From: Frank Brehm <frank@brehm-online.com>
Date: Wed, 3 Jan 2024 12:07:34 +0000 (+0100)
Subject: daily autocommit
X-Git-Url: https://git.uhu-banane.org/?a=commitdiff_plain;h=f4188e94ef71b9a120837fea09130bb526e50b75;p=config%2Fhelga-hetzner%2Fetc.git

daily autocommit
---

diff --git a/postfix/main.cf b/postfix/main.cf
index 8752831..62e1fb0 100644
--- a/postfix/main.cf
+++ b/postfix/main.cf
@@ -368,3 +368,11 @@ mailbox_size_limit = 524288000
 smtpd_banner = $myhostname ESMTP $mail_name $mail_version
 smtpd_sasl_authenticated_header = yes
 smtpd_tls_received_header = yes
+
+# Optionally disconnect remote SMTP clients that send bare newlines,
+# but allow local clients with non-standard SMTP implementations
+# such as netcat, fax machines, or load balancer health checks.
+#
+smtpd_forbid_bare_newline = yes
+smtpd_forbid_bare_newline_exclusions = $mynetworks
+