base/postfix: remove, base:nullmailer: init

base/default.nix

@@ -30,9 +30,9 @@
     ./services/journald-upload.nix
     ./services/logrotate.nix
     ./services/nginx.nix
+    ./services/nullmailer.nix
     ./services/openssh.nix
     ./services/polkit.nix
-    ./services/postfix.nix
     ./services/prometheus-flake-input-exporter.nix
     ./services/prometheus-node-exporter.nix
     ./services/prometheus-systemd-exporter.nix

base/services/nullmailer.nix

@@ -0,0 +1,15 @@
+{ config, lib, ... }:
+{
+  services.nullmailer = {
+    enable = true;
+
+    config = {
+      adminaddr = "root@pvv.ntnu.no";
+      defaultdomain = "pvv.ntnu.no";
+      defaulthost = "pvv.ntnu.no";
+
+      me = lib.mkDefault config.networking.fqdn;
+      remotes = lib.mkDefault "smtp.pvv.ntnu.no smtp port=587 starttls";
+    };
+  };
+}

base/services/postfix.nix

@@ -1,22 +0,0 @@
-{ config, pkgs, lib, ... }:
-let
-  cfg = config.services.postfix;
-in
-{
-  services.postfix = {
-    enable = true;
-
-    settings.main = {
-      myhostname = "${config.networking.hostName}.pvv.ntnu.no";
-      mydomain = "pvv.ntnu.no";
-
-      # Nothing should be delivered to this machine
-      mydestination = [ ];
-
-      relayhost = [ "smtp.pvv.ntnu.no:465" ];
-
-      smtp_tls_wrappermode = "yes";
-      smtp_tls_security_level = "encrypt";
-    };
-  };
-}

hosts/temmie/services/userweb/mail.nix

@@ -1,14 +1,6 @@
 { config, lib, pkgs, ... }:
 {
-  services.postfix.enable = lib.mkForce false;
-
-  services.nullmailer = {
-    enable = true;
-    config = {
-      me = config.networking.fqdn;
-      remotes = "mail.pvv.ntnu.no smtp --port=25";
-    };
-  };
+  services.nullmailer.enable = true;
 
   services.bro = {
     enable = true;