diff --git a/target/opendmarc/opendmarc.conf b/target/opendmarc/opendmarc.conf
index efdbc4bb..dec9e96f 100644
--- a/target/opendmarc/opendmarc.conf
+++ b/target/opendmarc/opendmarc.conf
@@ -3,7 +3,7 @@ UMask    0002
 PidFile  /var/run/opendmarc.pid
 Syslog   true
 
-RejectFailures  false
+RejectFailures  true
 
 IgnoreHosts  /etc/opendmarc/ignore.hosts
 HistoryFile  /var/run/opendmarc/opendmarc.dat