From 6db56fb25ad146cc33d72dfe85c2ff4f977aad53 Mon Sep 17 00:00:00 2001 From: Gregor Kleen Date: Thu, 25 Jun 2026 11:13:14 +0200 Subject: smtpd_sender_restrictions: reject_plaintext_session --- hosts/surtr/email/default.nix | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'hosts/surtr/email') diff --git a/hosts/surtr/email/default.nix b/hosts/surtr/email/default.nix index 4fa0d440..59639bec 100644 --- a/hosts/surtr/email/default.nix +++ b/hosts/surtr/email/default.nix @@ -201,6 +201,10 @@ in { smtpd_helo_required = true; smtpd_helo_restrictions = "permit"; + smtpd_sender_restrictions = [ + "reject_plaintext_session" + ]; + smtpd_recipient_restrictions = [ "reject_unauth_pipelining" "reject_non_fqdn_recipient" -- cgit v1.2.3