mcp-email-server (Wh1isper/mcp-email-server) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 14 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Limited view
74/100
2 months ago

mcp-email-server

Full-featured, multi-account MCP email server for Windows, macOS, and Linux—read, search, organize, and send email via IMAP and SMTP.

→ Wh1isper/mcp-email-server· listed on mcp_so

Limited view. Automated analysis covers part of this stack. Findings reflect what we verified. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

Limited view: static analysis for Python is partially covered.

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

Wh1isper

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

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. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

⚡ Connect GitHub for Live Monitored

Install from

mcp.soGitHubmodelscopePulseMCP

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

// 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_ENABLE_DNS_REBINDING_PROTECTIONEnable DNS rebinding protection true
configMCP_ALLOWED_HOSTSComma-separated allowed Host values. Supports host: ports Localhost hosts
configMCP_ALLOWED_ORIGINSComma-separated allowed Origin values. Supports host: ports Localhost origins
configMCP_HOSTHTTP bind host for streamable-http localhost
configMCP_PORTHTTP bind port for streamable-http 9557
configMCP_EMAIL_SERVER_CONFIG_PATH
configMCP_EMAIL_SERVER_EMAIL_ADDRESS"": "john@example.com",
🔐 secretMCP_EMAIL_SERVER_PASSWORD"": "your_password",
configMCP_EMAIL_SERVER_ACCOUNT_NAME"": "work",
configMCP_EMAIL_SERVER_FULL_NAME"": "John Doe",
configMCP_EMAIL_SERVER_USER_NAME"": "john@example.com",
configMCP_EMAIL_SERVER_IMAP_HOST"": "imap.gmail.com",
configMCP_EMAIL_SERVER_SMTP_HOST"": "smtp.gmail.com",
configMCP_EMAIL_SERVER_IMAP_PORT"": "993",
configMCP_EMAIL_SERVER_IMAP_SSLEnable IMAP SSL true No
configMCP_EMAIL_SERVER_IMAP_START_SSLEnable IMAP STARTTLS false No
configMCP_EMAIL_SERVER_IMAP_VERIFY_SSLVerify IMAP SSL certificates (disable for self-signed) true No
configMCP_EMAIL_SERVER_SMTP_PORTSMTP server port 465 No
configMCP_EMAIL_SERVER_SMTP_SSLEnable SMTP SSL true No
configMCP_EMAIL_SERVER_SMTP_START_SSLEnable STARTTLS false No
configMCP_EMAIL_SERVER_SMTP_VERIFY_SSLVerify SSL certificates (disable for self-signed) true No
configMCP_EMAIL_SERVER_SMTP_USER_NAME/ MCP_EMAIL_SERVER_SMTP_PASSWORD
🔐 secretMCP_EMAIL_SERVER_SMTP_PASSWORDMCP_EMAIL_SERVER_SMTP_USER_NAME /
configMCP_EMAIL_SERVER_IMAP_USER_NAME/ MCP_EMAIL_SERVER_IMAP_PASSWORD
🔐 secretMCP_EMAIL_SERVER_IMAP_PASSWORDMCP_EMAIL_SERVER_IMAP_USER_NAME /
configMCP_EMAIL_SERVER_SAVE_TO_SENTSave sent emails to IMAP Sent folder true No
configMCP_EMAIL_SERVER_SENT_FOLDER_NAMECustom Sent folder name (auto-detect if not set) - No
configMCP_EMAIL_SERVER_ENABLE_ATTACHMENT_DOWNLOADEnable attachment download false No
configMCP_EMAIL_SERVER_ALLOWED_RECIPIENTSRecipient allowlist (comma-separated); empty = all - No
configMCP_EMAIL_SERVER_ALLOWED_SENDERSSender allowlist (comma-separated globs); empty = all - No
configMCP_EMAIL_SERVER_LOG_LEVEL
configLOGURU_LEVEL
// 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); add_email_account (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_emails_metadata (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.

Tool inputs are validated

11/14 tool handlers declare input schemas (79%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tool handlers catch errors

Only 0/14 tool handlers wrap calls in try/catch (0%)

Wrap each tool handler body in try/catch and return a structured error response.

Tests exist

No test files found

Add tests that exercise each declared tool.

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 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/wh1isper/mcp-email-server)](https://m8ven.ai/mcp/wh1isper/mcp-email-server)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: c159c7797242d82e413a68e42b3b0a317a8ed97c
code hash: 1e1899d124df22799ebf7a88dea4805ba1747ccf632d56256f2b9b710c605878
verified: 7/3/2026, 9:56:34 AM
view raw JSON →
Check MCPs from inside your assistant
Tool Check · MCP

Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.

https://m8ven.ai/api/mcp/tool-check
check_toolsearch_toolscompare_toolsrecommend_alternativescheck_publisherreport_concern
How to add it →Free · no account needed · works in any MCP client