ALPHA 3.0.2a

vendor/laravel/framework/src/Illuminate/Notifications/Channels/MailChannel.php

@@ -186,7 +186,7 @@ class MailChannel
 
         return collect($recipients)->mapWithKeys(function ($recipient, $email) {
             return is_numeric($email)
-                    ? [(is_string($recipient) ? $recipient : $recipient->email)]
+                    ? [$email => (is_string($recipient) ? $recipient : $recipient->email)]
                     : [$email => $recipient];
         })->all();
     }

vendor/laravel/framework/src/Illuminate/Notifications/Channels/SlackWebhookChannel.php

@@ -33,7 +33,7 @@ class SlackWebhookChannel
      *
      * @param  mixed  $notifiable
      * @param  \Illuminate\Notifications\Notification  $notification
-     * @return \Psr\Http\Message\ResponseInterface
+     * @return void
      */
     public function send($notifiable, Notification $notification)
     {

vendor/laravel/framework/src/Illuminate/Notifications/Messages/MailMessage.php

@@ -2,6 +2,9 @@
 
 namespace Illuminate\Notifications\Messages;
 
+use Traversable;
+use Illuminate\Contracts\Support\Arrayable;
+
 class MailMessage extends SimpleMessage
 {
     /**
@@ -144,7 +147,11 @@ class MailMessage extends SimpleMessage
      */
     public function replyTo($address, $name = null)
     {
-        $this->replyTo[] = [$address, $name];
+        if ($this->arrayOfAddresses($address)) {
+            $this->replyTo += $this->parseAddresses($address);
+        } else {
+            $this->replyTo[] = [$address, $name];
+        }
 
         return $this;
     }
@@ -152,13 +159,17 @@ class MailMessage extends SimpleMessage
     /**
      * Set the cc address for the mail message.
      *
-     * @param  string  $address
+     * @param  array|string  $address
      * @param  string|null  $name
      * @return $this
      */
     public function cc($address, $name = null)
     {
-        $this->cc[] = [$address, $name];
+        if ($this->arrayOfAddresses($address)) {
+            $this->cc += $this->parseAddresses($address);
+        } else {
+            $this->cc[] = [$address, $name];
+        }
 
         return $this;
     }
@@ -166,13 +177,17 @@ class MailMessage extends SimpleMessage
     /**
      * Set the bcc address for the mail message.
      *
-     * @param  string  $address
+     * @param  array|string  $address
      * @param  string|null  $name
      * @return $this
      */
     public function bcc($address, $name = null)
     {
-        $this->bcc[] = [$address, $name];
+        if ($this->arrayOfAddresses($address)) {
+            $this->bcc += $this->parseAddresses($address);
+        } else {
+            $this->bcc[] = [$address, $name];
+        }
 
         return $this;
     }
@@ -230,4 +245,30 @@ class MailMessage extends SimpleMessage
     {
         return array_merge($this->toArray(), $this->viewData);
     }
+
+    /**
+     * Parse the multi-address array into the necessary format.
+     *
+     * @param  array  $value
+     * @return array
+     */
+    protected function parseAddresses($value)
+    {
+        return collect($value)->map(function ($address, $name) {
+            return [$address, is_numeric($name) ? null : $name];
+        })->values()->all();
+    }
+
+    /**
+     * Determine if the given "address" is actually an array of addresses.
+     *
+     * @param  mixed  $address
+     * @return bool
+     */
+    protected function arrayOfAddresses($address)
+    {
+        return is_array($address) ||
+               $address instanceof Arrayable ||
+               $address instanceof Traversable;
+    }
 }

vendor/laravel/framework/src/Illuminate/Notifications/SendQueuedNotifications.php

@@ -25,7 +25,7 @@ class SendQueuedNotifications implements ShouldQueue
     public $notification;
 
     /**
-     * All of the channels to send the notification too.
+     * All of the channels to send the notification to.
      *
      * @var array
      */