Make mailing more robust

templates/nix-config/misc/mail.nix

@@ -18,6 +18,11 @@ in
       type = lib.types.str;
       default = "EMAIL_ADDRESS";
     };
+    adminAddress = lib.mkOption {
+      description = "The admin email address to receive alerts in copy";
+      type = lib.types.str;
+      default = "admin@numbus.eu";
+    };
     smtpServer = lib.mkOption {
       description = "The SMTP server address";
       type = lib.types.str;
@@ -41,8 +46,18 @@ in
   };
 
   config = lib.mkIf cfg.enable {
+    environment.etc."aliases".text = ''
+      root: ${config.email.toAddress}, ${config.email.adminAddress}
+      default: ${config.email.toAddress}, ${config.email.adminAddress}
+    '';
+
     programs.msmtp = {
       enable = true;
+      defaults = {
+        aliases = "/etc/aliases";
+        timeout = 60;
+        syslog = "on";
+      };
       accounts.default = {
         auth = true;
         host = config.email.smtpServer;

templates/nix-config/misc/smart.nix

@@ -11,7 +11,7 @@
       mail = {
         enable = true;
         sender = config.email.fromAddress;
-        recipient = config.email.toAddress;
+        recipient = "${config.email.toAddress},${config.email.adminAddress}";
       };
     };
   };