--- a/agents/check_mk_agent.linux
+++ b/agents/check_mk_agent.linux
@@ -1272,12 +1272,12 @@
     if inpath nullmailer-send; then
         echo '<<<nullmailer_mailq>>>'
         if [ -d /var/spool/nullmailer/queue ]; then
-            COUNT=$(find /var/spool/nullmailer/queue -type f | wc -l)
+            COUNT=$(find /var/spool/nullmailer/queue -name "[!.]*" -type f | wc -l)
             SIZE=$(du -sb /var/spool/nullmailer/queue | awk '{print $1 }')
             echo "${SIZE} ${COUNT} deferred"
         fi
         if [ -d /var/spool/nullmailer/failed ]; then
-            COUNT=$(find /var/spool/nullmailer/failed -type f | wc -l)
+            COUNT=$(find /var/spool/nullmailer/failed -name "[!.]*" -type f | wc -l)
             SIZE=$(du -sb /var/spool/nullmailer/failed | awk '{print $1 }')
             echo "${SIZE} ${COUNT} failed"
         fi