Fastmail Email Auto-Reply with GPT-4

September 15, 2025

Aladuddin Aladin

This workflow connects your Fastmail inbox to GPT-4 and creates intelligent, automated email responses. Whenever a new message arrives, it triggers GPT-4 to generate a professional, context-aware reply and sends it back through Fastmail—saving you time and keeping your communication efficient and polished. Ideal for managing high email volume, ensuring quick responses, or even maintaining a consistent writing style without the manual effort.

Features:

  1. Seamless Fastmail Trigger: Automatically detects new incoming messages in your Fastmail inbox.
  1. AI-Powered Replies: Uses GPT-4 to draft tailored responses with contextual understanding.
  1. Customizable Tone: Adjust system prompts to match your voice—formal, casual, friendly, or concise.
  1. Direct Email Sending: Replies are sent automatically through Fastmail without extra steps.
  1. Hands-Free Productivity: Reduces inbox overload while still keeping communication thoughtful and timely.

About the author

Alauddin Aladin is an AI Automation expert helping businesses streamline operations, boost productivity, and scale effortlessly using tools like Make.com and n8n. With over a decade of experience in digital systems and automation strategy, Alauddin empowers entrepreneurs to save time and grow smarter through intelligent workflows and AI-driven solutions.

Leave a Comment