- In your Mailpro account, on the AI Assistants (MCP) page, copy the server address.
- In ChatGPT, open the Apps settings and turn on developer mode (in a business workspace, the admin must allow it).
- Create an app from an MCP server, paste the address, sign in to Mailpro and accept the permissions.
- In Mailpro, set how ChatGPT sends: with approval or direct, with a daily cap.
ChatGPT's menus change often, and so do the plans that support these apps: see which plan you need. The full guide: ChatGPT and Mailpro.