mail-mcp (MauricioPerera/mail-mcp) is an MCP server listed on the M8ven Trust Index. It scores 88 out of 100, grade B. It declares 13 tools. The publisher has proved control of what we score (Verified Publisher). It is connected through the M8ven GitHub App, so the listing is re-checked on every push.

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B
Emerging
88/100
6 days ago

mail-mcp

A self-hosted, multi-mailbox MCP server that exposes IMAP/SMTP operations as tools for AI agents, enabling email management like listing folders, reading, searching, sending, and moving messages via natural language.

→ MauricioPerera/mail-mcp· listed on glama

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

Monitored 7 days · every push re-verified

Who stands behind it

gmail.com (@MauricioPerera) · Verified Publisher

Source: Glama

Maintenance & responsiveness
as of 2026-08-20
Issues closed (90d): 0 · 0 open
Releases (90d): none
Active contributors (6mo): 2

Install from

Glama

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 1 credential: MAIL_MCP_API_TOKEN
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
Are you the publisher? Confirm or correct these findings.
// 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.
configMAIL_MCP_ACCOUNTS_PATH
🔐 secretMAIL_MCP_API_TOKENEvery REST and MCP request requires Authorization: Bearer <>.
configMAIL_MCP_MAX_MESSAGE_SIZE(default 25MB) are returned with bodyTruncated: true
configMAIL_MCP_PORTRuns on 127.0.0.1:4900 by default (see ). Put it behind a
configMAIL_MCP_WEBHOOKS_DB_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

13/13 tools missing one or more hints — list_mailboxes (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_folders (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_messages (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +10 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 test coverage

Only 0/13 tools referenced in tests (0%)

Write tests that reference each tool by name so every tool has at least one test.

// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/mauricioperera/mail-mcp)](https://m8ven.ai/mcp/mauricioperera/mail-mcp)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: 7ee71a746cdd3c2e1df1666a40dc9b826917e07b
code hash: 292faedd31b0814ace58220142401d7118429746875c5eb5804aa94f853c6779
verified: 9/4/2026, 1:41:10 AM
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