TLS: Default tls_advertise_hosts to "*". Bug 1709

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

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index f9a8efa982615c95177757c94e00bddb6b9f4507..101df6b905b35c9b91f1086b2bb73900cccb7806 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -4800,8 +4800,8 @@ help with this. See the comments in &_src/EDITME_& for details.
 Exim's configuration file is divided into a number of different parts. General
 option settings must always appear at the start of the file. The other parts
 are all optional, and may appear in any order. Each part other than the first
-is introduced by the word &"begin"& followed by the name of the part. The
-optional parts are:
+is introduced by the word &"begin"& followed by at least one literal
+space, and the name of the part. The optional parts are:
 
 .ilist
 &'ACL'&: Access control lists for controlling incoming SMTP mail (see chapter
@@ -7321,7 +7321,7 @@ The TIME parameter (also a number of seconds) is passed to the server to
 set a server-side limit on the time taken to complete a search.
 
 The SERVERS parameter allows you to specify an alternate list of ldap servers
-to use for an individual lookup.  The global ldap_servers option provides a
+to use for an individual lookup.  The global &%ldap_default_servers%& option provides a
 default list of ldap servers, and a single lookup can specify a single ldap
 server to use.  But when you need to do a lookup with a list of servers that is
 different than the default list (maybe different order, maybe a completely
@@ -7537,13 +7537,12 @@ a query is successfully processed. The result of a query may be that no data is
 found, but that is still a successful query. In other words, the list of
 servers provides a backup facility, not a list of different places to look.
 
+.new
 The &%quote_mysql%&, &%quote_pgsql%&, and &%quote_oracle%& expansion operators
 convert newline, tab, carriage return, and backspace to \n, \t, \r, and \b
 respectively, and the characters single-quote, double-quote, and backslash
-itself are escaped with backslashes. The &%quote_pgsql%& expansion operator, in
-addition, escapes the percent and underscore characters. This cannot be done
-for MySQL because these escapes are not recognized in contexts where these
-characters are not special.
+itself are escaped with backslashes.
+.wen
 
 .section "Specifying the server in the query" "SECTspeserque"
 For MySQL and PostgreSQL lookups (but not currently for Oracle and InterBase),
@@ -11990,6 +11989,13 @@ a single-component name, Exim calls &[gethostbyname()]& (or
 qualified host name. See also &$smtp_active_hostname$&.
 
 
+.new
+.vitem &$prdr_requested$&
+.cindex "PRDR" "variable for"
+This variable is set to &"yes"& if PRDR was requested by the client for the
+current message, otherwise &"no"&.
+.wen
+
 .vitem &$prvscheck_address$&
 This variable is used in conjunction with the &%prvscheck%& expansion item,
 which is described in sections &<<SECTexpansionitems>>& and
@@ -16552,7 +16558,9 @@ runs. This is appropriate behaviour for obtaining wall-clock time on some, but
 unfortunately not all, operating systems.
 
 
-.option tls_advertise_hosts main "host list&!!" unset
+.new
+.option tls_advertise_hosts main "host list&!!" *
+.wen
 .cindex "TLS" "advertising"
 .cindex "encryption" "on SMTP connection"
 .cindex "SMTP" "encrypted connection"
@@ -16560,6 +16568,11 @@ When Exim is built with support for TLS encrypted connections, the availability
 of the STARTTLS command to set up an encrypted session is advertised in
 response to EHLO only to those client hosts that match this option. See
 chapter &<<CHAPTLS>>& for details of Exim's support for TLS.
+.new
+Note that the default value requires that a certificate be supplied
+using the &%tls_certificate%& option.  If no certificate is available then
+the &%tls_advertise_hosts%& option should be set empty.
+.wen
 
 
 .option tls_certificate main string&!! unset
@@ -20711,6 +20724,9 @@ headers that some sites insist on.
 This option sets up a filtering (in the Unix shell sense) process for messages
 at transport time. It should not be confused with mail filtering as set up by
 individual users or via a system filter.
+.new
+If unset, or expanding to an empty string, no filtering is done.
+.wen
 
 When the message is about to be written out, the command specified by
 &%transport_filter%& is started up in a separate, parallel process, and
@@ -27394,8 +27410,12 @@ for some or all recipients.
 PRDR may be used to support per-user content filtering.  Without it
 one must defer any recipient after the first that has a different
 content-filter configuration.  With PRDR, the RCPT-time check
-for this can be disabled when the MAIL-time $smtp_command included
-"PRDR".  Any required difference in behaviour of the main DATA-time
+.new
+.cindex "PRDR" "variable for"
+for this can be disabled when the variable &$prdr_requested$&
+is &"yes"&.
+.wen
+Any required difference in behaviour of the main DATA-time
 ACL should however depend on the PRDR-time ACL having run, as Exim
 will avoid doing so in some situations (e.g.  single-recipient mails).
 
@@ -31127,7 +31147,7 @@ In the latter case, the range is tried in strict order.
 
 Elements after the first for Unix sockets, or second for TCP socket,
 are options.
-The supported option are:
+The supported options are:
 .code
 pri=<priority>      Selection priority
 weight=<value>      Selection bias