Login error while accessing the email account in Email Message Input step or mail step

not able to access account while entering correct email id and Password throwing error “Problem while sending message: javax.mail.AuthenticationFailedException: 535-5.7.8 Username and Password not accepted. Learn more at
535 5.7.8 Check Gmail through other email platforms - Gmail Help s21-20020a056a00195500b0051c0784cb45sm10814760pfk.99 - gsmtp”
how can I access my email ID