Is this still a function of the software?

when I set it up and test on several email accounts... I get this message.

Proceeding
Connected
Error with user authentication;Server says: 535-5.7.8 Username and Password not accepted. Learn more at
535 5.7.8 https://support.google.com/mail/?p=BadCredentials o130sm64757000pfg.171 - gsmtp


TIA

I was able to successfully set up Gmail on my BI5 install as it was a work around for notification issue on my ios app.