Make "system" location for certificate CA bundle the default

2 files changed, 8 insertions, 6 deletions

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index dc7e4f75c..7dfc4d623 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -16478,7 +16478,7 @@ preference order of the available ciphers. Details are given in sections
 See &%tls_verify_hosts%& below.
 
 
-.option tls_verify_certificates main string&!! unset
+.option tls_verify_certificates main string&!! system
 .cindex "TLS" "client certificate verification"
 .cindex "certificate" "verification of client"
 The value of this option is expanded, and must then be either the
@@ -16489,7 +16489,8 @@ match &%tls_verify_hosts%& or &%tls_try_verify_hosts%&.
 
 The "system" value for the option will use a
 system default location compiled into the SSL library.
-This is not available for GnuTLS versions preceding 3.0.20 and an explicit location
+This is not available for GnuTLS versions preceding 3.0.20,
+and will be taken as empty; an explicit location
 must be specified.
 
 The use of a directory for the option value is not avilable for GnuTLS versions
@@ -23458,7 +23459,7 @@ limited to being the initial component of a 3-or-more component FQDN.
 There is no equivalent checking on client certificates.
 
 
-.option tls_verify_certificates smtp string&!! unset
+.option tls_verify_certificates smtp string&!! system
 .cindex "TLS" "server certificate verification"
 .cindex "certificate" "verification of server"
 .vindex "&$host$&"
@@ -23470,7 +23471,8 @@ a file or directory containing permitted certificates for servers,
 for use when setting up an encrypted connection.
 
 The "system" value for the option will use a location compiled into the SSL library.
-This is not available for GnuTLS versions preceding 3.0.20 and an explicit location
+This is not available for GnuTLS versions preceding 3.0.20; a value of "system"
+is taken as empty and an explicit location
 must be specified.
 
 The use of a directory for the option value is not avilable for GnuTLS versions
@@ -26479,7 +26481,7 @@ if it requests it. If the server is Exim, it will request a certificate only if
 &%tls_verify_hosts%& or &%tls_try_verify_hosts%& matches the client.
 
 If the &%tls_verify_certificates%& option is set on the &(smtp)& transport, it
-specified a collection of expected server certificates.
+specifies a collection of expected server certificates.
 These may be the system default set (depeding on library version),
 a file or,
 depnding on liibrary version, a directory,
diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index f2954b945..76d18a87c 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -18,7 +18,7 @@ JH/04 Certificate name checking on server certificates, when exim is a client,
       EXPERIMENTAL_CERTNAMES is withdrawn.
 
 JH/05 The value of the tls_verify_certificates smtp transport and main options
-      can now be the word "system" to access the system default CA bundle.
+      default to the word "system" to access the system default CA bundle.
       For GnuTLS, only version 3.0.20 or later.