:method:`Symfony\\Component\\Security\\Core\\Encoder\\PasswordEncoderInterface::isPasswordValid`

must first of all make sure the password is not too long, i.e. the password length is no longer

than 4096 characters. This is for security reasons (see `CVE-2013-5750`_), and you can use the

:method:`Symfony\\Component\\Security\\Core\\Encoder\\BasePasswordEncoder::isPasswordTooLong`_

:method:`Symfony\\Component\\Security\\Core\\Encoder\\BasePasswordEncoder::isPasswordTooLong`

method for this check:

use Symfony\Component\Security\Core\Exception\BadCredentialsException;

Requirements for sending emails from a production system differ from your

development setup as you don't want to be limited in the number of emails,

the sending rate or the sender address. Thus,

:doc:`using Gmail</cookbook/email/gmail>`_ or similar services is not an

:doc:`using Gmail</cookbook/email/gmail>` or similar services is not an

option. If setting up and maintaining your own reliable mail server causes

you a headache there's a simple solution: Leverage the cloud to send your

emails.