X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/d4dc049f9a9e80ac3a470fd644418668eefedecb..ec5bf0b83235d01ad0b2865d1819a603441f50f2:/test/confs/0570

diff --git a/test/confs/0570 b/test/confs/0570
index 1c2ca0a25..962e76bb0 100644
--- a/test/confs/0570
+++ b/test/confs/0570
@@ -36,5 +36,6 @@ smtp:
   driver = smtp
   port = PORT_D
   OPTION
+  max_parallel = 1
 
 # End