diff --git a/testsite/group_vars/mail.yml b/testsite/group_vars/mail.yml
index 6f1dacffbcbb1e0e9cd45bfc82ee6cc1e61f1dde..5e8fddf1f98f29c0a4baaef8dc5daa936e60a9a6 100644
--- a/testsite/group_vars/mail.yml
+++ b/testsite/group_vars/mail.yml
@@ -30,4 +30,8 @@ smtp_rbl:
   - bl.spamcop.net
   - zen.spamhaus.org
 
-mail_postmaster: postmaster@example.com
\ No newline at end of file
+mail_postmaster: postmaster@example.com
+
+smtp_allow_relay_from:
+  - ldap.example.com
+  - xmpp.example.com