Back to MCP Trust Indexm8ven
C
Emerging
74/100
8 days ago

mcp-email-server

Provides IMAP and SMTP capabilities, enabling developers to manage email services with seamless integration and automated workflows.

→ ai-zerolab/mcp-email-server· listed on modelscope

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

Code Verified⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

ai-zerolab

Source: modelscope · also listed on github_topic, mcp.so, PulseMCP

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// key findings
✅
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 3 credentials: MCP_EMAIL_SERVER_PASSWORD, MCP_EMAIL_SERVER_SMTP_PASSWORD, MCP_EMAIL_SERVER_IMAP_PASSWORD
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configMCP_EMAIL_SERVER_CONFIG_PATH
configMCP_ENABLE_DNS_REBINDING_PROTECTION
configMCP_ALLOWED_HOSTS
configMCP_ALLOWED_ORIGINS
configMCP_HOST
configMCP_PORT
configMCP_EMAIL_SERVER_CREDENTIAL_STORAGE
configMCP_EMAIL_SERVER_ENABLE_ATTACHMENT_DOWNLOAD
configMCP_EMAIL_SERVER_REPORT_BLOCKED_MUTATIONS
configMCP_EMAIL_SERVER_ALLOWED_RECIPIENTS
configMCP_EMAIL_SERVER_ALLOWED_SENDERS
configMCP_EMAIL_SERVER_EMAIL_ADDRESS
🔐 secretMCP_EMAIL_SERVER_PASSWORD
configMCP_EMAIL_SERVER_ACCOUNT_NAME
configMCP_EMAIL_SERVER_FULL_NAME
configMCP_EMAIL_SERVER_USER_NAME
configMCP_EMAIL_SERVER_IMAP_HOST
configMCP_EMAIL_SERVER_SMTP_HOST
configMCP_EMAIL_SERVER_IMAP_PORT
configMCP_EMAIL_SERVER_IMAP_SSL
configMCP_EMAIL_SERVER_IMAP_START_SSL
configMCP_EMAIL_SERVER_IMAP_VERIFY_SSL
configMCP_EMAIL_SERVER_SMTP_PORT
configMCP_EMAIL_SERVER_SMTP_SSL
configMCP_EMAIL_SERVER_SMTP_START_SSL
configMCP_EMAIL_SERVER_SMTP_VERIFY_SSL
configMCP_EMAIL_SERVER_SMTP_USER_NAME
🔐 secretMCP_EMAIL_SERVER_SMTP_PASSWORD
configMCP_EMAIL_SERVER_IMAP_USER_NAME
🔐 secretMCP_EMAIL_SERVER_IMAP_PASSWORD
configMCP_EMAIL_SERVER_SAVE_TO_SENT
configMCP_EMAIL_SERVER_SENT_FOLDER_NAME
configMCP_EMAIL_SERVER_LOG_LEVEL
configLOGURU_LEVEL
configMCP_EMAIL_SERVER_E2E_KEYRING_PATH
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

14/14 tools missing one or more hints — list_available_accounts (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_emails_metadata (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_emails_content (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +11 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Secrets not logged

1 secret value sent to console.log

Redact or omit secret values from log output.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// 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/ai-zerolab-mcp-email-server-v5r2a4)](https://m8ven.ai/mcp/ai-zerolab-mcp-email-server-v5r2a4)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: a1668a912db08373cc109b7482363129c75fd646
code hash: 6418ca861fdeb3b65de5954a8cebeaf143c6eba447e8a3f590574a4967f71c09
verified: 8/13/2026, 9:03:24 PM
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