Python script fails Gmail SMTP authentication. Below is an updated sample:
import smtplib
connection = smtplib.SMTP('smtp.gmail.com', 587)
connection.starttls()
connection.login('[email protected]', 'secretPass')
connection.sendmail('[email protected]','[email protected]','Test message')
connection.quit()
Should the username be the full email address?
hey, try using your full email addr. i had similar issues and after enabling app access it worked. also, check you haven’t got a new google security block stopping the login. it worked for me after a little tweak in settings.
In my experience, using the full email address as the username is necessary when authenticating against Gmail’s SMTP server. I encountered a similar issue before, and besides verifying that your credentials are correct, you also need to ensure that your account settings permit SMTP access. If you have two-factor authentication enabled, generating an App Password is essential. Sometimes Google makes changes to its security policies that can affect this behavior, so it is always a good idea to review your account’s settings if you experience authentication failures.
During my troubleshooting of similar SMTP issues with Gmail, I discovered that device authentication settings can also cause problems. The full email address is typically required, but I found that issues often stem from insufficient account settings. The configuration for less secure apps plays a significant role. Even if you are not using multi-factor authentication, Gmail might block the login if it deems the application less secure. Always verify that your account permits SMTP access and check recent security alerts in your Google account activity.