diff --git a/strato-production.yaml b/strato-production.yaml
index e9959a5..bbf3406 100644
--- a/strato-production.yaml
+++ b/strato-production.yaml
@@ -63,7 +63,7 @@
             port: 465
             username: christiansteinle@arcor.de
             password: "{{ mail-password }}"
-            to: {{ item.value.email }}
+            to: "{{ item.value.email }}"
             subject: Datenbank Backup
             body: System {{ ansible_hostname }} has been successfully provisioned.
             attach: