Docs: Remove trailing whitespace

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

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index e1eaf3f70e973613a2a165889f000cdd4751d340..2d29b17c89d2c852fa172f61138d3461cb2a1c24 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -6060,7 +6060,7 @@ address_pipe:
 .endd
 This transport is used for handling deliveries to pipes that are generated by
 redirection (aliasing or users' &_.forward_& files). The &%return_output%&
-option specifies that any output on stdout or stderr generated by the pipe is to 
+option specifies that any output on stdout or stderr generated by the pipe is to
 be returned to the sender.
 .code
 address_file:
@@ -9264,10 +9264,11 @@ by earlier ACLs are visible.
 Upper case and lower case letters are synonymous in header names. If the
 following character is white space, the terminating colon may be omitted, but
 this is not recommended, because you may then forget it when it is needed. When
-white space terminates the header name, it is included in the expanded string.
-If the message does not contain the given header, the expansion item is
-replaced by an empty string. (See the &%def%& condition in section
-&<<SECTexpcond>>& for a means of testing for the existence of a header.)
+white space terminates the header name, this white space is included in the
+expanded string.  If the message does not contain the given header, the
+expansion item is replaced by an empty string. (See the &%def%& condition in
+section &<<SECTexpcond>>& for a means of testing for the existence of a
+header.)
 
 If there is more than one header with the same name, they are all concatenated
 to form the substitution string, up to a maximum length of 64K. Unless
@@ -16668,6 +16669,10 @@ must if set expand to the absolute path to a file which contains a current
 status proof for the server's certificate, as obtained from the
 Certificate Authority.
 
+.new
+Usable for GnuTLS 3.4.4 or 3.3.17 or OpenSSL 1.1.0 (or later).
+.wen
+
 
 .option tls_on_connect_ports main "string list" unset
 .cindex SSMTP
@@ -22694,7 +22699,7 @@ See the &%timeout_defer%& option for how timeouts are handled.
 .cindex "&(pipe)& transport" "logging output"
 If this option is set, and the status returned by the command is
 one of the codes listed in &%temp_errors%& (that is, delivery was deferred),
-and any output was produced on stdout or stderr, the first line of it is 
+and any output was produced on stdout or stderr, the first line of it is
 written to the main log.
 
 
@@ -26754,7 +26759,9 @@ starts retrying to fetch an OCSP proof some time before its current
 proof expires.  The downside is that it requires server support.
 
 Unless Exim is built with the support disabled,
-or with GnuTLS earlier than version 3.1.3,
+.new
+or with GnuTLS earlier than version 3.3.16 / 3.4.8
+.wen
 support for OCSP stapling is included.
 
 There is a global option called &%tls_ocsp_file%&.
@@ -35307,6 +35314,9 @@ selection marked by asterisks:
 &` incoming_interface         `&  local interface on <= and => lines
 &` incoming_port              `&  remote port on <= lines
 &`*lost_incoming_connection   `&  as it says (includes timeouts)
+.new
+&` outgoing_interface         `&  local interface on => lines
+.wen
 &` outgoing_port              `&  add remote port to => lines
 &`*queue_run                  `&  start and end queue runs
 &` queue_time                 `&  time on queue for one recipient
@@ -35432,9 +35442,11 @@ client's ident port times out.
 &%incoming_interface%&: The interface on which a message was received is added
 to the &"<="& line as an IP address in square brackets, tagged by I= and
 followed by a colon and the port number. The local interface and port are also
-added to other SMTP log lines, for example &"SMTP connection from"& and to
-rejection lines
-and (despite the name) the local interface is added to &"=>"& lines..
+added to other SMTP log lines, for example &"SMTP connection from"&, to
+rejection lines, and (despite the name) to outgoing &"=>"& and &"->"& lines.
+.new
+The latter can be disabled by turning off the &%outgoing_interface%& option.
+.wen
 .next
 .cindex "log" "incoming remote port"
 .cindex "port" "logging remote"
@@ -35452,13 +35464,30 @@ important with the widening use of NAT (see RFC 2505).
 &%lost_incoming_connection%&: A log line is written when an incoming SMTP
 connection is unexpectedly dropped.
 .next
+.cindex "log" "outgoing interface"
+.cindex "log" "local interface"
+.cindex "log" "local address and port"
+.cindex "TCP/IP" "logging local address and port"
+.cindex "interface" "logging"
+.new
+&%outgoing_interface%&: If &%incoming_interface%& is turned on, then the
+interface on which a message was sent is added to delivery lines as an I= tag
+followed by IP address in square brackets. You can disable this by turning
+off the &%outgoing_interface%& option.
+.wen
+.next
 .cindex "log" "outgoing remote port"
 .cindex "port" "logging outgoint remote"
 .cindex "TCP/IP" "logging ougtoing remote port"
 &%outgoing_port%&: The remote port number is added to delivery log lines (those
-containing => tags) following the IP address. This option is not included in
-the default setting, because for most ordinary configurations, the remote port
-number is always 25 (the SMTP port).
+containing => tags) following the IP address.
+.new
+The local port is also added if &%incoming_interface%& and
+&%outgoing_interface%& are both enabled.
+.wen
+This option is not included in the default setting, because for most ordinary
+configurations, the remote port number is always 25 (the SMTP port), and the
+local port is a random ephemeral port.
 .next
 .cindex "log" "process ids in"
 .cindex "pid (process id)" "in log lines"