Email Verifier (SMTP, MX, Catch-All) for ChatGPT
io.github.sumitrmardy/email-verifier
Bulk email verification: live SMTP mailbox check, MX, catch-all, disposable and role detection.
client:ChatGPT
transport:streamable-http
Install Email Verifier (SMTP, MX, Catch-All) in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.apify.com/?tools=sumitr_mardy/email-verifier
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs