In the next lesson, I'll show you how to send email using the smtplib module and Python. If you are getting the error Connection unexpectedly closed, it might be due to a number of things. You can come back to this lesson to debug.

1. Make sure you've got the correct smtp address for your email provider:

Gmail: smtp.gmail.com

Hotmail: smtp.live.com

Outlook: outlook.office365.com

Yahoo: smtp.mail.yahoo.com

If you use another email provider, just Google for your email provider e.g. "Gmail SMTP address"

Below are steps specific to users sending email from Gmail addresses.

2. Go to https://myaccount.google.com/

Select Security on the left and scroll down to How you sign in to Google.

Enable 2-Step Verification

3. Click on 2-Step Verification again, and scroll to the bottom.

There you can add an App password.

Select Other from the dropdown list and enter an app name, e.g. Python Mail, then click Generate.

COPY THE PASSWORD - This is the only time you will ever see the password. It is 16 characters with no spaces.

Use this App password in your Python code instead of your normal password.

4. Add a port number by changing your code to this:

smtplib.SMTP("smtp.gmail.com", port=587)