MCP Email Server

Item: MCP Email Server
Rating: 60
Author: M8ven

An HTTP streaming MCP server for sending emails via Gmail using nodemailer, supporting HTML content and CC/BCC recipients.

→ jastill/GMailMailSenderCFDemo · listed on glama

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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.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

🔐

You'll be asked for 1 credential: GMAIL_PASSWORD

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

// known CVEs in dependencies3 high1 medium8 low

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

high@modelcontextprotocol/sdk@1.0.4GHSA-w48q-cv73-mx4w

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

highnodemailer@6.9.7GHSA-p6gq-j5cr-w38f

Nodemailer: Message-level raw option bypasses disableFileAccess/disableUrlAccess, enabling arbitrary file read and full-response SSRF in the delivered message

highnodemailer@6.9.7GHSA-rcmh-qjqh-p98v

Nodemailer’s addressparser is vulnerable to DoS caused by recursive calls

mediumnodemailer@6.9.7GHSA-mm7p-fcc7-pg87

Nodemailer: Email to an unintended domain can occur due to Interpretation Conflict

lowexpress@4.18.2GHSA-qw6h-vgh9-j6wx

express vulnerable to XSS via response.redirect()

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// required environment variables

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

🔐 secretGMAIL_PASSWORD— export =your-app-password

configGMAIL_USER— export =your-email@gmail.com

configPORT— export =3000

// 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 5 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/jastill-gmailmailsendercfdemo-0wr04b)](https://m8ven.ai/mcp/jastill-gmailmailsendercfdemo-0wr04b)

commit: 90cbf8c9b57b4aaf9f3cec769b42f838c39e0865

code hash: 1d5aa11e0074697e48c23e15dc18a424f2c56a0291520fa7f9d34016003e9631

verified: 7/25/2026, 8:37:29 AM

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