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Read-focused, prompt-injection-hardened email MCP server for any IMAP provider
About
Read-focused, prompt-injection-hardened email MCP server for any IMAP provider
Security Report
pylos-mcp is a well-architected email MCP server with strong security fundamentals. Authentication is properly scoped using environment variables (no hardcoded credentials), capabilities follow a conservative default-off model for risky operations, and extensive prompt-injection defenses (fencing, HTML stripping, hidden character removal) are built into the core architecture. The codebase demonstrates mature security thinking with comprehensive input validation, error handling that sanitizes sensitive data, and a clear separation of concerns. Minor findings around error handling breadth and logging specificity do not materially affect the security posture. Supply chain analysis found 7 known vulnerabilities in dependencies (2 critical, 4 high severity). Package verification found 1 issue.
4 files analyzed · 11 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
Environment variable: EMAIL_USER
Environment variable: EMAIL_PASSWORD
Environment variable: PROVIDER
Environment variable: IMAP_HOST
Environment variable: CAPABILITIES
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-adamvass-pylos-mcp": {
"env": {
"PROVIDER": "your-provider-here",
"IMAP_HOST": "your-imap-host-here",
"EMAIL_USER": "your-email-user-here",
"CAPABILITIES": "your-capabilities-here",
"EMAIL_PASSWORD": "your-email-password-here"
},
"args": [
"-y",
"pylos-mcp"
],
"command": "npx"
}
}
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