diff --git a/exim.changes b/exim.changes
index a591a3b..3ac7ddb 100644
--- a/exim.changes
+++ b/exim.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Jul  4 11:15:20 UTC 2017 - meissner@suse.com
+
+- specify users with ref:mail, to make them dynamic. bsc#1046971
+
 -------------------------------------------------------------------
 Mon Jun 19 16:27:45 UTC 2017 - meissner@suse.com
 
diff --git a/exim.spec b/exim.spec
index 8e9459f..ac9efea 100644
--- a/exim.spec
+++ b/exim.spec
@@ -160,8 +160,8 @@ cat <<-EOF > Local/Makefile
 	# see src/EDITME for comments.
 	BIN_DIRECTORY=/usr/sbin
 	CONFIGURE_FILE=/etc/exim/exim.conf
-	EXIM_USER=mail
-	EXIM_GROUP=mail
+	EXIM_USER=ref:mail
+	EXIM_GROUP=ref:mail
 	SPOOL_DIRECTORY=/var/spool/exim
 	ROUTER_ACCEPT=yes
 	ROUTER_DNSLOOKUP=yes