diff --git a/templates/postfix/main.cf.j2 b/templates/postfix/main.cf.j2
index 4330fa3..f4478ae 100644
--- a/templates/postfix/main.cf.j2
+++ b/templates/postfix/main.cf.j2
@@ -84,6 +84,9 @@ smtpd_sender_login_maps = pgsql:/etc/postfix/pgsql/virtual_sender_maps.cf
 smtpd_sasl_type = dovecot
 smtpd_sasl_path = private/auth
 
+# Special address that discards all mails
+transport_maps = inline:{discard@{{ inventory_hostname }}=discard:}
+
 # PostSRS integration
 sender_canonical_maps = tcp:localhost:10001
 sender_canonical_classes = envelope_sender