diff --git a/DMS/sync_dynamodb_to_sieve.py b/DMS/sync_dynamodb_to_sieve.py
index 00c9dc6..05e1c9f 100644
--- a/DMS/sync_dynamodb_to_sieve.py
+++ b/DMS/sync_dynamodb_to_sieve.py
@@ -16,16 +16,14 @@ table = dynamodb.Table(TABLE)
 
 def generate_sieve(email, rules):
     """Generate Sieve script from DynamoDB rules"""
-    script = [
-        'require ["copy","vacation","variables"];',
-        '',
-        '# Skip if already processed by worker',
-        'if header :contains "X-SES-Worker-Processed" "" {',
-        '  keep;',
-        '  stop;',
-        '}',
-        ''
-    ]
+    script = ['require ["copy","vacation","variables"];']
+    
+    # Skip if already processed by worker
+    script.append('# Skip if already processed by worker')
+    script.append('if header :contains "X-SES-Worker-Processed" "" {')
+    script.append('  keep;')
+    script.append('  stop;')
+    script.append('}')
     
     # Forwards
     forwards = rules.get('forwards', [])
@@ -37,8 +35,20 @@ def generate_sieve(email, rules):
     # OOO
     if rules.get('ooo_active'):
         msg = rules.get('ooo_message', 'I am away')
+        content_type = rules.get('ooo_content_type', 'text')
+        
         script.append('# rule:[reply]')
-        script.append(f'vacation :days 1 :from "{email}" "{msg}";')
+        
+        if content_type == 'html':
+            # HTML mit :mime
+            script.append(f'vacation :days 1 :from "{email}" :mime text:')
+            script.append(f'Content-Type: text/html; charset=utf-8')
+            script.append(f'')
+            script.append(msg)
+            script.append('.')
+        else:
+            # Plain text
+            script.append(f'vacation :days 1 :from "{email}" "{msg}";')
     
     return '\n'.join(script)