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mcp/harbor
Claude.ai

Email Verifier (SMTP, MX, Catch-All) for Claude.ai

io.github.sumitrmardy/email-verifier

Bulk email verification: live SMTP mailbox check, MX, catch-all, disposable and role detection.

client:Claude.ai transport:streamable-http

Install Email Verifier (SMTP, MX, Catch-All) in Claude.ai

Settings → Connectors → Add custom connector 

https://mcp.apify.com/?tools=sumitr_mardy/email-verifier

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

Email Verifier (SMTP, MX, Catch-All) in other clients

Email Verifier (SMTP, MX, Catch-All) MCP server