diff --git a/docker-compose.yml b/docker-compose.yml
index 583e49f..4123c80 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -24,6 +24,8 @@ services:
       HA_TOKEN: ${HA_TOKEN:?set HA_TOKEN}
       OPENWEATHER_API_KEY: ${OPENWEATHER_API_KEY:?set OPENWEATHER_API_KEY}
       CKAL_XLSX_DIR: /data/ckal-xlsx
+      STRATO_SYNC_ENABLED: ${STRATO_SYNC_ENABLED:-true}
+      BRANDSCHUTZ_MAIL_ENABLED: ${BRANDSCHUTZ_MAIL_ENABLED:-true}
     volumes:
       - profile_pictures:/var/www/html/intranet_repo/general_files/profile_pictures
       - content_news:/var/www/html/intranet_repo/projects/contentpanel/insertion/news
diff --git a/docker/scheduler.py b/docker/scheduler.py
index 3cf2ad9..7f05d83 100644
--- a/docker/scheduler.py
+++ b/docker/scheduler.py
@@ -37,23 +37,65 @@ def prepare_ssh_key() -> Path:
 
 
 def calendar_sync():
-    run([PYTHON, str(ROOT / 'ckal_upload_client/client.py')], cwd=ROOT / 'ckal_upload_client')
-    run([PYTHON, str(ROOT / 'pdf_python/create_pdf.py')], cwd=ROOT / 'pdf_python')
-    run(['/bin/bash', str(ROOT / 'pdf_python/pdf_to_png.sh')], cwd=ROOT / 'pdf_python')
+    # CKalender-XLSX verarbeiten
+    run(
+        [PYTHON, str(ROOT / 'ckal_upload_client/client.py')],
+        cwd=ROOT / 'ckal_upload_client'
+    )
+
+    # PDF erzeugen
+    run(
+        [PYTHON, str(ROOT / 'pdf_python/create_pdf.py')],
+        cwd=ROOT / 'pdf_python'
+    )
+
+    # PDF in Dashboard-PNGs umwandeln
+    run(
+        ['/bin/bash', str(ROOT / 'pdf_python/pdf_to_png.sh')],
+        cwd=ROOT / 'pdf_python'
+    )
+
+    # STRATO-Synchronisation kann z. B. im DEV deaktiviert werden
+    strato_sync_enabled = os.getenv(
+        'STRATO_SYNC_ENABLED',
+        'true'
+    ).strip().lower() in ('1', 'true', 'yes', 'on')
+
+    if not strato_sync_enabled:
+        print('STRATO Sync deaktiviert', flush=True)
+        print('Calendar Sync erfolgreich (ohne STRATO)', flush=True)
+        return
 
     required('STRATO_SSH_USER')
     required('STRATO_REMOTE_PATH')
+
     host = os.getenv('STRATO_SSH_HOST', 'ssh.strato.de')
     port = os.getenv('STRATO_SSH_PORT', '22')
-    known_hosts = Path(os.getenv('STRATO_KNOWN_HOSTS_FILE', '/run/secrets/known_hosts'))
+
+    known_hosts = Path(
+        os.getenv(
+            'STRATO_KNOWN_HOSTS_FILE',
+            '/run/secrets/known_hosts'
+        )
+    )
+
     if not known_hosts.is_file():
-        raise RuntimeError(f'known_hosts missing: {known_hosts}')
+        raise RuntimeError(
+            f'known_hosts missing: {known_hosts}'
+        )
+
     key = prepare_ssh_key()
+
     if not PDF_OUTPUT.is_file() or PDF_OUTPUT.stat().st_size == 0:
-        raise RuntimeError(f'PDF missing/empty: {PDF_OUTPUT}')
+        raise RuntimeError(
+            f'PDF missing/empty: {PDF_OUTPUT}'
+        )
 
     run([
-        '/usr/bin/scp', '-O', '-q', '-P', port,
+        '/usr/bin/scp',
+        '-O',
+        '-q',
+        '-P', port,
         '-i', str(key),
         '-o', 'IdentitiesOnly=yes',
         '-o', 'BatchMode=yes',
@@ -62,24 +104,41 @@ def calendar_sync():
         str(PDF_OUTPUT),
         f"{required('STRATO_SSH_USER')}@{host}:{required('STRATO_REMOTE_PATH')}",
     ])
+
     print('Calendar Sync erfolgreich', flush=True)
 
 
 def brandschutz_once_per_month():
     now = datetime.now()
+
     if now.day != 1 or now.hour < 8:
         return
 
+    brandschutz_enabled = os.getenv(
+        'BRANDSCHUTZ_MAIL_ENABLED',
+        'true'
+    ).strip().lower() in ('1', 'true', 'yes', 'on')
+
+    if not brandschutz_enabled:
+        print('Brandschutz-Mail deaktiviert', flush=True)
+        return
+
     marker = STATE_DIR / 'brandschutz-last-attempt'
     month = now.strftime('%Y-%m')
+
     if marker.exists() and marker.read_text().strip() == month:
         return
 
-    # At-most-once: erst markieren, dann ausführen. Bei Fehler manuell prüfen und Marker löschen.
+    # At-most-once: erst markieren, dann ausführen
     marker.write_text(month + '\n')
-    print(f'Brandschutz-Lauf {month}', flush=True)
-    run(['/usr/local/bin/php', '/var/www/html/intranet_repo/projects/brandschutz/brandschutz_cron.php'])
 
+    print(f'Brandschutz-Lauf {month}', flush=True)
+
+    run([
+        '/usr/local/bin/php',
+        '/var/www/html/intranet_repo/projects/brandschutz/brandschutz_cron.php'
+    ])
+    
 
 def main():
     STATE_DIR.mkdir(parents=True, exist_ok=True)