Failed to authenticate on SMTP server with username code example

Example: Failed to authenticate on SMTP server with username

//Capture Unload
//https://accounts.google.com/b/0/UnlockCaptcha

MAIL_DRIVER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
MAIL_USERNAME=dianexxxxx@gmail.com
MAIL_PASSWORD=xxxxxx
MAIL_ENCRYPTION=tls