I'm using Gmail for my application to send an email, but when it tried to send an email, Gmail returned the error message "Failed to authenticate on SMTP server with username " " using 3 possible authenticators. Authenticator LOGIN returned Expected response code 235 but got code "535", with the message "535-5.7.8 Username and Password not accepted." I am using Google Workplace so emails are sent with my business's domain name. There is a generic Gmail account for sending emails, and its Gmail SMTP config information is good in the application. Why isn't this working and what's the fix?



