- Have a cron job that checks email from a certain sender (CRM?). - Instruct an OpenAI API session to say a magic word to reply to an e-mail: "To reply, say REPLY_123123_123123 followed by your message." - Pipe received email and decoded attachments as "We received the following e-mail: <content here>" to the OpenAI API. Make it a 1-click action to check if there is a reply and confirm sending the message. If it does not want to send a message, read its feedback.