Initial version of a SpamAssassin service.

The configuration is expected to be managed by the user in /etc/spamassassin.

modules/module-list.nix

@@ -88,6 +88,7 @@
   ./services/mail/freepops.nix
   ./services/mail/mail.nix
   ./services/mail/postfix.nix
+  ./services/mail/spamassassin.nix
   ./services/misc/autofs.nix
   ./services/misc/disnix.nix
   ./services/misc/felix.nix

modules/services/mail/spamassassin.nix

@@ -0,0 +1,45 @@
+{ config, pkgs, ... }:
+
+with pkgs.lib;
+
+let
+
+  cfg = config.services.spamassassin;
+
+in
+
+{
+
+  ###### interface
+
+  options = {
+
+    services.spamassassin = {
+
+      enable = mkOption {
+        default = false;
+        description = "Whether to run the SpamAssassin daemon.";
+      };
+
+    };
+
+  };
+
+
+  ###### implementation
+
+  config = mkIf cfg.enable {
+
+    # This makes comfortable for users to run 'spamassassin'.
+    environment.systemPackages = [ pkgs.spamassassin ];
+
+    jobs.spamd = {
+      description = "Spam Assassin Server";
+      startOn = "started networking and filesystem";
+      environment.TZ = config.time.timeZone;
+      exec = "spamd -C /etc/spamassassin/init.pre --siteconfigpath=/etc/spamassassin --debug --pidfile=/var/run/spamd.pid";
+    };
+
+  };
+
+}