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-Plugin: Add Mail Transport
-==========================
-
-By default Kanboard supports 3 standards mail transports:
-
-- Mail (PHP mail function)
-- Smtp
-- Sendmail command
-
-With the plugin API you can add a driver for any email provider.
-For example, your plugin can add a mail transport for a provider that uses an HTTP API.
-
-Implementation
---------------
-
-Your plugin must implement the interface `Kanboard\Core\Mail\ClientInterface` and extends from `Kanboard\Core\Base`.
-
-The only method you need to implement is `sendEmail()`:
-
-```php
-interface ClientInterface
-{
-    /**
-     * Send a HTML email
-     *
-     * @access public
-     * @param  string $recipientEmail
-     * @param  string $recipientName
-     * @param  string $subject
-     * @param  string $html
-     * @param  string $authorName
-     * @param  string $authorEmail
-     */
-    public function sendEmail($recipientEmail, $recipientName, $subject, $html, $authorName, $authorEmail = '');
-}
-```
-
-To register your new mail transport, use the method `setTransport($transport, $class)` from the class `Kanboard\Core\Mail\Client`:
-
-```php
-$this->emailClient->setTransport('myprovider', '\Kanboard\Plugin\MyProvider\MyEmailHandler');
-```
-
-The second argument contains the absolute name space of your concrete class.
-
-Examples of mail transport plugins
-----------------------------------
-
-- [Sendgrid](https://github.com/kanboard/plugin-sendgrid)
-- [Mailgun](https://github.com/kanboard/plugin-mailgun)
-- [Postmark](https://github.com/kanboard/plugin-postmark)