diff --git a/system/mail-server/postfix.nix b/system/mail-server/postfix.nix
index 2fe5080..4b6d1e8 100644
--- a/system/mail-server/postfix.nix
+++ b/system/mail-server/postfix.nix
@@ -40,6 +40,7 @@ in {
       123rf@ktiu.net REJECT
       jcb-co.jp-ktiu@ktiu.net REJECT
       info@ktiu.net REJECT
+      linkedin@ktiu.net REJECT
     '';