1 files changed, 1 insertions, 1 deletions

diff --git a/hel.nix b/hel.nix
index 95cfae0a..28a9ea02 100644
--- a/hel.nix
+++ b/hel.nix
@@ -201,7 +201,7 @@
 
         smtp_sender_dependent_authentication = yes
         sender_dependent_default_transport_maps = regexp:${pkgs.writeText "sender_relay" ''
-          /@math(ematik)?\.(lmu|uni-muenchen)\.de$/ smtp:uni-muenchen.de
+          /@math(ematik)?\.(lmu|uni-muenchen)\.de$/ smtp:smtp.mathematik.uni-muenchen.de
         ''}
         smtp_sasl_password_maps = texthash:/var/db/postfix/conf/sasl_passwd
         smtp_sasl_type = cyrus