From 84a61ada1c1dbfd9712da9d04dbb17467274eef4 Mon Sep 17 00:00:00 2001 From: Jeremy Harris Date: Sun, 20 Jan 2013 18:18:01 +0000 Subject: [PATCH] Add PRDR configuration notes. --- doc/doc-txt/experimental-spec.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/doc/doc-txt/experimental-spec.txt b/doc/doc-txt/experimental-spec.txt index 0b2e83534..7f2d46ab5 100644 --- a/doc/doc-txt/experimental-spec.txt +++ b/doc/doc-txt/experimental-spec.txt @@ -24,6 +24,14 @@ as part of an EHLO response, a new "acl_data_smtp_prdr" ACL (called for each recipient, after data arrives but before the data ACL), and a new smtp transport option "hosts_try_prdr". +PRDR may be used to support per-user content filtering. Without it +one must defer any recipient after the first that has a different +content-filter configuration. With PRDR, the RCPT-time check +for this can be disabled when the MAIL-time $smtp_command included +"PRDR". Any required difference in behaviour of the main DATA-time +ACL should however depend on the PRDR-time ACL having run, as Exim +will avoid doing so in some situations (eg. single-recipient mails). + OCSP Stapling support -- 2.25.1