Install mailman

nixos/machines/hera/configuration.nix

@@ -25,6 +25,7 @@ in
     ../../roles/laminar
     ../../roles/kassandra-server.nix
     ../../roles/foundryvtt.nix
+    ../../roles/mailman.nix
     ../../roles/home-assistant
     ./web.nix
     ./mail.nix

nixos/roles/mailman.nix

@@ -0,0 +1,32 @@
+{ ... }:
+let
+  hostname = "lists.maralorn.de";
+  admin = "admin@maralorn.de";
+in
+{
+  services = {
+    mailman = {
+      enable = true;
+      webHosts = [ hostname ];
+      serve.enable = true;
+      enablePostfix = true;
+      siteOwner = admin;
+    };
+    postfix = {
+      relayDomains = [ "hash:/var/lib/mailman/data/postfix_domains" ];
+      config =
+        let
+          lmtp = [ "hash:/var/lib/mailman/data/postfix_lmtp" ];
+        in
+        {
+          transport_maps = lmtp;
+          local_recipient_maps = lmtp;
+        };
+    };
+    nginx.virtualHosts.${hostname} = {
+      enableACME = true;
+      forceSSL = true;
+    };
+  };
+
+}