How to Create an Automated Newsletter with Python and GitHub Actions (for Free)

7claw ICT News

2025-04-02 0 276

Ever wanted to send a regular newsletter without lifting a finger? Here’s how you can build a fully automated email newsletter using:

Python
Gmail
GitHub Actions

Tools You’ll Need

A Gmail account (preferably a new one)
Basic knowledge of Python
A GitHub account

Step 1: Set Up Gmail

Create a new Gmail account.
Enable “Less secure apps” to allow login via script.
Store your email and password securely in a .env file (we’ll cover that next).

Step 2: Prepare Your Python Script

Create a folder called automated-newsletter/
Inside it, create two files:
- .env – for your credentials
- newsletter.py – for the script

`.env` file format:

⚠️ Important: Never commit .env to GitHub!

Step 3: Install Required Libraries

Step 4: Write the Python Script

Here’s a full working version of the script:

python

import os

import smtplib

from email.mime.multipart import MIMEMultipart

from email.mime.text import MIMEText

from dotenv import load_dotenv
# Load email credentials

load_dotenv()

email_address = os.getenv("EMAIL_ADDRESS")

email_password = os.getenv("EMAIL_PASSWORD")
# Create email content

html_content = """\

<html>

  <body>

    <h2>Today’s Kite Forecast 🪁</h2>

    <p>Wind speed is looking good! Time to hit the waves.</p>

  </body>

</html>

"""

text_content = "Today’s Kite Forecast 🪁\nWind speed is looking good! Time to hit the waves."
# Subscriber emails

subscriber_emails = ["example1@gmail.com", "example2@gmail.com"]
# Send emails

with smtplib.SMTP_SSL("smtp.gmail.com", 465) as server:

    server.login(email_address, email_password)
    for recipient in subscriber_emails:

        msg = MIMEMultipart("alternative")

        msg["Subject"] = "WindSiren Forecast"

        msg["From"] = email_address

        msg["To"] = recipient
        part1 = MIMEText(text_content, "plain")

        part2 = MIMEText(html_content, "html")

        msg.attach(part1)

        msg.attach(part2)

server.sendmail(email_address, recipient, msg.as_string())

Step 5: Automate with GitHub Actions

Create the following folder structure:

Paste this into newsletter.yml:

yaml

name: Send Newsletter
on:

  schedule:

    - cron: '15 7 * * *'  # Runs daily at 7:15 AM

  workflow_dispatch:
jobs:

  send:

    runs-on: ubuntu-latest

    steps:

      - name: Checkout repo

        uses: actions/checkout@v3
      - name: Set up Python

        uses: actions/setup-python@v4

        with:

          python-version: '3.x'
      - name: Install dependencies

        run: pip install python-dotenv

- name: Run newsletter script env: EMAIL_ADDRESS: ${{ secrets.EMAIL_ADDRESS }} EMAIL_PASSWORD: ${{ secrets.EMAIL_PASSWORD }} run: python newsletter.py

Go to your GitHub repo → Settings → Secrets and variables → Actions → New repository secret.

Add:

EMAIL_ADDRESS
EMAIL_PASSWORD

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Tools You’ll Need

Step 1: Set Up Gmail

Step 2: Prepare Your Python Script

.env file format:

Step 3: Install Required Libraries

Step 4: Write the Python Script

Step 5: Automate with GitHub Actions

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`.env` file format: