Remilia: updates

services: add znc and some random changes
networking: random changes
mailserver: add masti@weirdnatto.in
and some other misc changes

hosts/remilia/mailserver.nix

@@ -1,13 +1,20 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 {
-  mailserver = {
+  mailserver = with lib; rec {
     enable = true;
     fqdn = "mail.weirdnatto.in";
-    domains = [ "weirdnatto.in" ];
+    sendingFqdn = fqdn;
+    domains = singleton "weirdnatto.in";
+    certificateDomains = singleton "mail.weirdnatto.in";
+    certificateScheme = 2;
     loginAccounts = {
       "natto@weirdnatto.in" = {
         hashedPasswordFile = "/var/secrets/natto@weirdnatto.in.key";
-        aliases = ["@weirdnatto.in"];
+        aliases = [ "@weirdnatto.in" ];
+      };
+      "masti@weirdnatto.in" = {
+        hashedPasswordFile = "/var/secrets/masti@weirdnatto.in.key";
+        aliases = [ "@weirdnatto.in" ];
       };
     };
     enablePop3 = false;