MAILTYPE — Email Domain Capability Intelligence for Claude Code

io.github.gsterlingpress/mailtype

Email-domain intelligence: MX capability, provider, disposable status, SPF, DMARC, and MTA-STS.

client:Claude Code transport:streamable-http

Install MAILTYPE — Email Domain Capability Intelligence in Claude Code

run in your project directory

claude mcp add --transport http mailtype https://mailtype-api.onrender.com/mcp

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