From 83d6c87415215fdbc1df0fc73283fa7897836862 Mon Sep 17 00:00:00 2001
From: Markus Hauschild <markus@moepman.eu>
Date: Thu, 4 Jan 2024 20:42:15 +0100
Subject: [PATCH] mail: smtp smuggling related settings

---
 roles/mail/templates/postfix/main.cf.j2 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/roles/mail/templates/postfix/main.cf.j2 b/roles/mail/templates/postfix/main.cf.j2
index 815b3ba..eb3e95d 100644
--- a/roles/mail/templates/postfix/main.cf.j2
+++ b/roles/mail/templates/postfix/main.cf.j2
@@ -99,6 +99,9 @@ smtpd_recipient_restrictions =
     reject_unauth_pipelining
     reject_unverified_recipient
 
+# SMTP Smuggling
+smtpd_forbid_bare_newline = yes
+
 # rspamd Milter setup
 smtpd_milters = inet:localhost:11332
 non_smtpd_milters = inet:localhost:11332