Not correct email validation

[Nidhognit]

Error:
In fom, user write email "test.@gmail.com", and form validation say 'valid', but i cant send message for this email, they is does not comply with RFC 2822, 3.6.2.

Form example:

            ->add('email', 'email', [
                    'required' => true,
                    'constraints' => [new NotBlank(), new Email()]
                ]
            )

System information:
Ubuntu 14, php 7.0.12, Symfony 2.8.12.

[xabbuh]

@Nidhognit Do you mean you experience what is described in #19359?

[jeremyFreeAgent]

Have you required egulias/email-validator?

[linaori]

The default validation of the Email validator does not do an extensive regex, it merely checks if the @ is present.

[dosten]

Since there are a lot of issues about this topic, why not open again the discussion to have a hard dependency on egulias/email-validator?

[sfarkas1988]

The email validator is useless from my point of view without strict mode.
The following email patterns are valid when using the email validator with default option:

        $validator = $this->getContainer()->get('validator');
        $emails = array(
            'xx@xx@virgilio.it',
            'xxx.mari@gmal..com',
            'xx.xx @alice.i',
            'xx.xx@gmal..com',
            'xx@hotmail.com;xxx.tgn.xxx@gencat.cat',
            'XXXX08@GMAIL.COM; XXXX@HUBU.ES'
        );

        foreach ($emails as $email) {
            var_dump($validator->validate($email, new Email()));
        }

[xabbuh]

Is there anything left to do here?