Email Deliverability Checker MCP

v0.1.0

io.github.kryptoscan/email-deliverability-mcp

Check SPF, DKIM, DMARC, blocklists, reverse DNS and email headers against Gmail/Yahoo sender rules.

transport:streamable-http tools:3

Target client

run in your project directory

claude mcp add --transport http email-deliverability-mcp https://api.ownmailserver.com/tools/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


                check_domain

Read-only

check domain


                check_sending_ip

Read-only

check sending ip


                check_email_headers

Read-only

check email headers

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.