yahoo-mail-mcp (th-an/yahoo-mail-mcp) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it yet. 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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1 month ago

yahoo-mail-mcp

MCP server for Yahoo Mail over IMAP+SMTP that enables AI assistants to manage emails fully—listing, reading, searching, threading, flagging, moving, archiving, handling attachments, and sending/reply/forward/draft—using an app-specific password.

→ th-an/yahoo-mail-mcp· listed on glama

How we verified

Code Verified⚡ Live Monitored

Monitored 14 days · every push re-verified

Who stands behind it

outlook.com (@th-an) · Verified Publisher

Source: Glama

Install from

Glama

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

⚠ Last scoring attempt failed: Repository is private or does not exist. M8ven only verifies public MCPs — make the repo public or contact support@m8ven.ai.
// 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: MCP_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.
🔐 secretMCP_TOKEN
configMCP_URL"": "https://YOUR-SERVICE-REGION.run.app/"
configYAHOO_IMAP_HOSTOptional overrides: , YAHOO_IMAP_PORT, YAHOO_SMTP_HOST,
configYAHOO_IMAP_PORTOptional overrides: YAHOO_IMAP_HOST, , YAHOO_SMTP_HOST,
configYAHOO_MCP_URL
configYAHOO_SMTP_HOSTOptional overrides: YAHOO_IMAP_HOST, YAHOO_IMAP_PORT, ,
configYAHOO_SMTP_PORT(465 for implicit TLS), YAHOO_MCP_HOST, YAHOO_MCP_PORT,
Deployment configuration, supplied by whoever hosts the server. Users are not asked for these.
deployPORT
// 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

31/31 tools missing one or more hints — list_folders (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_emails (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); read_email (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +28 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

24/27 tool handlers declare input schemas (89%)

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

Tool handlers catch errors

Only 0/27 tool handlers wrap calls in try/catch (0%)

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

// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/th-an/yahoo-mail-mcp)](https://m8ven.ai/mcp/th-an/yahoo-mail-mcp)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: fc07c9240d64332f1c621740eadc84fad2817c75
code hash: ade38cd96fe495360fba877876dfa227dd04bc7e34d4d0e819811f72adcbe49b
verified: 8/10/2026, 7:57:15 AM
view raw JSON →
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