From: Jeremy Harris <jgh146exb@wizmail.org>
Date: Thu, 3 Oct 2019 18:25:18 +0000 (+0100)
Subject: PRDR: add implementation notes in sample configuration
X-Git-Tag: exim-4.93-RC0~29
X-Git-Url: https://vcs.fsf.org/?a=commitdiff_plain;h=2f6c7b1aa0bf4a675d0ec95646b27f5c71bf06c2;p=exim.git

PRDR: add implementation notes in sample configuration
---

diff --git a/src/src/configure.default b/src/src/configure.default
index 95e7d49d7..245cc3925 100644
--- a/src/src/configure.default
+++ b/src/src/configure.default
@@ -265,6 +265,11 @@ dns_dnssec_ok = 1
 # Enable an efficiency feature.  We advertise the feature; clients
 # may request to use it.  For multi-recipient mails we then can
 # reject or accept per-user after the message is received.
+# This supports recipient-dependent content filtering; without it
+# you have to temp-reject any recipients after the first that have
+# incompatible filtering, and do the filtering in the data ACL.
+# Even with this enabled, you must support the old style for peers
+# not flagging support for PRDR (visible via $prdr_requested).
 #
 .ifdef _HAVE_PRDR
 prdr_enable = true