diff --git a/README.md b/README.md
index 39b7614..f0523f1 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,9 @@ Enable and configure the extension in your `codeception.yaml`
            # Limit the size of error messages in extended mode. 0 = unlimited. Default value: 80
            extendedMaxLength: 80
            
+           # Limit the amount of reported errors in extended mode. 0 = unlimited. Default value: 0
+           extendedMaxErrors: 10
+           
            # customize your message with additional prefix and/or suffix
            
            messagePrefix:     '*Smoke-Test*'
@@ -66,4 +69,4 @@ Example
 
 Dependencies
 -----
-This package uses the package [maknz/slack](https://github.com/maknz/slack) to communicate with the Slack API.
\ No newline at end of file
+This package uses the package [maknz/slack](https://github.com/maknz/slack) to communicate with the Slack API.
diff --git a/src/Extension/SlackExtension.php b/src/Extension/SlackExtension.php
index 86af6b6..31a6cc1 100644
--- a/src/Extension/SlackExtension.php
+++ b/src/Extension/SlackExtension.php
@@ -103,6 +103,11 @@ class SlackExtension extends Extension
      */
     protected $extendedMaxLength = 80;
 
+    /**
+     * @var int|null The maximum amount of errors to send
+     */
+    protected $extendedMaxErrors = 0;
+
     /**
      * Setup Slack client and message object.
      *
@@ -185,6 +190,10 @@ public function _initialize()
             $this->extended = true;
         }
 
+        if (isset($this->config['extendedMaxErrors'])) {
+            $this->extendedMaxErrors = max((int) $this->config['extendedMaxErrors'], 0);
+        }
+
         if (isset($this->config['extendedMaxLength'])) {
             $this->extendedMaxLength = intval($this->config['extendedMaxLength']);
         }
@@ -286,8 +295,14 @@ private function sendFailMessage(TestResult $result)
      */
     private function attachExtendedInformation(Message &$message, TestResult $result) {
         $fields = [];
+        $failures = array_merge($result->failures(), $result->errors());
+        $omittedFailures = 0;
+        if ($this->extendedMaxErrors > 0) {
+            $omittedFailures = count($failures) - $this->extendedMaxErrors;
+            $failures = array_slice($failures, 0, $this->extendedMaxErrors);
+        }
 
-        foreach (array_merge($result->failures(), $result->errors()) as $failure) {
+        foreach ($failures as $failure) {
             /**
              * @var $failure TestFailure
              */
@@ -309,6 +324,13 @@ private function attachExtendedInformation(Message &$message, TestResult $result
             ];
         }
 
+        if ($omittedFailures > 0) {
+            $fields[] = [
+                'title' => sprintf('%d other tests...', $omittedFailures),
+                'value' => '',
+            ];
+        }
+
         $message->attach([
             'color' => 'danger',
             'fields' => $fields