title: Android studio : Send email with gmail impossible
body: <p>I create an application. In this application, the users can send me an email (with gmail, my user and password are write in the script).
  Unfortunately, I received several emails from Google warning me that a third party knows my password or other. In fact, it was just someone trying to send me an email. So, I did not receive the email. Can you help me solve this, this part is extremely important in my application.
  thank you in advance</p>