[HELP] email doesn't get sent with gmail smtp

Hi everyone.

I'm trying to send email from my application but getting the following error: Expected response code 250 but got code "535", with message "535-5.7.8 Username and Password not accepted. Learn more at 535 5.7.8 http://support.google.com/mail/bin/answer.py?answer=14257 kz7sm4622758lac.10 - gsmtp "

my app/config.mail.php looks like this:

 'driver' => 'smtp',

 'host' => 'smtp.gmail.com',


 'port' => 587,


 'from' => array('address' => 'xmalinkoff@gmail.com', 'name' => 'Andrew Malinkoff'),

 'encryption' => 'tls',

 'username' => 'username@gmail.com',

 'password' => 'my pass',

 'sendmail' => '/usr/sbin/sendmail -bs',

 'pretend' => false,

Any thoughts?

credentials are correct, I tried to use different ones several times