Trust Directory / report

Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun UNKNOWN

No anonymous handshake observed — endpoints behind authentication are expected to show this result; it does not mean the server is broken.

Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark

Registry name	`dev.workers.cybermax-tools.cybermax/send-email` (v1.0.1)
Endpoint	`https://mcp.apify.com/?tools=cybermax/send-email&via=mcp-registry`
Reported server	—
Protocol version	not negotiated
Tools exposed	unknown
Checked at	2026-10-11T03:36:03.281Z

Findings

UNKNOWN NO_RESPONSE — Endpoint did not complete MCP initialize + tools/list within timeout

Reproduce this report

npx @eidonze/mcpdoctor schema https://mcp.apify.com/?tools=cybermax/send-email&via=mcp-registry

Embed status: <img src="https://xka0085-byte.github.io/mcp-doctor/trust/badge/dev.workers.cybermax-tools.cybermax-send-email.svg"> · Machine-readable: /api/dev.workers.cybermax-tools.cybermax-send-email.json

Generated by mcpdoctor — read-only MCP initialize + tools/list. No tools were called, no payments attempted. Static schema checks do not predict model tool selection or prove behavior across all clients. Scanned: 2026-10-11.