diff --git a/roles/postfix/templates/main.cf.j2 b/roles/postfix/templates/main.cf.j2
index 2173961..27f243c 100644
--- a/roles/postfix/templates/main.cf.j2
+++ b/roles/postfix/templates/main.cf.j2
@@ -64,3 +64,7 @@ smtp_tls_CApath = /etc/ssl/certs/
 smtpd_tls_session_cache_database=btree:/var/lib/postfix/smtpd_tls_session_cache
 smtp_tls_session_cache_database=btree:/var/lib/postfix/smtp_tls_session_cache
 
+# Reject mail if user if overquota
+smtpd_recipient_restrictions =
+    reject_unauth_destination
+    check_policy_service unix:private/quota-status