SMTP
Simple Mail Transfer Protocol
Credentials
Any email provider will work, but for this tutorial I’ll show how to get your credentials using Gmail 
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Go to your Google Account: https://myaccount.google.com/
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In the search bar, type “App passwords” and open that page.
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Choose a name for your app and click Create.
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Copy the generated password and keep it somewhere secure.
logo.png sample.pdf
import smtplib
from email.message import EmailMessage
from pathlib import Path
smtp_server = "smtp.gmail.com"
smtp_port = 587
username = "jcaetano1930@gmail.com"
password = "***"
msg = EmailMessage()
msg["From"] = username
msg["To"] = "jaimedcsilva@hotmail.com"
msg["Subject"] = "Example of an email with some content!"
#Plain Text
msg.set_content("Your email client does not support HTML.")
#Html
html = """
<html>
<body>
<img src="cid:logo">
<p>Ever make mistakes in life? Let's make them birds.</p>
</body>
</html>
"""
msg.add_alternative(html, subtype="html")
#Attachment
file_path = "sample.pdf"
file_data = Path(file_path).read_bytes()
msg.add_attachment(file_data, maintype="application", subtype="pdf", filename=file_path)
#Embedded Image
img_data = Path("logo.png").read_bytes()
html_part = msg.get_payload()[1]
html_part.add_related(img_data, maintype="image", subtype="png", cid="logo")
try:
with smtplib.SMTP(smtp_server, smtp_port) as server:
server.starttls()
server.login(username, password)
server.send_message(msg)
print("E-mail sent!")
except Exception as e:
print("Error:", e)
18 Nov. 2025
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Last Updated: 02 Dec. 2025
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