From 09ca3919fb89a98386fc6863699ed5d7835373f1 Mon Sep 17 00:00:00 2001
From: Mark Wooding <mdw@distorted.org.uk>
Date: Fri, 10 Jan 2014 11:27:26 +0000
Subject: [PATCH] spam.m4: Apply Exim's header validation to incoming messages.

---
 spam.m4 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/spam.m4 b/spam.m4
index 705fbee..d1b7c50 100644
--- a/spam.m4
+++ b/spam.m4
@@ -116,6 +116,9 @@ data_spam:
 	## If the client is trusted, don't bother with any of this.
 	accept	 hosts = +trusted
 
+	## Check header validity.
+	require	 verify = header_syntax
+
 	## Check the message for spam, comparing to the configured limit.
 	deny	 spam = exim:true
 		 message = Tinned meat product detected ($spam_score)
-- 
2.11.0