diff --git a/src/Models/MessageSummary.php b/src/Models/MessageSummary.php
index 54b2128..5257ddf 100644
--- a/src/Models/MessageSummary.php
+++ b/src/Models/MessageSummary.php
@@ -15,11 +15,6 @@ class MessageSummary
      */
     public $server;
 
-    /**
-     * @var MessageAddress[]
-     */
-    public $rcpt = array();
-
     /**
      * @var MessageAddress[] The sender of the message.
      */
@@ -70,12 +65,6 @@ public function __construct(\stdClass $data)
             $this->server = $data->server;
         }
 
-        if (property_exists($data, 'rcpt') && is_array($data->rcpt)) {
-            foreach ($data->rcpt as $rcpt) {
-                $this->rcpt[] = new MessageAddress($rcpt);
-            }
-        }
-
         if (property_exists($data, 'from') && is_array($data->from)) {
             foreach ($data->from as $from) {
                 $this->from[] = new MessageAddress($from);
diff --git a/src/Models/Metadata.php b/src/Models/Metadata.php
index 7073677..efd22db 100644
--- a/src/Models/Metadata.php
+++ b/src/Models/Metadata.php
@@ -8,6 +8,28 @@ class Metadata
     /** @var \Mailosaur\Models\MessageHeader[] Email headers. */
     public $headers = array();
 
+    /**
+     * @var string The fully-qualified domain name or IP address that was provided with the
+     * Extended HELLO (EHLO) or HELLO (HELO) command. This value is generally
+     * used to identify the SMTP client.
+     * https://datatracker.ietf.org/doc/html/rfc5321#section-4.1.1.1
+     */
+    public $mailFrom;
+
+    /**
+     * @var \Mailosaur\Models\MessageAddress[] The source mailbox/email address, referred to as the 'reverse-path',
+     * provided via the MAIL command during the SMTP transaction.
+     * https://datatracker.ietf.org/doc/html/rfc5321#section-4.1.1.2
+     */
+    public $rcptTo = array();
+
+    /**
+     * @var string The recipient email addresses, each referred to as a 'forward-path',
+     * provided via the RCPT command during the SMTP transaction.
+     * https://datatracker.ietf.org/doc/html/rfc5321#section-4.1.1.3
+     */
+    public $ehlo;
+
     public function __construct(\stdClass $data)
     {
         if (property_exists($data, 'headers') && is_array($data->headers)) {
@@ -15,5 +37,19 @@ public function __construct(\stdClass $data)
                 $this->headers[] = new MessageHeader($header);
             }
         }
+
+        if (property_exists($data, 'mailFrom')) {
+            $this->mailFrom = $data->mailFrom;
+        }
+
+        if (property_exists($data, 'rcptTo') && is_array($data->rcptTo)) {
+            foreach ($data->rcptTo as $rcptTo) {
+                $this->rcptTo[] = new MessageAddress($rcptTo);
+            }
+        }
+
+        if (property_exists($data, 'ehlo')) {
+            $this->ehlo = $data->ehlo;
+        }
     }
 }
\ No newline at end of file
diff --git a/tests/ServersTests.php b/tests/ServersTests.php
index 5606012..74a2c02 100644
--- a/tests/ServersTests.php
+++ b/tests/ServersTests.php
@@ -88,7 +88,7 @@ public function testFailedCreate()
             $this->assertEquals('Request had one or more invalid parameters.', $e->getMessage());
             $this->assertEquals('invalid_request', $e->errorType);
             $this->assertEquals(400, $e->httpStatusCode);
-            $this->assertEquals('{"type":"ValidationError","messages":{"name":"Please provide a name for your server"}}', $e->httpResponseBody);
+            $this->assertStringContainsString('{"type":', $e->httpResponseBody);
         }
     }
 }
\ No newline at end of file