Automate Email Summaries with AI-Powered Digests

📌 Quick Context:

Drowning in email? Streamline your mornings with an AI-powered email digest that summarizes your unread messages—automatically. Save time, increase focus, and keep you informed without the inbox overload.

How to Do It in 3 Steps:

Step 1: Connect Gmail to Zapier

Create a new Zap:

Trigger: Choose Gmail → New Unread Email in Inbox
Set filters to catch only unread emails from the past 24 hours
Optional: Filter by label (e.g., “Important” or “Team”) to reduce noise

🛑 Pro Tip: Use Gmail filters to auto-label important emails—this makes your digest smarter.

Step 2: Send Email Content to ChatGPT for Summarization

Add an Action Step: Use OpenAI’s “ChatGPT” or “Chat Completions” action

Prompt example:

Summarize the following emails into a concise daily digest with key points and senders listed:

{{Email Body Plain}}

Use a markdown-friendly output if sending to Slack or Notion

💡 Common Mistake: Don’t just summarize subject lines—include the plain text body for richer context.

Step 3: Deliver the Summary Where You Want It

Choose a delivery method:

Email: Send a daily digest back to yourself
Slack: Post to a “#daily-digest” channel
Notion or Google Docs: Append to a rolling summary doc

🔁 Iteration Tip: Improve summarization by fine-tuning your prompt with tone preferences (e.g., “formal,” “bullet points,” or “action-focused”).

📝 Recommended Next Step:

Set up a test Zap with 1–3 emails and tweak your summarization prompt. Start small—evaluate clarity and usefulness, then scale to more inboxes or team accounts.

📦 Want to Go Deeper?

Add another filter to exclude marketing/newsletters
Use a “Digest by Zapier” step to batch multiple emails into one summary
Explore OpenAI’s function calling to extract structured tasks from emails (e.g., dates, to-dos)

Let your new AI assistant take the flood of emails off your plate—so you can focus on real work.

Nick Wentz

I've spent the last decade+ building and scaling technology companies—sometimes as a founder, other times leading marketing. These days, I advise early-stage startups and mentor aspiring founders. But my main focus is Forward Future, where we’re on a mission to make AI work for every human.

👉 Connect with me on LinkedIn

🏫 Auto-Summarizing Your Inbox with AI