diff --git a/hosts/mobilizon/default.nix b/hosts/mobilizon/default.nix
index b8326b9d..f3a5ed2a 100644
--- a/hosts/mobilizon/default.nix
+++ b/hosts/mobilizon/default.nix
@@ -13,7 +13,7 @@
         ":mobilizon".":instance" = {
           name = "C3D2 Mobilizon";
           hostname = "mobilizon.c3d2.de";
-          registrations_open = true;
+          registrations_open = false;
           default_language = "de";
         };
         ":mobilizon"."Mobilizon.Web.Email.Mailer" = {
@@ -24,12 +24,12 @@
           port = 587;
           ssl = false;
           tls = { value = ":if_available"; _elixirType = "atom"; };
-          allowed_tls_versions = { value = ''[:tlsv1, :"tlsv1.1", :"tlsv1.2"]''; _elixirType = "raw"; };
+          allowed_tls_versions = { value = ''[:"tlsv1.1", :"tlsv1.2"]''; _elixirType = "raw"; };
           retries = 1;
           no_mx_lookups = true;
         };
         ":mobilizon".":logger" = {
-          level = { value = ":all"; _elixirType = "atom"; };
+          level = { value = ":info"; _elixirType = "atom"; };
         };
       };
     };