diff --git a/hosts/redmine/default.nix b/hosts/redmine/default.nix
index d327168..6bc3d5e 100644
--- a/hosts/redmine/default.nix
+++ b/hosts/redmine/default.nix
@@ -90,7 +90,9 @@
   services.redmine.settings.production.email_delivery = {
     delivery_method = ":smtp";
     smtp_settings = {
-      address = "mail.${config.networking.domain}";
+      # @tan 27-03-2026: muss an "alten" mailserver senden
+      #address = "mail.${config.networking.domain}";
+      address = "mail.stura.htw-dresden.de";
       port = 25;
     };
 ####	Alternativ waere vielleicht auch das Versand von Mails durch das Programm sendmail (als lokale Installation) moeglich.