diff --git a/src/utils/detectSpam.ts b/src/utils/detectSpam.ts
index 7102cac..0a790ce 100644
--- a/src/utils/detectSpam.ts
+++ b/src/utils/detectSpam.ts
@@ -6,16 +6,22 @@ import LanguageDetect from 'languagedetect'
  * A message is classified as spam based on the following criteria:
  *   1. The message contains a URL i.e., it includes `https://`.
  *   2. The message is not written in the German language.
+ *   3. The message contains the domain name dreikoenige.berlin
+ *   4. The message contains the dollar sign
  *
  * Returns a boolean value indicating whether the message is spam (`true`) or not (`false`).
  */
 export const isSpam = (message: string): boolean => {
 
-  if (message.includes('https://')) {
+  if (message.includes('https://') || message.includes('http://') || message.includes('$')) {
       const lngDetector = new LanguageDetect();
       const language = lngDetector.detect(message)[0][0];
       return language !== 'german';
   }
 
+  if (message.includes('dreikoenige.berlin')) {
+    return true;
+  }
+
   return false;
 }
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