diff --git a/src/BluescaleMailApi.php b/src/BluescaleMailApi.php
index 0c5c13c..06630c4 100644
--- a/src/BluescaleMailApi.php
+++ b/src/BluescaleMailApi.php
@@ -32,8 +32,10 @@ class BluescaleMailApi
 
         $client = new Client();
 
-        $notifiable_recipient = false;
-        if (is_object($notifiable) && $notifiable_email = $notifiable->email) {
+      	if (is_object($notifiable) && isset($notifiable->email))
+        {
+         	$notifiable_recipient = false;
+        	$notifiable_email = $notifiable->email;
             $recipients = $template->recipients;
 
             if (count($recipients) > 0)
@@ -41,12 +43,13 @@ class BluescaleMailApi
                     if (!empty($recipient['address']))
                         if ($notifiable_email == $recipient['address'])
                             $notifiable_recipient = true;
-        }
+        
 
-        if (!$notifiable_recipient)
-            $template->recipients[] = [
-                'address' => $notifiable->email
-            ];
+            if (!$notifiable_recipient)
+                $template->recipients[] = [
+                    'address' => $notifiable->email
+                ];
+        }
 
         try {
              return $client->request('post', $url, [