diff --git a/lambdas/email_sender/src/index.py b/lambdas/email_sender/src/index.py
index 3629673..c34c19d 100644
--- a/lambdas/email_sender/src/index.py
+++ b/lambdas/email_sender/src/index.py
@@ -21,6 +21,7 @@ def lambda_handler(event, context):
     ses = boto3.client('ses')
     s3 = boto3.client('s3')
 
+    print("multipart_mime_type: ", multipart_mime_type)
     msg = MIMEMultipart(multipart_mime_type)
     msg['Subject'] = subject
     msg['From'] = sender_email