From c27ab1df218daf0cdf9bfd0f474175c5f53f0d9c Mon Sep 17 00:00:00 2001
From: Jeremy Harris <jgh146exb@wizmail.org>
Date: Sat, 8 Mar 2014 18:50:16 +0000
Subject: [PATCH] Expand documentation on use of dnslists in an IPv6
 environment. Bug 1369

---
 doc/doc-docbook/spec.xfpt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 28c2ceb62..4faf78d90 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -28611,6 +28611,13 @@ deny   condition = ${if isip4{$sender_host_address}}
        dnslists  = some.list.example
 .endd
 
+If an explicit key is being used for a DNS lookup and it may be an IPv6
+address you should specify alternate list separators for both the outer
+(DNS list name) list and inner (lookup keys) list:
+.code
+       dnslists = <; dnsbl.example.com/<|$acl_m_addrslist
+.endd
+
 .section "Rate limiting incoming messages" "SECTratelimiting"
 .cindex "rate limiting" "client sending"
 .cindex "limiting client sending rates"
-- 
2.25.1