Mailbox.org MCP Server

Integrates mailbox.org email and calendar services with Claude, enabling email search, composition, management, calendar access, and Sieve email filter configuration through a secure, locally-hosted interface.

→ soenkenils/mailbox-mcp-server · 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: 1 critical, 1 high

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

// known CVEs in dependencies1 critical1 high6 low

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

criticalvitest@4.0.17GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

high@modelcontextprotocol/sdk@1.25.3GHSA-345p-7cg4-v4c7

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

lowmailparser@3.9.1GHSA-7gmj-h9xc-mcxc

mailparser vulnerable to Cross-site Scripting

lownodemailer@7.0.12GHSA-268h-hp4c-crq3

Nodemailer: CRLF injection in Nodemailer List-* header comments allows arbitrary message header injection

lownodemailer@7.0.12GHSA-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 →

// 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/soenkenils-mailbox-mcp-server-oawnhs)](https://m8ven.ai/mcp/soenkenils-mailbox-mcp-server-oawnhs)

commit: e0e9b2e92411acee6233c74934927a3610d3c950

code hash: 65ff812c9241a1669a16c6723e6e4fb8e4fe1fe07351650c0e6338161063faab

verified: 6/18/2026, 11:16:00 AM

view raw JSON →