/ 100

1 month ago

glama

Proton Mail Bridge MCP

Item: Proton Mail Bridge MCP
Rating: 64
Author: M8ven

Professional Proton Mail management with 20+ tools, advanced analytics, and seamless Proton Bridge integration.

→ googlarz/proton-mail-bridge-client · listed on glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find.

Install from

Glama

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings

⚠️

Known vulnerabilities in dependencies: 3 high

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

✅

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 2 credentials: PROTONMAIL_IMAP_PASSWORD, PROTONMAIL_PASSWORD

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

// known CVEs in dependencies3 high3 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.11.0GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.11.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.11.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

lowmailparser@3.7.1GHSA-7gmj-h9xc-mcxc

mailparser vulnerable to Cross-site Scripting

lownodemailer@8.0.3GHSA-c7w3-x93f-qmm8

Nodemailer has SMTP command injection due to unsanitized `envelope.size` parameter

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

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

configCLAUDE_DESKTOP_CONFIG_PATH

configPROTONMAIL_ALLOWED_ACTIONS— 'mark_read,archive,trash' # per-action allowlist

configPROTONMAIL_ALLOW_FILE_DOWNLOAD_DIR

configPROTONMAIL_ALLOW_REMOTE_DRAFT_SYNC

configPROTONMAIL_ALLOW_SEND— false # disable SMTP sends only (other writes still work)

configPROTONMAIL_ALLOW_UNSAFE_HTML

configPROTONMAIL_AUTO_SYNC

configPROTONMAIL_AUTO_SYNC_FOLDER

configPROTONMAIL_AUTO_SYNC_FULL

configPROTONMAIL_AUTO_SYNC_LIMIT_PER_FOLDER

configPROTONMAIL_CLAUDE_RUNTIME_DIR

configPROTONMAIL_DATA_DIR— "$HOME/.proton-mail-bridge-client"

configPROTONMAIL_DEBUG

configPROTONMAIL_IDLE_MAX_SECONDS

configPROTONMAIL_IDLE_WATCH

configPROTONMAIL_IMAP_HOST— "": "127.0.0.1",

🔐 secretPROTONMAIL_IMAP_PASSWORD

configPROTONMAIL_IMAP_PORT— "": "1143",

configPROTONMAIL_IMAP_USERNAME

🔐 secretPROTONMAIL_PASSWORD— "": "your-bridge-password",

configPROTONMAIL_PASSWORD_COMMAND— "": "pass proton/password",

configPROTONMAIL_PASSWORD_FILE— "": "/path/to/password.txt",

configPROTONMAIL_READ_ONLY— true # disable all write operations

configPROTONMAIL_SMOKE_ALLOW_MUTATIONS

configPROTONMAIL_SMOKE_FORWARD_TO

configPROTONMAIL_SMOKE_MUTATION_EMAIL_ID

configPROTONMAIL_SMOKE_SELF_TO

configPROTONMAIL_SMTP_HOST— "": "127.0.0.1",

configPROTONMAIL_SMTP_PORT— "": "1025"

configPROTONMAIL_STARTUP_SYNC

configPROTONMAIL_SYNC_INTERVAL_MINUTES

configPROTONMAIL_TOOL_TIER— core # expose 20 core tools instead of all 76 — saves context window

configPROTONMAIL_USERNAME— "": "you@proton.me",

configPROTONMAIL_USERNAME_COMMAND— "": "pass proton/username",

configPROTONMAIL_USERNAME_FILE— "": "/path/to/username.txt",

// 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 3 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/googlarz-proton-mail-bridge-client-1kwb1t)](https://m8ven.ai/mcp/googlarz-proton-mail-bridge-client-1kwb1t)

commit: 9f9b1a9da662c6f198710482446ef13fec07ac5f

code hash: 8180e3e239bc394ebe057fe28b86c4db6cb53ad7d0fa39ebe2eb1c652fd1091e

verified: 6/11/2026, 11:13:01 AM

view raw JSON →