From 4f37a4b254a1f547a355bd49ecce699702e70c54 Mon Sep 17 00:00:00 2001
From: System administrator
Date: Sun, 13 Oct 2019 02:43:49 +0200
Subject: acl: verify reverse host by lookup

---
 conf.d/020_acl.conf | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/conf.d/020_acl.conf b/conf.d/020_acl.conf
index 5ed0fa7..1ff3d1e 100644
--- a/conf.d/020_acl.conf
+++ b/conf.d/020_acl.conf
@@ -14,6 +14,9 @@ acl_check_mail_introduction:
   require  condition     = ${if def:sender_helo_name}
            set acl_m_msg = HELO/EHLO command required.
 
+  require  verify        = reverse_host_lookup/defer_ok
+           set acl_m_msg = HELO/EHLO lookup yielded mismatch.
+
   accept
 
 
-- 
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