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-rw-r--r--puppet/modules/site_postfix/manifests/mx.pp9
1 files changed, 9 insertions, 0 deletions
diff --git a/puppet/modules/site_postfix/manifests/mx.pp b/puppet/modules/site_postfix/manifests/mx.pp
index 81f10b77..49692d24 100644
--- a/puppet/modules/site_postfix/manifests/mx.pp
+++ b/puppet/modules/site_postfix/manifests/mx.pp
@@ -1,3 +1,6 @@
+#
+# configure mx node
+#
class site_postfix::mx {
$domain_hash = hiera('domain')
@@ -35,6 +38,12 @@ class site_postfix::mx {
# because the satellites need to have a different value
'smtp_tls_security_level':
value => 'may';
+ # reject inbound mail to system users
+ # see https://leap.se/code/issues/6829
+ # this blocks *only* mails to system users, that don't appear in the
+ # alias map
+ 'local_recipient_maps':
+ value => '$alias_maps';
}
include site_postfix::mx::smtpd_checks