dump

nixos/hosts/mail/mailserver.nix

@@ -0,0 +1,39 @@
+{
+  config,
+  pkgs,
+  ...
+}: {
+  imports = [
+    (builtins.fetchTarball {
+      # Pick a release version you are interested in and set its hash, e.g.
+      url = "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/nixos-25.05/nixos-mailserver-nixos-25.05.tar.gz";
+      # To get the sha256 of the nixos-mailserver tarball, we can use the nix-prefetch-url command:
+      # release="nixos-25.05"; nix-prefetch-url "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/${release}/nixos-mailserver-${release}.tar.gz" --unpack
+      sha256 = "0jpp086m839dz6xh6kw5r8iq0cm4nd691zixzy6z11c4z2vf8v85";
+    })
+  ];
+
+  mailserver = {
+    enable = true;
+    fqdn = "mail.procopius.dk";
+    domains = ["procopius.dk"];
+
+    # A list of all login accounts. To create the password hashes, use
+    # nix-shell -p mkpasswd --run 'mkpasswd -sm bcrypt'
+    loginAccounts = {
+      "admin@procopius.dk" = {
+        hashedPasswordFile = config.sops.secrets.mailserver-admin-pass.path;
+        aliases = [
+          "@procopius.dk"
+          "postmaster@procopius.dk"
+        ];
+      };
+    };
+
+    # Use Let's Encrypt certificates. Note that this needs to set up a stripped
+    # down nginx and opens port 80.
+    certificateScheme = "acme-nginx";
+  };
+  security.acme.acceptTerms = true;
+  security.acme.defaults.email = "david.mikael@proton.me";
+}