Add $smtp_command_history variable

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

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 6fb150428ca1a09f8154f29660507cd536c67551..84540508f88978c25306be3f7a61fb3b673ba811 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -4274,7 +4274,7 @@ or &%-bs%& is used. For &%-bh%&, the protocol is forced to one of the standard
 SMTP protocol names (see the description of &$received_protocol$& in section
 &<<SECTexpvar>>&). For &%-bs%&, the protocol is always &"local-"& followed by
 one of those same names. For &%-bS%& (batched SMTP) however, the protocol can
-be set by &%-oMr%&.
+be set by &%-oMr%&. Repeated use of this option is not supported.
 
 .vitem &%-oMs%&&~<&'host&~name'&>
 .oindex "&%-oMs%&"
@@ -4374,6 +4374,7 @@ host name and its colon can be omitted when only the protocol is to be set.
 Note the Exim already has two private options, &%-pd%& and &%-ps%&, that refer
 to embedded Perl. It is therefore impossible to set a protocol value of &`d`&
 or &`s`& using this option (but that does not seem a real limitation).
+Repeated use of this option is not supported.
 
 .vitem &%-q%&
 .oindex "&%-q%&"
@@ -12792,6 +12793,15 @@ argument, that is, the text that follows the command name, with leading white
 space removed. Following the introduction of &$smtp_command$&, this variable is
 somewhat redundant, but is retained for backwards compatibility.
 
+.new
+.vitem &$smtp_command_history$&
+.cindex SMTP "command history"
+.vindex "&$smtp_command_history$&"
+A comma-separated list (with no whitespace) of the most-recent SMTP commands
+received, in time-order left to right.  Only a limited number of commands
+are remembered.
+.wen
+
 .vitem &$smtp_count_at_connection_start$&
 .vindex "&$smtp_count_at_connection_start$&"
 This variable is set greater than zero only in processes spawned by the Exim
@@ -19468,6 +19478,10 @@ instead of TRY_AGAIN. That is why the default action is to try a DNS
 lookup first. Only if that gives a definite &"no such host"& is the local
 function called.
 
+&*Compatibility*&: From Exim 4.85 until fixed for 4.90, there was an
+inadvertent constraint that a transport name as an option had to be the last
+option specified.
+
 
 
 If no IP address for a host can be found, what happens is controlled by the
@@ -22127,10 +22141,14 @@ the obvious value which users understand most easily.
 
 The value of the option is expanded, and must then be a numerical value
 (decimal point allowed), optionally followed by one of the letters K, M, or G,
-for kilobytes, megabytes, or gigabytes. If Exim is running on a system with
+for kilobytes, megabytes, or gigabytes, optionally followed by a slash
+and further option modifiers. If Exim is running on a system with
 large file support (Linux and FreeBSD have this), mailboxes larger than 2G can
 be handled.
 
+The option modifier &%no_check%& can be used to force delivery even if the over
+quota condition is met. The quota gets updated as usual.
+
 &*Note*&: A value of zero is interpreted as &"no quota"&.
 
 The expansion happens while Exim is running as root, before it changes uid for
@@ -22165,6 +22183,8 @@ can only be used if &%quota%& is also set. The value is expanded; an expansion
 failure causes delivery to be deferred. A value of zero is interpreted as
 &"no quota"&.
 
+The option modifier &%no_check%& can be used to force delivery even if the over
+quota condition is met. The quota gets updated as usual.
 
 .option quota_is_inclusive appendfile boolean true
 See &%quota%& above.
@@ -31702,14 +31722,18 @@ an address (which may be an IP address and port, or the path of a Unix socket),
 a commandline to send (may include a single %s which will be replaced with
 the path to the mail file to be scanned),
 an RE to trigger on from the returned data,
-an RE to extract malware_name from the returned data.
+and an RE to extract malware_name from the returned data.
 For example:
 .code
-av_scanner = sock:127.0.0.1 6001:%s:(SPAM|VIRUS):(.*)\$
+av_scanner = sock:127.0.0.1 6001:%s:(SPAM|VIRUS):(.*)$
 .endd
-Default for the socket specifier is &_/tmp/malware.sock_&.
-Default for the commandline is &_%s\n_&.
-Both regular-expressions are required.
+.new
+Note that surrounding whitespace is stripped from each option, meaning
+there is no way to specify a trailing newline.
+The socket specifier and both regular-expressions are required.
+Default for the commandline is &_%s\n_& (note this does have a trailing newline);
+specify an empty element to get this.
+.wen
 
 .vitem &%sophie%&
 .cindex "virus scanners" "Sophos and Sophie"
@@ -38640,7 +38664,7 @@ The algorithm used. One of 'rsa-sha1' or 'rsa-sha256'.
 .vitem &%$dkim_canon_body%&
 The body canonicalization method. One of 'relaxed' or 'simple'.
 
-.vitem &%dkim_canon_headers%&
+.vitem &%$dkim_canon_headers%&
 The header canonicalization method. One of 'relaxed' or 'simple'.
 
 .vitem &%$dkim_copiedheaders%&