diff --git a/nixos/queen/mail-server.nix b/nixos/queen/mail-server.nix
index 9db9919..72c3a08 100644
--- a/nixos/queen/mail-server.nix
+++ b/nixos/queen/mail-server.nix
@@ -19,6 +19,7 @@
   mailserver = {
     enable = true;
     enableImap = true;
+    enableSubmission = true;
     fqdn = "mail.gladtherescake.eu";
     domains = ["nextcloud.gladtherescake.eu"];