diff --git a/hosts/containers/matemat/default.nix b/hosts/containers/matemat/default.nix
index 5798fc95..0782dd38 100644
--- a/hosts/containers/matemat/default.nix
+++ b/hosts/containers/matemat/default.nix
@@ -34,6 +34,15 @@
       };
     };
   };
+
+  services.ssmtp = {
+    enable = true;
+    root = "nek0@c3d2.de";
+    useSTARTTLS = true;
+    hostName = "mail.c3d2.de";
+    domain = "matemat.hq.c3d2.de";
+  };
+
   security.acme = {
     acceptTerms = true;
     email = "mail@c3d2.de";