Checkmails — Email Verification for Claude.ai

eu.checkmails/checkmails

Verify email deliverability by SMTP. Catch-all/disposable/role detection. EU-hosted, GDPR-ready.

client:Claude.ai transport:streamable-http

Install Checkmails — Email Verification in Claude.ai

Settings → Connectors → Add custom connector

https://checkmails.eu/api/mcp

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

Checkmails — Email Verification in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

Checkmails — Email Verification MCP server