More taint notes

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 2dd6e44be99e69f775b15578f8dfe3633ee58403..d62ceafd73c5047de20d559ed24fa03cf719c115 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -10147,7 +10147,7 @@ newline at the very end. For the &%header%& and &%bheader%& expansion, for
 those headers that contain lists of addresses, a comma is also inserted at the
 junctions between headers. This does not happen for the &%rheader%& expansion.
 
-.cindex "tainted data"
+.cindex "tainted data" "message headers"
 When the headers are from an incoming message,
 the result of expanding any of these variables is tainted.
 
@@ -14093,6 +14093,10 @@ taint mode of the Perl interpreter. You are encouraged to set this
 option to a true value. To avoid breaking existing installations, it
 defaults to false.
 
+.new
+&*Note*&: This is entirely separate from Exim's tainted-data tracking.
+.wen
+
 
 .section "Calling Perl subroutines" "SECID86"
 When the configuration file includes a &%perl_startup%& option you can make use