hosts/suwako: add mailserver for amneesh.com

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

hosts/suwako/default.nix

@@ -10,6 +10,7 @@
     ./hardware.nix
     ./boot.nix
     ./services.nix
+    ./mailserver.nix
   ];
 
   time.timeZone = "Asia/Kolkata";

hosts/suwako/mailserver.nix

@@ -0,0 +1,26 @@
+{
+  conf,
+  ...
+}:
+{
+  mailserver =
+    let
+      domain = conf.network.addresses.domain.amneesh;
+    in
+    rec {
+      enable = true;
+      stateVersion = 1;
+      fqdn = "mail.${domain}";
+      sendingFqdn = fqdn;
+      domains = [ domain ];
+      certificateDomains = [ "mail.${domain}" ];
+      certificateScheme = "acme-nginx";
+      loginAccounts = {
+        "me@${domain}" = {
+          hashedPasswordFile = "/var/secrets/me@${domain}.key";
+        };
+      };
+      enablePop3 = false;
+      enablePop3Ssl = false;
+    };
+}