X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/cd6ab265aa53f6bc030e5dfaf113f45d182be40c..5dec5c7c0e98805bf8f345fe16b36ba676f24c4b:/doc/doc-docbook/spec.xfpt

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index d0f310f57..04f2387cf 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -972,7 +972,7 @@ User filters are run as part of the routing process, described below.
 .cindex "Darwin"
 .cindex "Cygwin"
 .cindex "exim_msgdate"
-Every message handled by Exim is given a &'message id'& which is sixteen
+Every message handled by Exim is given a &'message id'& which is 23
 characters long. It is divided into three parts, separated by hyphens, for
 example &`16VDhn-000000001bo-D342`&. Each part is a sequence of letters and digits,
 normally encoding numbers in base 62. However, in the Darwin operating
@@ -7349,6 +7349,11 @@ dot-separated components; a key such as &`*fict.example`&
 in a database file is useless, because the asterisk in a partial matching
 subject key is always followed by a dot.
 
+When the lookup is done from a string-expansion,
+the variables &$1$& and &$2$& contain the wild and non-wild parts of the key
+during the expansion of the replacement text.
+They return to their previous values at the end of the lookup item.
+
 
 
 
@@ -10694,6 +10699,7 @@ shell must be invoked directly, such as with:
 .code
 ${run{/bin/bash -c "/usr/bin/id >/tmp/id"}{yes}{yes}}
 .endd
+Note that &$value$& will not persist beyond the reception of a single message.
 
 .vindex "&$runrc$&"
 The return code from the command is put in the variable &$runrc$&, and this
@@ -29674,10 +29680,10 @@ A HUP signal is sufficient for this.
 The value &"system"& results in no caching under GnuTLS.
 
 The macro _HAVE_TLS_CA_CACHE will be defined if the suffix for "system"
-is acceptable in configurations for the Exim executavble.
+is acceptable in configurations for the Exim executable.
 
 Caching of the system Certificate Authorities bundle can
-save siginificant time and processing on every TLS connection
+save significant time and processing on every TLS connection
 accepted by Exim.
 
 
@@ -29847,10 +29853,10 @@ A HUP signal is sufficient for this.
 The value &"system"& results in no caching under GnuTLS.
 
 The macro _HAVE_TLS_CA_CACHE will be defined if the suffix for "system"
-is acceptable in configurations for the Exim executavble.
+is acceptable in configurations for the Exim executable.
 
 Caching of the system Certificate Authorities bundle can
-save siginificant time and processing on every TLS connection
+save significant time and processing on every TLS connection
 initiated by Exim.