Any tools to generate chatgpt sales email with validation step?

I want to send a call to action to my users after they've accumulated some usage during the trial period. I'd like to use chatgpt to generate the email, but I absolutely need to validate and possibly edit the content before sending. Is there such a tool available ?
The workflow would be:

• user hits the pre-requisite (almost reached the end of the trial)
• my code gathers data and generates an email with chatgpt
• it goes into some kind of web interface, waiting in the queue for me to review
• if i'm satisfied, fire off the email, otherwise make some edits then fire.