owa-mail-mcp (mainpart/owa-mail-mcp) is an MCP server listed on the M8ven Trust Index. It scores 69 out of 100, grade C. It declares 24 tools. No publisher has claimed this listing.

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C
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69/100

owa-mail-mcp

MCP server for corporate Exchange that provides access to email, calendar, and people directory via OWA JSON API.

→ mainpart/owa-mail-mcp· listed on glama

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.

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Who stands behind it

mainpart

Source: Glama

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
✅
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: EXCHANGE_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.
configEXCHANGE_LOG_LEVELINFO уровень логов (в stderr)
configEXCHANGE_COOKIE_FILE~/.config/owa-mail-mcp/cookies кэш сессии (0600), пишется сервером
configEXCHANGE_ATTACHMENT_DIR/tmp/attachments куда сохраняются вложения
configMCP_TRANSPORT/ MCP_HOST / MCP_PORT stdio транспорт
configMCP_HOSTMCP_TRANSPORT / / MCP_PORT stdio транспорт
configMCP_PORTMCP_TRANSPORT / MCP_HOST / stdio транспорт
configEXCHANGE_TIME_ZONERussian Standard Time Windows-зона для TimeZoneContext
configEXCHANGE_OWA_URL
configEXCHANGE_USERNAME"": "DOMAIN\\user",
🔐 secretEXCHANGE_PASSWORDда — пароль
configEXCHANGE_VERIFY_SSLfalse true — строгая проверка TLS
// 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

24/24 tools missing one or more hints — check_auth (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_folders (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); find_emails (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +21 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

22/24 tool handlers declare input schemas (92%)

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

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

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.
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commit: c1fae8be4695263bba738b4a45144560b17d4e70
code hash: 8a584ae156fbb427577309c99295b0fb6fe090488cabd909debdb26eef5c64d0
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