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mcp/harbor
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echo.email Deliverability Test MCP

v1.1.0

email.echo/deliverability

Send a test email, get SPF, DKIM, DMARC, TLS and IPv6 results plus sender rules. No key.

transport:streamable-http tools:3
Website

Target client

run in your project directory 

claude mcp add --transport http deliverability https://mcp.echo.email/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

create_test_address Mutating

create test address

wait_for_report

wait for report

get_report Read-only

get report

All 3 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.