Proton Mail Bridge

Connect to Proton Mail via Bridge for IMAP and SMTP access with 13 email management tools.

→ iniciativas-alexendros/proton-mail-mcp · listed on pulsemcp

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// key findings

⚠️

Known vulnerabilities in dependencies: 3 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

13 tools verified — handlers match their declared behaviour

6 read-only tools verified — handlers contain no write/delete/exec

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 1 credential: PROTON_BRIDGE_PASS

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configMCP_ALLOWED_ORIGINS— Todas las variables se validan en arranque con Zod. En NODE_ENV=production, el servidor se niega a arrancar si está vacío (evita exposición accidental a cualquier origen).

configPROTON_BRIDGE_HOST

configPROTON_BRIDGE_IMAP_PORT

🔐 secretPROTON_BRIDGE_PASS— env =tu-bridge-password \

configPROTON_BRIDGE_SMTP_PORT

configPROTON_BRIDGE_TLS_INSECURE— env =true \

configPROTON_BRIDGE_USER— env =tu@proton.me \

configPROTON_MAIL_FROM— env =tu@proton.me \

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/iniciativas-alexendros-proton-mail-mcp-1dkuei)](https://m8ven.ai/mcp/iniciativas-alexendros-proton-mail-mcp-1dkuei)

commit: 71d9757316cfa4479e99334d3d525724664e1767

code hash: 19fe4c839c5445463df798dca8d94c4c40900ee86dc54d95756dbccd240f6dbc

verified: 6/10/2026, 10:38:27 AM

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