diff --git a/hosts/frikandel/email.nix b/hosts/frikandel/email.nix
index 3b54d3f..9f92a1a 100644
--- a/hosts/frikandel/email.nix
+++ b/hosts/frikandel/email.nix
@@ -207,7 +207,7 @@ in {
         # replace rcpt to catchall and deliver it there
         destination $(local_domains) {
           modify {
-            replace_rcpt regexp ".*" "mail@$(primary_domain)"
+            replace_rcpt regexp "(.+)@(.+)" "mail@$2"
           }
           deliver_to &local_mailboxes
         }