DMARC: Fix forensic-report envelopes to permit non-null. Bug 1896

[exim.git] / doc / doc-txt / experimental-spec.txt

diff --git a/doc/doc-txt/experimental-spec.txt b/doc/doc-txt/experimental-spec.txt
index 7805c258e3404b7442c5952ec7876b2030ddf69a..0ad7f0de9a01f502fa49ff41072ed4c37e3a81ff 100644 (file)
--- a/doc/doc-txt/experimental-spec.txt
+++ b/doc/doc-txt/experimental-spec.txt
@@ -447,11 +447,19 @@ dmarc_history_file  Defines the location of a file to log results
                     directory of this file is writable by the user
                     exim runs as.
 
-dmarc_forensic_sender The email address to use when sending a
+dmarc_forensic_sender Alternate email address to use when sending a
                     forensic report detailing alignment failures
                     if a sender domain's dmarc record specifies it
                     and you have configured Exim to send them.
-                    Default: do-not-reply@$default_hostname
+
+                   If set, this is expanded and used for the
+                   From: header line; the address is extracted
+                   from it and used for the envelope from.
+                   If not set, the From: header is expanded from
+                   the dsn_from option, and <> is used for the
+                   envelope from.
+
+                    Default: unset.
 
 
 3. By default, the DMARC processing will run for any remote,