Use sender and recipient variables for msmtp

modules/monitoring.nix

@@ -2,28 +2,48 @@
 
 with pkgs;
 
-{
+let
+  sender = "akasroua@disroot.org";
+  recipient = "akasroua+smart@disroot.org";
+
+in {
   # Notify when a disk starts going haywire
   services.smartd = {
     enable = true;
     notifications.mail = {
       enable = true;
-      sender = "akasroua+smartd@disroot.org";
-      recipient = "akasroua@disroot.org";
+      sender = sender;
+      recipient = recipient;
       mailer = "${msmtp}/bin/msmtp -t --read-envelope-from";
     };
   };
 
+  # Notify about zpool problems
+  services.zfs.zed = {
+    enableMail = false;
+    settings = {
+      ZED_EMAIL_ADDR = [ "root" ];
+      ZED_EMAIL_PROG = "${msmtp}/bin/msmtp";
+      ZED_EMAIL_OPTS = "-s '@SUBJECT@' @ADDRESS@";
+    };
+  };
+
+  # HACK Use an alias to use msmtp instead of the ZED mailer
+  environment.etc.aliases.text = ''
+    root: ${recipient}
+  '';
+
   # Set up msmtp as notifier
   programs.msmtp = {
     enable = true;
     defaults = {
+      auth = true;
+      aliases = "/etc/aliases";
       port = 587;
       tls = true;
     };
     accounts = {
       default = {
-        auth = true;
         host = "disroot.org";
         user = "akasroua@disroot.org";
         passwordeval = "${coreutils}/bin/cat ${config.age.secrets.msmtp.path}";