The app is configured with an application-specific password and it works In this Java Tutorial we will see how to send an email using GMail SMTP protocol in Java. com if you have an Office 365 for business You're now ready to use your email in the Android Gmail app!
The app is configured with an application-specific password and it works fine for a few days: email can be sent and received without a problem. But then I get this error message: The SMTP server "smtp.gmail.com" rejected the password for user "[email protected]".
Note: If you have iOS 8.3 or greater on your iPhone or OSX 10.10.3 on your Mac, you will no longer have to use App passwords to use 2-Step Verification when using the Gmail or any Google branded Apps from iTunes.
Use the password specifically and only for that email application, service or add-on. You can revoke any application-specific Gmail password without affecting passwords set up for other applications. Click DONE.