diff --git a/dyndomain b/dyndomain
index b3d71f9..ada442a 100755
--- a/dyndomain
+++ b/dyndomain
@@ -33,7 +33,8 @@ def load_conf():
     zone_subdomain = conf['Zone']['subdomain'].lower()
     mail_from = conf['Mail']['from']
     mail_to   = conf['Mail']['to']
-    mail_ignore_list = [ host for host in conf['MailIgnore'] ]
+    mail_ignore_list = [ host.lower() for host in conf['MailIgnore'] ]
+    mail_ignore_list = [ '.'.join([h, zone_subdomain]) if not h.endswith('.'+zone_subdomain) else h for h in mail_ignore_list ]
 
     hosts_list = [ host.lower() for host in conf['Hosts'] ]
     hosts_ipv4_nat_list = [ host.lower() for host in conf['NatHosts'] ]