SuperMailbox for ChatGPT

io.github.hardtab/supermailbox

Gmail, iCloud, Outlook, Yahoo, Fastmail and IMAP email: search, read, draft and organize.

client:ChatGPT transport:streamable-http

Install SuperMailbox in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.supermailbox.app/mcp

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