diff --git a/lib/configfiles/rhel_centos.xml b/lib/configfiles/rhel_centos.xml
index 37d58363..0aaa4043 100644
--- a/lib/configfiles/rhel_centos.xml
+++ b/lib/configfiles/rhel_centos.xml
@@ -180,7 +180,7 @@ query = SELECT gid FROM mail_users WHERE email = '%s'
 mydomain = <SERVERNAME>
 
 # should be different from $mydomain eg. "mail.$mydomain"
-myhostname = mail.$mydomain
+myhostname = $mydomain
 
 mydestination = $myhostname,
 	$mydomain,