diff --git a/roles/base/files/postfix/main.cf/main.cf.mailman b/roles/base/files/postfix/main.cf/main.cf.mailman
index 7ef7a0cd87..c11a6854c4 100644
--- a/roles/base/files/postfix/main.cf/main.cf.mailman
+++ b/roles/base/files/postfix/main.cf/main.cf.mailman
@@ -694,3 +694,7 @@ owner_request_special = no
 transport_maps = hash:/var/lib/mailman3/data/postfix_lmtp
 local_recipient_maps = hash:/var/lib/mailman3/data/postfix_lmtp
 relay_domains = hash:/var/lib/mailman3/data/postfix_domains
+
+smtpd_sender_restrictions =
+	check_sender_access /etc/postfix/sender_access
+	permit