diff --git a/nixos/hosts/osaka-linode-01/firewall.nix b/nixos/hosts/osaka-linode-01/firewall.nix
index 43501e0b..0e24fd2c 100644
--- a/nixos/hosts/osaka-linode-01/firewall.nix
+++ b/nixos/hosts/osaka-linode-01/firewall.nix
@@ -56,12 +56,12 @@
         { sourcePort = 1443;  proto = "tcp"; destination = "10.100.0.2:1443";  } # Headscale DERP (tcp)
         { sourcePort = 3478;  proto = "udp"; destination = "10.100.0.2:3478";  } # Headscale DERP (udp)
         { sourcePort = 10000; proto = "udp"; destination = "10.100.0.2:10000"; } # Headscale DERP (udp)
-        { sourcePort = 25;    proto = "tcp"; destination = "10.100.0.2:80";    } # Mailserver
-        { sourcePort = 143;   proto = "tcp"; destination = "10.100.0.2:80";    } # Mailserver
-        { sourcePort = 465;   proto = "tcp"; destination = "10.100.0.2:80";    } # Mailserver
-        { sourcePort = 587;   proto = "tcp"; destination = "10.100.0.2:80";    } # Mailserver
-        { sourcePort = 993;   proto = "tcp"; destination = "10.100.0.2:80";    } # Mailserver
-        { sourcePort = 4190;  proto = "tcp"; destination = "10.100.0.2:80";    } # Mailserver
+        { sourcePort = 25;    proto = "tcp"; destination = "10.100.0.2:25";    } # Mailserver
+        { sourcePort = 143;   proto = "tcp"; destination = "10.100.0.2:143";   } # Mailserver
+        { sourcePort = 465;   proto = "tcp"; destination = "10.100.0.2:465";   } # Mailserver
+        { sourcePort = 587;   proto = "tcp"; destination = "10.100.0.2:587";   } # Mailserver
+        { sourcePort = 993;   proto = "tcp"; destination = "10.100.0.2:993";   } # Mailserver
+        { sourcePort = 4190;  proto = "tcp"; destination = "10.100.0.2:4190";  } # Mailserver
       ];
     };
   };