diff --git a/nixos/server/package-configs/mail-server/default.nix b/nixos/server/package-configs/mail-server/default.nix
index 9f249ed..59caf66 100644
--- a/nixos/server/package-configs/mail-server/default.nix
+++ b/nixos/server/package-configs/mail-server/default.nix
@@ -84,6 +84,7 @@
       "no-reply@akkoma.gladtherescake.eu"
       "no-reply@social.gladtherescake.eu"
       "no-reply@git.lillianviolet.dev"
+      "ongebonden@gladtherescake.eu"
     ];
     certificateScheme = "acme-nginx";
     certificateDomains = [