diff --git a/roles/base/files/postfix/main.cf/main.cf.copr b/roles/base/files/postfix/main.cf/main.cf.copr
index f15bc63d5a..c19468e005 100644
--- a/roles/base/files/postfix/main.cf/main.cf.copr
+++ b/roles/base/files/postfix/main.cf/main.cf.copr
@@ -685,3 +685,7 @@ readme_directory = /usr/share/doc/postfix-2.4.5/README_FILES
 
 message_size_limit = 20971520
 inet_protocols = ipv4
+
+# This has to be set in newer postfix 3.3.0 or later or it will refuse to
+# send any email. ;(
+smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination