diff --git a/flake.lock b/flake.lock
index b0f905e..98edfba 100644
--- a/flake.lock
+++ b/flake.lock
@@ -180,11 +180,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1704383912,
-        "narHash": "sha256-Be7O73qoOj/z+4ZCgizdLlu+5BkVvO2KO299goZ9cW8=",
+        "lastModified": 1704311514,
+        "narHash": "sha256-j6JsfCv31bW7LzV06q2L/27QZ4k1Zq7lEq2AR9R150A=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "26b8adb300e50efceb51fff6859a1a6ba1ade4f7",
+        "rev": "fcbc70a7ee064f2b65dc1fac1717ca2a9813bbe6",
         "type": "github"
       },
       "original": {
@@ -296,11 +296,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1704194953,
-        "narHash": "sha256-RtDKd8Mynhe5CFnVT8s0/0yqtWFMM9LmCzXv/YKxnq4=",
+        "lastModified": 1703961334,
+        "narHash": "sha256-M1mV/Cq+pgjk0rt6VxoyyD+O8cOUiai8t9Q6Yyq4noY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "bd645e8668ec6612439a9ee7e71f7eac4099d4f6",
+        "rev": "b0d36bd0a420ecee3bc916c91886caca87c894e9",
         "type": "github"
       },
       "original": {
diff --git a/hosts/falkenstein/modules/mail/default.nix b/hosts/falkenstein/modules/mail/default.nix
index d1aff0c..02bf95b 100644
--- a/hosts/falkenstein/modules/mail/default.nix
+++ b/hosts/falkenstein/modules/mail/default.nix
@@ -62,7 +62,7 @@ in
       domain = "${domain}";
       origin = "${domain}";
       destination = [ "${hostname}" "${domain}" "localhost" ];
-      networks = [ "127.0.0.1" ];
+      networks = [ "127.0.0.1" "141.30.30.169" ];
       sslCert = "/var/lib/acme/${hostname}/fullchain.pem";
       sslKey = "/var/lib/acme/${hostname}/key.pem";
       config = {
diff --git a/hosts/thinkpad/default.nix b/hosts/thinkpad/default.nix
index 9f08ec6..4ee618c 100755
--- a/hosts/thinkpad/default.nix
+++ b/hosts/thinkpad/default.nix
@@ -14,11 +14,11 @@
       ./modules/virtualisation
     ];
 
-  # nixpkgs.hostPlatform = {
-  #   gcc.arch = "tigerlake";
-  #   gcc.tune = "tigerlake";
-  #   system = "x86_64-linux";
-  # };
+  nixpkgs.hostPlatform = {
+    gcc.arch = "tigerlake";
+    gcc.tune = "tigerlake";
+    system = "x86_64-linux";
+  };
 
   nix.settings.system-features = [ "gccarch-tigerlake" ];