diff --git a/hosts/nachtigall/apps/matrix/synapse.nix b/hosts/nachtigall/apps/matrix/synapse.nix
index b3f5ff6d..f80e906a 100644
--- a/hosts/nachtigall/apps/matrix/synapse.nix
+++ b/hosts/nachtigall/apps/matrix/synapse.nix
@@ -60,9 +60,9 @@ in {
         invite_client_location = "https://chat.pub.solar";
         notif_for_new_users = true;
         notif_from = "Matrix <no-reply@pub.solar>";
-        require_transport_security = false;
-        smtp_host = "matrix-mailer";
-        smtp_port = 8025;
+        require_transport_security = true;
+        smtp_host = "mx2.greenbaum.cloud";
+        smtp_port = 465;
       };
 
       enable_media_repo = true;
diff --git a/secrets/matrix-synapse-secret-config.yaml.age b/secrets/matrix-synapse-secret-config.yaml.age
index 276c7b57..81c92087 100644
Binary files a/secrets/matrix-synapse-secret-config.yaml.age and b/secrets/matrix-synapse-secret-config.yaml.age differ