diff --git a/hosts/pretalx/default.nix b/hosts/pretalx/default.nix
index ea5195f9..c97fef09 100644
--- a/hosts/pretalx/default.nix
+++ b/hosts/pretalx/default.nix
@@ -36,6 +36,12 @@
         "--log-level=info"
       ];
       nginx.domain = "talks.datenspuren.de";
+      settings.mail = {
+        from = "noreply@c3d2.de";
+        host = "mail.c3d2.de";
+        port = "587";
+        tls = true;
+      };
     };
   };