Python Smtplib: Gmail Works, But Only "sometimes"

I wrote a simple script to send an email via the Gmail SMTP server. Here the code: import smtplib msg = 'Hello World!' server = smtplib.SMTP('smtp.gmail.com', 587) #port 465 or 587

Solution 1:

The answer recommends enabling access for less secure apps first. If that does not work you could try visiting the link, which is supplied on that page: https://www.google.com/accounts/DisplayUnlockCaptcha

This may enable access.