diff --git a/modules/dgn-notify/default.nix b/modules/dgn-notify/default.nix
index 54a4949..4a9daa5 100644
--- a/modules/dgn-notify/default.nix
+++ b/modules/dgn-notify/default.nix
@@ -12,9 +12,12 @@
     };
   };
   config = lib.mkIf config.dgn-notify.enable {
+    services.mail.sendmailSetuidWrapper.group = lib.mkForce "mail";
+    users.groups.mail = { };
+
     programs.msmtp = {
       enable = true;
-      setSendmail = false;
+      setSendmail = true;
       accounts.default = {
         tls = true;
         tls_starttls = false;