SRS: fix encode operation for empty sender addresses.

[exim.git] / doc / doc-docbook / spec.xfpt

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index e2111554c12f78f77f42c0801f1103d5a93c9782..7b92a2f21cd8294e79ef19767b749efd94c187c2 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -42171,6 +42171,9 @@ There is no need to periodically change this key; a timestamp is also
 encoded.
 The second argument should be given as the envelope sender address before this
 encoding operation.
+.new
+If this value is empty the the expansion result will be empty.
+.wen
 The third argument should be the recipient domain of the message when
 it arrived at this system.
 .endlist