From 0b2051e5b963d9b1d777f130072dad20e8ceeaad Mon Sep 17 00:00:00 2001
From: "root@culturestrings" <root@culturestrings>
Date: Tue, 14 May 2024 15:31:20 +0000
Subject: postfix: spam rejection: require valid A and PTR records.

---
 public/fs/etc/postfix/main.cf.in | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'public')

diff --git a/public/fs/etc/postfix/main.cf.in b/public/fs/etc/postfix/main.cf.in
index 60cf63d..4eb5e5d 100644
--- a/public/fs/etc/postfix/main.cf.in
+++ b/public/fs/etc/postfix/main.cf.in
@@ -72,6 +72,12 @@ smtpd_helo_restrictions         = permit_mynetworks,
 	                          reject_unknown_helo_hostname,
 	                          reject_non_fqdn_helo_hostname
 
+smtpd_sender_restrictions       = permit_mynetworks,
+	                          permit_tls_all_clientcerts,
+	                          reject_unknown_reverse_client_hostname,
+	                          reject_unknown_client_hostname
+
+
 meta_directory                  = /usr/lib/postfix
 setgid_group                    = maildrop
 newaliases_path                 = /usr/bin/newaliases
-- 
cgit v1.2.3