From abcd3a4a2ea2c5f3c9ac215453488d6a2bcf2584 Mon Sep 17 00:00:00 2001
From: Jakub Czajka <jakub@ekhem.eu.org>
Date: Sun, 6 Nov 2022 15:48:03 +0100
Subject: [PATCH] [postfix] Fill missing header fields.

Gmail requires a `MessageId` header field. However, not all clients
set this field and gmail reject emails. This commit instructs
`postfix` to add missing headers fields (eg. `MessageId`).
---
 postfix/main.cf | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/postfix/main.cf b/postfix/main.cf
index 0e7c03d..dbdc517 100644
--- a/postfix/main.cf
+++ b/postfix/main.cf
@@ -24,3 +24,6 @@ smtpd_tls_cert_file = ${mail_ssl_cert_dir}/fullchain.pem
 smtpd_tls_key_file = ${mail_ssl_cert_dir}/privkey.pem
 smtpd_tls_mandatory_ciphers = high
 smtpd_tls_security_level = encrypt
+
+# Message rewrite
+always_add_missing_headers = yes
-- 
2.39.5