diff --git a/plugins/node.d/postfix_mailvolume b/plugins/node.d/postfix_mailvolume
index 9d66963080..7a83df9c71 100755
--- a/plugins/node.d/postfix_mailvolume
+++ b/plugins/node.d/postfix_mailvolume
@@ -145,7 +145,7 @@ my $logfile = "$LOGDIR/$LOGFILE";
 
 if (! -f $logfile) {
     print "volume.value U\n";
-    exit 1;
+    exit 0;
 }
 
 # load the stored data