transparent-email/README.md

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# Transparent Email
Transparent Email clears aliases from email address. Email `John.Doe+alias@gmail.com` will be transformed to `johndoe@gmail.com`.
## Why?
To detect multi-accounts on your website.
## Supported mailboxes
* [gmail.com](https://gmail.com) and [Google Apps](https://apps.google.com) with custom domain
* [tlen.pl](http://tlen.pl)
* [33mail.com](https://www.33mail.com)
* [outlook.com](http://outlook.com)
* [yahoo.com](http://mail.yahoo.com)
* [yandex.ru](https://yandex.ru/)
* [mail.ru](https://mail.ru/)
## Usage
```php
use bkrukowski\TransparentEmail\TransparentEmailFactory;
use bkrukowski\TransparentEmail\Emails\Email;
use bkrukowski\TransparentEmail\Emails\EmailInterface;
use bkrukowski\TransparentEmail\Emails\InvalidEmailException;
try {
$factory = new TransparentEmailFactory();
$cleaner = $factory->createDefault();
$inputEmail = new Email('John.Doe+alias@gmail.com');
/** @var EmailInterface $transformedEmail */
$transformedEmail = $cleaner->getPrimaryEmail($inputEmail);
echo $transformedEmail;
} catch (InvalidEmailException $exception) {
echo 'Invalid email!';
}
```
## Versioning
The version numbers follow the [Semantic Versioning 2.0.0](http://semver.org/) scheme.
## Yahoo.com
Aliases work different on Yahoo than on Gmail. On Gmail part after plus is skipped.
For example message sent to `janedoe+alias@gmail.com` will be redirected to `janedoe@gmail.com`.
Yahoo uses the following pattern[*](https://help.yahoo.com/kb/SLN16026.html):
*baseName*-*keyword*@yahoo.com
* *baseName* - value defined by the user, different than email login;
* *keyword* - one from a list of keywords defined by the user.
Therefore we do not know what is the real email, so in this case result will be `baseName@yahoo.com`,
which actually does not exist.
## Yandex.ru
In official [documentation](https://yandex.com/support/mail/web/preferences/about-sender/additional-addresses.html) you can find some use-cases about aliases usage.
## Mail.ru
There's no official documentation about aliases here, but you can create them with 2 ways:
* `janedoe+alias@mail.ru` will be redirected to `janedoe@mail.ru`
* `janeDoe@MAIL.RU` will be redirected to `janedoe@mail.ru`