Hello, I am following help guide of “Email with Templates” but when I configure smtp.gmail.com, I always get following error 535-5.7.8 Username and Password not accepted. Learn more at 535 5.7.8 https://support.google.com/mail/?p=BadCredentials c23sm9262858eds.57 - gsmtp What may be the problem? My gmail credentials are fine.
Do you have 2 factor authentication enabled?
You may need to make the account less secure to use this functionality.