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imap-mcp-server

A powerful Model Context Protocol (MCP) server for IMAP email integration with Claude

→ nikolausm/imap-mcp-server· listed on github_topic
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// key findings
🚨
Secret credentials may flow to a network call
1 flow detected: IPQUALITYSCORE_API_KEY. We can’t prove the destination matches the brand the credential belongs to.
🔐
You'll be asked for 1 credential: IPQUALITYSCORE_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies4 low

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

lowbody-parser@2.2.0GHSA-wqch-xfxh-vrr4

body-parser is vulnerable to denial of service when url encoding is used

lownodemailer@8.0.5GHSA-268h-hp4c-crq3

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

lownodemailer@8.0.5GHSA-r7g4-qg5f-qqm2

Nodemailer: Improper TLS Certificate Validation in OAuth2 Token Fetch Enables Credential Interception

lownodemailer@8.0.5GHSA-wqvq-jvpq-h66f

Nodemailer jsonTransport bypasses disableFileAccess and disableUrlAccess during message normalization

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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.
configIMAP_DOWNLOAD_DIR
configIMAP_MAX_UPLOAD_SIZE
configIMAP_SPAM_DOMAINS
configIMAP_UPLOAD_TTL_MS
configIMAP_WHITELIST_DOMAINS
🔐 secretIPQUALITYSCORE_API_KEY
configPORT
// 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 6 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/nikolausm-imap-mcp-server-x9qr8q)](https://m8ven.ai/mcp/nikolausm-imap-mcp-server-x9qr8q)
commit: b41df9a75e024c4521716366e80c0af4dddbc1cf
code hash: f649ba448d6387843035b75df5a068f5f8fa447b2d43ad3f859f0b41a056add9
verified: 6/18/2026, 10:33:53 AM
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