diff --git a/bi/settings/__init__.py b/bi/settings/__init__.py
index aff2f006..c17a6740 100644
--- a/bi/settings/__init__.py
+++ b/bi/settings/__init__.py
@@ -490,7 +490,7 @@ def email_server_is_configured():
 CSRF_TIME_LIMIT = int(os.environ.get("DEEPBI_CSRF_TIME_LIMIT", 3600 * 6))
 
 # Email blocked domains, use delimiter comma to separated multiple domains
-BLOCKED_DOMAINS = set_from_string(os.environ.get("DEEPBI_BLOCKED_DOMAINS", "qq.com"))
+BLOCKED_DOMAINS = set_from_string(os.environ.get("DEEPBI_BLOCKED_DOMAINS", ""))
 
 AI_WEB_SERVER = os.environ.get('AI_WEB_SERVER', '127.0.0.1:8340')