diff --git a/git_system.nix b/git_system.nix
index 4ddd559..9ba9ba9 100644
--- a/git_system.nix
+++ b/git_system.nix
@@ -74,7 +74,7 @@ in
           ENABLED = true;
           PROTOCOL = "smtp";
           SMTP_ADDR = "80.151.91.109";
-          SMTP_PORT = 25;
+          SMTP_PORT = 2525;
           FROM = "noreply@ptspaper.de";
           USER = "noreply@ptspaper.de";
         };