Build a Python Email Automation System: Send 100 Personalized Emails in 5 Minutes

Manual email campaigns are slow and error-prone. Here's how to build an email automation system with Python that sends personalized emails at scale.

Basic Email Sender with Gmail

import smtplib import ssl from email.mime.text import MIMEText from email.mime.multipart import MIMEMultipart from email.mime.base import MIMEBase from email import encoders import os

class EmailSender : def __init__ ( self , email : str , password : str ): """ Initialize with Gmail credentials. For Gmail: enable 2FA and create an App Password at https://myaccount.google.com/apppasswords """ self . email = email self . password = password self . smtp_server = " smtp.gmail.com " self . port = 587

def send_email ( self , to_email : str , subject : str , body_text : str , body_html : str = None , attachments : list = None ) -> bool : """ Send a single email with optional HTML and attachments.…