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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. It demonstrates exceptional attention to prompt-injection hardening through careful input sanitization, output fencing, and deliberate architectural constraints (e.g., no BCC field, read-only Sieve access, capability gating). Credentials are properly managed through environment variables, and sensitive operations are appropriately guarded. Minor code quality observations around error handling and logging do not materially impact security. 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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