Mailsuite for ChatGPT

com.mailsuite/mcp

Email tracking for AI assistants: see who opened your emails and send tracked emails and follow-ups.

client:ChatGPT transport:streamable-http

Install Mailsuite in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.mailsuite.com

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs