SMTP in Python:

Securely send mail using SMTP_SSL:

Its a best practice to store the password in the environment variables. When you create a new environment variable on Windows, it's important to note that changes to environment variables usually require restarting any applications or shells that were open before the variable was added.

import smtplib, ssl

port = 465  # For SSL
password = <password>

# Create a secure SSL context
context = ssl.create_default_context()

with smtplib.SMTP_SSL("smtp.gmail.com", port, context=context) as server:
    server.login("my@gmail.com", password)
    # TODO: Send email here

Securely send mail using starttls():

with SMTP('smtp.gmail.com', 587) as smtp:
    smtp.starttls()
    smtp.login(email_Address, os.environ.get("GMAIL_APP_PSWD"))
    smtp.sendmail(email_Address, email_Address, message.encode('utf-8'))

smtp.gmail.com is the smtp server of GMail.

smtp.office365.com is the smtp server of Outlook Mail.