diff --git a/roles/openshift-apps/noggin/templates/noggin.cfg.py b/roles/openshift-apps/noggin/templates/noggin.cfg.py
index 9c0c6ce99c..a77db89059 100644
--- a/roles/openshift-apps/noggin/templates/noggin.cfg.py
+++ b/roles/openshift-apps/noggin/templates/noggin.cfg.py
@@ -46,6 +46,7 @@ AVATAR_DEFAULT_TYPE = "retro"
 MAIL_DOMAIN_BLOCKLIST = [
     "fedoraproject.org",
     "centosproject.org",
+    "0ooos3.cn",
 ]
 
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