diff --git a/host_vars/unhb4/unhb4.yml b/host_vars/unhb4/unhb4.yml
index af2bfd2..3b4ef53 100644
--- a/host_vars/unhb4/unhb4.yml
+++ b/host_vars/unhb4/unhb4.yml
@@ -10,7 +10,7 @@ container_names:
     element_web: "element_web.server4"
 
 authentik_error_reporting: "false"
-authentik_email_host: "mail.un-hack-bar.de"
+authentik_email_host: "imehl.un-hack-bar.de"
 authentik_email_port: "587"
 authentik_email_use_tls: "true"
 authentik_email_use_ssl: "false"