diff --git a/lib/Telegraph/Webmention.php b/lib/Telegraph/Webmention.php
index 60fee6e..ed0a432 100644
--- a/lib/Telegraph/Webmention.php
+++ b/lib/Telegraph/Webmention.php
@@ -5,9 +5,11 @@ use IndieWeb\MentionClient;
 
 class Webmention {
 
-  private static function saveStatus($webmentionID, $http_code, $code, $raw=null) {
+  private static $http = false;
+
+  private static function updateStatus($webmention, $http_code, $code, $raw=null) {
     $status = ORM::for_table('webmention_status')->create();
-    $status->webmention_id = $webmentionID;
+    $status->webmention_id = $webmention->id;
     $status->created_at = date('Y-m-d H:i:s');
     if($http_code)
       $status->http_code = $http_code;
@@ -15,9 +17,18 @@ class Webmention {
     if($raw)
       $status->raw_response = $raw;
     $status->save();
+
+    // Post to the callback URL if one is set
+    if($webmention->callback) {
+      return self::$http->post($webmention->callback, [
+        'source' => $webmention->source,
+        'target' => $webmention->target,
+        'status' => $code
+      ]);
+    }
   }
 
-  public static function send($id, $client=false) {
+  public static function send($id, $client=false, $http=false) {
     $webmention = ORM::for_table('webmentions')->where('id', $id)->find_one();
     if(!$webmention) {
       echo 'Webmention '.$id.' was not found'."\n";
@@ -27,6 +38,11 @@ class Webmention {
     if(!$client)
       $client = new MentionClient();
 
+    if(!$http)
+      $http = new Telegraph\HTTP();
+
+    self::$http = $http;
+
     // Discover the webmention or pingback endpoint
     $endpoint = $client->discoverWebmentionEndpoint($webmention->target);
 
@@ -36,16 +52,14 @@ class Webmention {
 
       // If no pingback endpoint was found, we can't do anything else
       if(!$pingbackEndpoint) {
-        self::saveStatus($id, null, 'not_supported');
-        return;
+        return self::updateStatus($webmention, null, 'not_supported');
       }
 
       $webmention->pingback_endpoint = $pingbackEndpoint;
       $webmention->save();
 
       $success = $client->sendPingbackToEndpoint($pingbackEndpoint, $webmention->source, $webmention->target);
-      self::saveStatus($id, null, ($success ? 'pingback_accepted' : 'pingback_error'));
-      return;
+      return self::updateStatus($webmention, null, ($success ? 'pingback_accepted' : 'pingback_error'));
     }
 
     // There is a webmention endpoint, send the webmention now
@@ -68,7 +82,7 @@ class Webmention {
       $status = 'webmention_error';
     }
 
-    self::saveStatus($webmention->id, $response['code'], $status, $response['body']);
+    return self::updateStatus($webmention, $response['code'], $status, $response['body']);
   }
 
 }
diff --git a/tests/ProcessTest.php b/tests/ProcessTest.php
index aba31d8..3f2dce8 100644
--- a/tests/ProcessTest.php
+++ b/tests/ProcessTest.php
@@ -4,11 +4,13 @@ use Symfony\Component\HttpFoundation\Response;
 
 class ProcessTest extends PHPUnit_Framework_TestCase {
 
-  private $client;
+  private $http;
+  private $api;
 
   public function setUp() {
-    $this->client = new API();
-    $this->client->http = new Telegraph\HTTPTest();
+    $this->http = new Telegraph\HTTPTest();
+    $this->api = new API();
+    $this->api->http = $this->http;
     ORM::for_table('users')->raw_query('TRUNCATE users')->delete_many();
     ORM::for_table('roles')->raw_query('TRUNCATE roles')->delete_many();
     ORM::for_table('sites')->raw_query('TRUNCATE sites')->delete_many();
@@ -37,15 +39,15 @@ class ProcessTest extends PHPUnit_Framework_TestCase {
   private function webmention($params) {
     $request = new Request($params);
     $response = new Response();
-    $response = $this->client->webmention($request, $response);
+    $response = $this->api->webmention($request, $response);
     $webmention = ORM::for_table('webmentions')->where(['source' => $params['source'], 'target' => $params['target']])->find_one();
     $client = new IndieWeb\MentionClientTest();
     $client::$dataDir = dirname(__FILE__) . '/data/';
     if(!is_object($webmention)) {
       throw new Exception("No webmention was queued for this test");
     }
-    Telegraph\Webmention::send($webmention->id, $client);
-    return $webmention;
+    $callback = Telegraph\Webmention::send($webmention->id, $client, $this->http);
+    return [$webmention, $callback];
   }
 
   private static function webmentionStatus($id) {
@@ -54,7 +56,7 @@ class ProcessTest extends PHPUnit_Framework_TestCase {
 
   public function testNoEndpoint() {
     $this->_createExampleAccount();
-    $webmention = $this->webmention([
+    list($webmention, $callback) = $this->webmention([
       'token' => 'a',
       'source' => 'http://source.example.com/no-endpoint',
       'target' => 'http://target.example.com/no-endpoint'
@@ -65,7 +67,7 @@ class ProcessTest extends PHPUnit_Framework_TestCase {
 
   public function testPingbackSuccess() {
     $this->_createExampleAccount();
-    $webmention = $this->webmention([
+    list($webmention, $callback) = $this->webmention([
       'token' => 'a',
       'source' => 'http://source.example.com/pingback-success',
       'target' => 'http://target.example.com/pingback-success'
@@ -78,7 +80,7 @@ class ProcessTest extends PHPUnit_Framework_TestCase {
 
   public function testPingbackFailed() {
     $this->_createExampleAccount();
-    $webmention = $this->webmention([
+    list($webmention, $callback) = $this->webmention([
       'token' => 'a',
       'source' => 'http://source.example.com/pingback-failed',
       'target' => 'http://target.example.com/pingback-failed'
@@ -89,7 +91,7 @@ class ProcessTest extends PHPUnit_Framework_TestCase {
 
   public function testWebmentionTakesPriorityOverPingback() {
     $this->_createExampleAccount();
-    $webmention = $this->webmention([
+    list($webmention, $callback) = $this->webmention([
       'token' => 'a',
       'source' => 'http://source.example.com/webmention-and-pingback',
       'target' => 'http://target.example.com/webmention-success'
@@ -100,7 +102,7 @@ class ProcessTest extends PHPUnit_Framework_TestCase {
 
   public function testWebmentionSucceeds() {
     $this->_createExampleAccount();
-    $webmention = $this->webmention([
+    list($webmention, $callback) = $this->webmention([
       'token' => 'a',
       'source' => 'http://source.example.com/webmention-success',
       'target' => 'http://target.example.com/webmention-success'
@@ -113,7 +115,7 @@ class ProcessTest extends PHPUnit_Framework_TestCase {
 
   public function testSavesWebmentionStatusURL() {
     $this->_createExampleAccount();
-    $webmention = $this->webmention([
+    list($webmention, $callback) = $this->webmention([
       'token' => 'a',
       'source' => 'http://source.example.com/webmention-status-url',
       'target' => 'http://target.example.com/webmention-status-url'
@@ -128,7 +130,7 @@ class ProcessTest extends PHPUnit_Framework_TestCase {
 
   public function testWebmentionFailed() {
     $this->_createExampleAccount();
-    $webmention = $this->webmention([
+    list($webmention, $callback) = $this->webmention([
       'token' => 'a',
       'source' => 'http://source.example.com/webmention-failed',
       'target' => 'http://target.example.com/webmention-failed'
@@ -139,4 +141,19 @@ class ProcessTest extends PHPUnit_Framework_TestCase {
     $this->assertEquals('http://webmention.example.com/error', $webmention->webmention_endpoint);
   }
 
+  public function testWebmentionStatusCallback() {
+    $this->_createExampleAccount();
+    list($webmention, $callback) = $this->webmention([
+      'token' => 'a',
+      'source' => 'http://source.example.com/webmention-success',
+      'target' => 'http://target.example.com/webmention-success',
+      'callback' => 'http://source.example.com/callback'
+    ]);
+    $status = $this->webmentionStatus($webmention->id);
+    $this->assertEquals($status->status, 'webmention_accepted');
+    $webmention = ORM::for_table('webmentions')->where('id',$webmention->id)->find_one();
+    $this->assertEquals('http://webmention.example.com/success', $webmention->webmention_endpoint);
+    $this->assertEquals('Callback was successful', trim($callback['body']));
+  }
+
 }
diff --git a/tests/data/source.example.com/callback b/tests/data/source.example.com/callback
new file mode 100644
index 0000000..2e207b6
--- /dev/null
+++ b/tests/data/source.example.com/callback
@@ -0,0 +1,7 @@
+HTTP/1.1 200 OK
+Server: Apache
+Date: Wed, 09 Dec 2015 03:29:14 GMT
+Content-Type: text/html; charset=utf-8
+Connection: keep-alive
+
+Callback was successful