diff --git a/manifests/params.pp b/manifests/params.pp
index 3715491..bb92f73 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -147,7 +147,7 @@ $fn_logencoding             = 'auto',
 $fn_enabled                 = false,
 $fn_filter                  = '%(__name__)s',
 $fn_destemail               = 'root@localhost',
-$fn_sender                  = 'root@localhost',
+$fn_sender                  = "fail2ban@${::fqdn}",
 $fn_mta                     = 'sendmail',
 $fn_protocol                = 'tcp',
 $fn_chain                   = 'INPUT',