From 208ef50997462a0f3b7c21d2f8bc96bf0b1f2a01 Mon Sep 17 00:00:00 2001
From: Steve Freegard <steve@stevefreegard.com>
Date: Mon, 19 Mar 2018 11:56:20 +0000
Subject: [PATCH] Add XM_CASE rule

---
 rules/headers_checks.lua | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/rules/headers_checks.lua b/rules/headers_checks.lua
index 0a7a3c16e..a97d7483f 100644
--- a/rules/headers_checks.lua
+++ b/rules/headers_checks.lua
@@ -1033,3 +1033,13 @@ rspamd_config.INVALID_RCPT_8BIT = {
   score = 6.0,
   group = 'headers'
 }
+
+rspamd_config.XM_CASE = {
+  callback = function (task)
+    local xm = task:get_header('X-mailer', true)
+    if (xm) then return true end
+  end,
+  description = 'X-mailer .vs. X-Mailer',
+  score = 0.5,
+  group = 'headers',
+}
-- 
2.39.5