diff --git a/src/Mailgun/Messages/MessageBuilder.php b/src/Mailgun/Messages/MessageBuilder.php
index d4aec4f..bf33269 100644
--- a/src/Mailgun/Messages/MessageBuilder.php
+++ b/src/Mailgun/Messages/MessageBuilder.php
@@ -338,6 +338,11 @@ class MessageBuilder
         }
     }
 
+    public function setMessage($message)
+    {
+        $this->message = $message;
+    }
+
     public function getMessage()
     {
         return $this->message;
diff --git a/tests/Mailgun/Tests/Messages/MessageBuilderTest.php b/tests/Mailgun/Tests/Messages/MessageBuilderTest.php
index d81eed5..f056d83 100644
--- a/tests/Mailgun/Tests/Messages/MessageBuilderTest.php
+++ b/tests/Mailgun/Tests/Messages/MessageBuilderTest.php
@@ -254,6 +254,14 @@ class MessageBuilderTest extends \Mailgun\Tests\MailgunTestCase{
 		$messageObj = $message->getMessage();
 		$this->assertEquals(array("my-option" => array("yes"), "o:my-other-option" => array("no")), $messageObj);
 	}
+
+    public function testSetMessage(){
+        $message = [1,2,3,4,5];
+        $messageBuilder = $this->client->MessageBuilder();
+        $messageBuilder->setMessage($message);
+
+        $this->assertEquals($message, $messageBuilder->getMessage());
+    }
 }
 
 ?>
\ No newline at end of file