dmarc_record": "✅ Configured" if has_dmarc else "❌ Missing",
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"tlsa_record": "✅ Configured" if has_tlsa else "⚠️ Optional",
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"autoconfig": "✅ Configured" if has_autoconfig else "⚠️ Optional"
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}
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# Calculate security score
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required_components = [has_mx, has_spf, has_dkim, has_dmarc]
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security_score = sum(required_components) / len(required_components) * 100
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# Identify vulnerabilities and recommendations
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if not has_mx:
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security_analysis["vulnerabilities"].append("🚨 CRITICAL: No MX record - email delivery will fail")
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security_analysis["recommendations"].append("Configure MX record immediately")
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if not has_spf:
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security_analysis["vulnerabilities"].append("🚨 HIGH: No SPF record - email spoofing possible")
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security_analysis["recommendations"].append("Add SPF record to prevent spoofing")
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if not has_dkim:
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security_analysis["vulnerabilities"].append("🚨 HIGH: No DKIM record - email authentication weak")
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security_analysis["recommendations"].append("Generate DKIM keys and add DNS record")
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if not has_dmarc:
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security_analysis["vulnerabilities"].append("🚨 MEDIUM: No DMARC record - no email policy enforcement")
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security_analysis["recommendations"].append("Configure DMARC policy for email protection")
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if not has_tlsa:
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security_analysis["recommendations"].append("💡 Consider TLSA records for enhanced transport security (DANE)")
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if not has_autoconfig:
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security_analysis["recommendations"].append("💡 Consider adding autoconfig records for easier email client setup")
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# Add found DNS records
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if has_mx:
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security_analysis["dns_records_found"].append(f"MX: {domain_data['dns_mx']}")
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if has_spf:
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security_analysis["dns_records_found"].append(f"SPF: {domain_data['dns_spf']}")
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if has_dkim:
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security_analysis["dns_records_found"].append(f"DKIM: {domain_data['dns_dkim']}")
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if has_dmarc:
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security_analysis["dns_records_found"].append(f"DMARC: {domain_data['dns_dmarc']}")
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if has_tlsa:
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security_analysis["dns_records_found"].append(f"TLSA: {domain_data['dns_tlsa']}")
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# Overall assessment
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if security_score == 100:
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security_level = "🟢 EXCELLENT"
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summary = "All critical security components are configured"
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elif security_score >= 75:
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security_level = "🟡 GOOD"
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summary = "Most security components configured, minor improvements needed"
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elif security_score >= 50:
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security_level = "🟠 MODERATE"
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summary = "Basic security configured, significant improvements recommended"
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else:
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security_level = "🔴 CRITICAL"
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summary = "Major security vulnerabilities present, immediate action required"
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result = {
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"domain": domain,
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"security_level": security_level,
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"security_score": f"{security_score:.1f}%",
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"summary": summary,
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"analysis": security_analysis,
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"quick_fix": "Run auto_configure_domain_security() to automatically fix all issues"
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}
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return json.dumps(result, indent=2)
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except Exception as e:
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return f"Error analyzing domain security: {e}"
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# ===== DOMAIN MANAGER TOOLS =====
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