receivemail.dev for ChatGPT

dev.receivemail/receivemail

Disposable email inboxes for agents and tests: create an address, wait for the email. No signup.

client:ChatGPT transport:streamable-http tools:3

Install receivemail.dev in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://receivemail.dev/mcp

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