Email Automation with n8n, AI Agent, Gmail Drafts, and Google Calendar

Automating emails can save hours every week. Here’s how you can build a simple but powerful system that starts from a chat message and ends with a ready-to-send email or calendar invite.

What You Need

• n8n (no-code automation tool)
• Gmail (with access to Drafts API)
• Google Calendar
• Any AI agent (like OpenAI or your own model)
• A chat tool like Slack, Discord, or Telegram

Step 1: Use Chat as a Trigger

Start the automation when someone sends a specific message. You can do this with:

• n8n’s Slack trigger
• Telegram or Discord webhook

We have used a chat tool built into n8n for this example, but you can adapt it to your preferred platform.

Step 2: Send the Message to an AI Agent

Once triggered, send the chat content to your AI agent.

Tips:

• Use OpenAI’s GPT model for better responses
• Add guardrails for tone and content

Tone and content helps you draft better emails.

Step 3: Create a Gmail Draft

Next, connect the Gmail node in n8n:

• Use “Create Draft”
• Fill in the recipient, subject, and AI-generated content
• Add a label like “AI-generated” so it’s easy to find later

This step lets you review before sending, which keeps things safe and human-checked.

You can find the workflow here

Step 4: Add to Google Calendar

If the message is about booking a meeting, use the Google Calendar tool.

The tool will automatically called by the ai agent to create a calendar event.

Step 5: Notify Yourself or Your Team

After everything is set up:

• Send a confirmation in your chat
• Or send a summary email via Gmail
• Or log it in Airtable/Google Sheets

This step helps you stay in the loop and catch errors early.

Final Thoughts

This automation flow can:

• Save hours on email
• Keep your inbox clean
• Make your AI agent actually useful
• Stop you from missing meetings

Start small—just 1 chat trigger and 1 Gmail draft. Then scale from there.