Reject IP with no RDNS

2022-01-02 09:16:39 +01:00 · 2022-01-02 09:16:39 +01:00 · 80e1fed0cc
parent af6698fc78
commit 80e1fed0cc
1 changed files with 1 additions and 0 deletions
--- a/roles/shell/files/etc/postfix/main.cf
+++ b/roles/shell/files/etc/postfix/main.cf
@ -67,6 +67,7 @@ smtpd_recipient_restrictions =
 reject_non_fqdn_recipient,
 reject_unknown_sender_domain,
 reject_unknown_recipient_domain,
+ reject_unknown_reverse_client_hostname,
 check_policy_service unix:private/policyd-spf,
 reject_rbl_client bl.fmb.la=127.0.1.[24;25;26;27;28],
 reject_rbl_client spam.dnsbl.anonmails.de,