<form method="POST">
    <h3>Editing: MailMessage.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

namespace Illuminate\Notifications\Messages;

use Illuminate\Container\Container;
use Illuminate\Contracts\Support\Arrayable;
use Illuminate\Contracts\Support\Renderable;
use Illuminate\Mail\Markdown;
use Illuminate\Support\Traits\Conditionable;

class MailMessage extends SimpleMessage implements Renderable
{
    use Conditionable;

    /**
     * The view to be rendered.
     *
     * @var array|string
     */
    public $view;

    /**
     * The view data for the message.
     *
     * @var array
     */
    public $viewData = [];

    /**
     * The Markdown template to render (if applicable).
     *
     * @var string|null
     */
    public $markdown = 'notifications::email';

    /**
     * The current theme being used when generating emails.
     *
     * @var string|null
     */
    public $theme;

    /**
     * The &quot;from&quot; information for the message.
     *
     * @var array
     */
    public $from = [];

    /**
     * The &quot;reply to&quot; information for the message.
     *
     * @var array
     */
    public $replyTo = [];

    /**
     * The &quot;cc&quot; information for the message.
     *
     * @var array
     */
    public $cc = [];

    /**
     * The &quot;bcc&quot; information for the message.
     *
     * @var array
     */
    public $bcc = [];

    /**
     * The attachments for the message.
     *
     * @var array
     */
    public $attachments = [];

    /**
     * The raw attachments for the message.
     *
     * @var array
     */
    public $rawAttachments = [];

    /**
     * Priority level of the message.
     *
     * @var int
     */
    public $priority;

    /**
     * The callbacks for the message.
     *
     * @var array
     */
    public $callbacks = [];

    /**
     * Set the view for the mail message.
     *
     * @param  array|string  $view
     * @param  array  $data
     * @return $this
     */
    public function view($view, array $data = [])
    {
        $this-&gt;view = $view;
        $this-&gt;viewData = $data;

        $this-&gt;markdown = null;

        return $this;
    }

    /**
     * Set the Markdown template for the notification.
     *
     * @param  string  $view
     * @param  array  $data
     * @return $this
     */
    public function markdown($view, array $data = [])
    {
        $this-&gt;markdown = $view;
        $this-&gt;viewData = $data;

        $this-&gt;view = null;

        return $this;
    }

    /**
     * Set the default markdown template.
     *
     * @param  string  $template
     * @return $this
     */
    public function template($template)
    {
        $this-&gt;markdown = $template;

        return $this;
    }

    /**
     * Set the theme to use with the Markdown template.
     *
     * @param  string  $theme
     * @return $this
     */
    public function theme($theme)
    {
        $this-&gt;theme = $theme;

        return $this;
    }

    /**
     * Set the from address for the mail message.
     *
     * @param  string  $address
     * @param  string|null  $name
     * @return $this
     */
    public function from($address, $name = null)
    {
        $this-&gt;from = [$address, $name];

        return $this;
    }

    /**
     * Set the &quot;reply to&quot; address of the message.
     *
     * @param  array|string  $address
     * @param  string|null  $name
     * @return $this
     */
    public function replyTo($address, $name = null)
    {
        if ($this-&gt;arrayOfAddresses($address)) {
            $this-&gt;replyTo += $this-&gt;parseAddresses($address);
        } else {
            $this-&gt;replyTo[] = [$address, $name];
        }

        return $this;
    }

    /**
     * Set the cc address for the mail message.
     *
     * @param  array|string  $address
     * @param  string|null  $name
     * @return $this
     */
    public function cc($address, $name = null)
    {
        if ($this-&gt;arrayOfAddresses($address)) {
            $this-&gt;cc += $this-&gt;parseAddresses($address);
        } else {
            $this-&gt;cc[] = [$address, $name];
        }

        return $this;
    }

    /**
     * Set the bcc address for the mail message.
     *
     * @param  array|string  $address
     * @param  string|null  $name
     * @return $this
     */
    public function bcc($address, $name = null)
    {
        if ($this-&gt;arrayOfAddresses($address)) {
            $this-&gt;bcc += $this-&gt;parseAddresses($address);
        } else {
            $this-&gt;bcc[] = [$address, $name];
        }

        return $this;
    }

    /**
     * Attach a file to the message.
     *
     * @param  string  $file
     * @param  array  $options
     * @return $this
     */
    public function attach($file, array $options = [])
    {
        $this-&gt;attachments[] = compact('file', 'options');

        return $this;
    }

    /**
     * Attach in-memory data as an attachment.
     *
     * @param  string  $data
     * @param  string  $name
     * @param  array  $options
     * @return $this
     */
    public function attachData($data, $name, array $options = [])
    {
        $this-&gt;rawAttachments[] = compact('data', 'name', 'options');

        return $this;
    }

    /**
     * Set the priority of this message.
     *
     * The value is an integer where 1 is the highest priority and 5 is the lowest.
     *
     * @param  int  $level
     * @return $this
     */
    public function priority($level)
    {
        $this-&gt;priority = $level;

        return $this;
    }

    /**
     * Get the data array for the mail message.
     *
     * @return array
     */
    public function data()
    {
        return array_merge($this-&gt;toArray(), $this-&gt;viewData);
    }

    /**
     * Parse the multi-address array into the necessary format.
     *
     * @param  array  $value
     * @return array
     */
    protected function parseAddresses($value)
    {
        return collect($value)-&gt;map(function ($address, $name) {
            return [$address, is_numeric($name) ? null : $name];
        })-&gt;values()-&gt;all();
    }

    /**
     * Determine if the given &quot;address&quot; is actually an array of addresses.
     *
     * @param  mixed  $address
     * @return bool
     */
    protected function arrayOfAddresses($address)
    {
        return is_iterable($address) || $address instanceof Arrayable;
    }

    /**
     * Render the mail notification message into an HTML string.
     *
     * @return string
     */
    public function render()
    {
        if (isset($this-&gt;view)) {
            return Container::getInstance()-&gt;make('mailer')-&gt;render(
                $this-&gt;view, $this-&gt;data()
            );
        }

        $markdown = Container::getInstance()-&gt;make(Markdown::class);

        return $markdown-&gt;theme($this-&gt;theme ?: $markdown-&gt;getTheme())
                -&gt;render($this-&gt;markdown, $this-&gt;data());
    }

    /**
     * Register a callback to be called with the Swift message instance.
     *
     * @param  callable  $callback
     * @return $this
     */
    public function withSwiftMessage($callback)
    {
        $this-&gt;callbacks[] = $callback;

        return $this;
    }
}
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