diff --git a/flake.lock b/flake.lock
index b7d77cc..b0c845f 100644
--- a/flake.lock
+++ b/flake.lock
@@ -400,11 +400,11 @@
         "wlroots": "wlroots"
       },
       "locked": {
-        "lastModified": 1664023338,
-        "narHash": "sha256-S2f84PqAS75UXK0Mdf9uBn89a4UVNthA3RnSKB+sP7k=",
+        "lastModified": 1664050038,
+        "narHash": "sha256-Q+dLA0bPW0RqYs9ONiu5/KalJYVjoFX2kG6p9G/hzDc=",
         "owner": "hyprwm",
         "repo": "Hyprland",
-        "rev": "73dbacd16d16d8a58d9c12e2a3ebcf4538faf55b",
+        "rev": "fad5fc587d4281a5d399e61dc1243bc333d94d4d",
         "type": "github"
       },
       "original": {
@@ -511,11 +511,11 @@
         "utils": "utils_4"
       },
       "locked": {
-        "lastModified": 1663984587,
-        "narHash": "sha256-BNq/NWT74mCg5eYo1NC9K+oJ1KqwQOL+fDesyO20a3E=",
+        "lastModified": 1664070839,
+        "narHash": "sha256-7nBBrjhSLVtAo/skhqCR+5kfQyaRm7T2Ac2EVg17iLc=",
         "owner": "jyooru",
         "repo": "nix-minecraft-servers",
-        "rev": "03e15c3aa8220c59d8b8c7454a288fc163fdf646",
+        "rev": "c58fd256602b7bda6fecdced6b881a4731a1af1a",
         "type": "github"
       },
       "original": {
@@ -637,11 +637,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1663945282,
-        "narHash": "sha256-vfYvUrzeaJUxndH76VsRJiqcQz6C090rqduGC3y6X4g=",
+        "lastModified": 1664101652,
+        "narHash": "sha256-cgr3fHJxF59yz3zVMsQYf4PuGEnDOAOIPUltsMFNRWE=",
         "owner": "NULLx76",
         "repo": "nixpkgs",
-        "rev": "28444d170b02c92ae8cc9c103631c53e594f75e6",
+        "rev": "e64f013182bc9003121a03de0a0af30cf3ffe762",
         "type": "github"
       },
       "original": {
diff --git a/nixos/hosts/olympus/mailserver/configuration.nix b/nixos/hosts/olympus/mailserver/configuration.nix
index b0e7067..bcdfe2f 100644
--- a/nixos/hosts/olympus/mailserver/configuration.nix
+++ b/nixos/hosts/olympus/mailserver/configuration.nix
@@ -33,16 +33,17 @@ let vs = config.vault-secrets.secrets; in
     enable = true;
     fqdn = "mail.0x76.dev";
     domains = [ "0x76.dev" ];
+    certificateScheme = 3;
 
     loginAccounts = {
       "v@0x76.dev" = {
         hashedPasswordFile = "${vs.mailserver}/v@0x76.dev";
       };
+      "keycloak@0x76.dev" = {
+        hashedPasswordFile = "${vs.mailserver}/keycloak@0x76.dev";
+      };
     };
 
-    certificateScheme = 3;
-
-
     indexDir = "/var/lib/dovecot/indices";
     fullTextSearch = {
       enable = true;
@@ -56,6 +57,9 @@ let vs = config.vault-secrets.secrets; in
     };
   };
 
+  services.postfix.relayHost = "smtp.ziggozakelijk.nl";
+  services.postfix.relayPort = 587;
+
   services.roundcube = {
     enable = true;
     package = pkgs.roundcube.withPlugins (plugins: [ plugins.persistent_login ]);
@@ -82,5 +86,5 @@ let vs = config.vault-secrets.secrets; in
   };
 
   security.acme.acceptTerms = true;
-  security.acme.defaults.email = "victor@xirion.net";
+  security.acme.defaults.email = "v@0x76.dev";
 }
diff --git a/nixos/hosts/olympus/wireguard/configuration.nix b/nixos/hosts/olympus/wireguard/configuration.nix
index f2c8364..355ad5e 100644
--- a/nixos/hosts/olympus/wireguard/configuration.nix
+++ b/nixos/hosts/olympus/wireguard/configuration.nix
@@ -23,6 +23,7 @@ let vs = config.vault-secrets.secrets; in
   networking.firewall.allowedUDPPorts = [
     config.networking.wireguard.interfaces.wg0.listenPort
   ];
+  networking.firewall.checkReversePath = false;
 
   vault-secrets.secrets.wireguard = {
     services = [ "wireguard-wg0" ];
@@ -30,10 +31,15 @@ let vs = config.vault-secrets.secrets; in
 
   networking.nat = {
     enable = true;
-    internalInterfaces = [ "wg0" ];
+    internalInterfaces = [ "wg0" "eth0" ];
     externalInterface = "eth0";
   };
 
+  boot.kernel.sysctl = {
+    "net.ipv4.ip_forward" = 1;
+    "net.ipv6.conf.all.forwarding" = 1;
+  };
+
   services.prometheus.exporters.wireguard = {
     enable = true;
     openFirewall = true;
@@ -65,7 +71,7 @@ let vs = config.vault-secrets.secrets; in
         # Useful setup video for opnsense: https://www.youtube.com/watch?v=RoXHe5dqCM0
         # https://docs.opnsense.org/manual/how-tos/wireguard-s2s.html
         publicKey = "KgqLhmUMX6kyTjRoa/GOCrZOvXNE5HWYuOr/T3v8/VI=";
-        allowedIPs = [ "10.100.0.5/32" "192.168.0.0/23" "10.10.10.0/24"];
+        allowedIPs = [ "10.100.0.5/32" "192.168.0.0/23" "10.10.10.0/24" ];
         endpoint = "80.60.83.220:51820";
       }
     ];