diff --git a/localstack/services/ses/provider.py b/localstack/services/ses/provider.py
index 04b471ad8bde8..ee8d8de39f777 100644
--- a/localstack/services/ses/provider.py
+++ b/localstack/services/ses/provider.py
@@ -275,6 +275,9 @@ def send_raw_email(
             if not source:
                 LOGGER.warning("Source not specified. Rejecting message.")
                 raise MessageRejected()
+        
+        if destinations is None:
+            destinations = []
 
         if destinations is None:
             destinations = []