Auto-Draft Professional Email Replies with Gmail, AI, and Slack

Description

What this workflow does

This workflow monitors your Gmail inbox for new, unreplied emails and automatically generates a professional reply draft using AI.
Instead of sending the email automatically, the draft is sent to Slack so a human can review and decide whether to send it.

This makes it ideal for teams that want to save time on email replies while keeping full control over outgoing communication.

How it works

Checks Gmail on a schedule for new, unreplied emails
Limits the number of emails processed per run to avoid overload
Extracts the email body and sends it to an AI model
Generates a polite, professional reply draft
Sends the draft to a Slack channel for review
Adds a Gmail label to prevent duplicate processing

Setup time

~10–15 minutes

Who this is for

Customer support teams
Freelancers and consultants
Small businesses handling frequent email inquiries
Anyone who wants AI-assisted email replies with human approval

Requirements

Gmail account
Slack workspace
OpenAI (or compatible AI) credentials