Docs: expand SRS info

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

diff --git a/doc/doc-docbook/filter.xfpt b/doc/doc-docbook/filter.xfpt
index e2eece623a37e763fc26eaef3bc066f96839ba23..c1e1d8fce28c455285f3713ef968629e736e3d33 100644 (file)
--- a/doc/doc-docbook/filter.xfpt
+++ b/doc/doc-docbook/filter.xfpt
@@ -48,7 +48,7 @@
 . Copyright year.  Update this (only) when changing content.
 
 .macro copyyear
-2014
+2023
 .endmacro
 
 . ===========================================================================
@@ -78,7 +78,7 @@
 </revision></revhistory>
 <copyright><year>
 .copyyear
-           </year><holder>University of Cambridge</holder></copyright>
+           </year><holder>The Exim Maintainers</holder></copyright>
 </bookinfo>
 .literal off
 
@@ -88,7 +88,7 @@
 
 .chapter "Forwarding and filtering in Exim" "CHAPforandfilt"
 This document describes the user interfaces to Exim's in-built mail filtering
-facilities, and is copyright &copy; University of Cambridge &copyyear(). It
+facilities, and is copyright &copy; The Exim Maintainers &copyyear(). It
 corresponds to Exim version &version().
 
 
@@ -285,9 +285,11 @@ in RFC 3028, which should be read in conjunction with these notes.
 The Exim Sieve implementation offers the core as defined by RFC 3028,
 comparison tests, the subaddress parameter, the &*copy*&, &*envelope*&,
 &*fileinto*&, &*notify*&, and &*vacation*& extensions, but not the &*reject*&
-extension. Exim does not support message delivery notifications (MDNs), so
-adding it just to the Sieve filter (as required for &*reject*&) makes little
-sense.
+extension.
+.new
+Exim did not support message delivery notifications (MDNs) when Sieve handling
+was introduced, so &*reject*& (which need them) could not be supported.
+.wen
 
 In order for Sieve to work properly in Exim, the system administrator needs to
 make some adjustments to the Exim configuration. These are described in the
@@ -1343,7 +1345,7 @@ A &"contains"& test does a partial string match, having expanded both strings.
 .endd
 
 For a &"matches"& test, after expansion of both strings, the second one is
-interpreted as a regular expression. Exim uses the PCRE regular expression
+interpreted as a regular expression. Exim uses the PCRE2 regular expression
 library, which provides regular expressions that are compatible with Perl.
 
 The match succeeds if the regular expression matches any part of the first