diff --git a/imageroot/actions/configure-module/30Bind_user_domain b/imageroot/actions/configure-module/30Bind_user_domain
index 817a59b..4767471 100755
--- a/imageroot/actions/configure-module/30Bind_user_domain
+++ b/imageroot/actions/configure-module/30Bind_user_domain
@@ -17,3 +17,4 @@ providers = agent.list_service_providers(rdb, 'imap', 'tcp', {
 if providers:
     user_domain = providers[0]['user_domain']
     agent.bind_user_domains([user_domain])
+    agent.set_env('USER_DOMAIN', user_domain)