CHUNKING: pipeline data right after the BDAT command

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

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index e6a46c58a99625e24406ce37fdd20ee5fc2cbb0e..e5d77632347608a44ffa7daea2dc030aff23a7f3 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -464,7 +464,7 @@ which contains what used to be a separate FAQ, as well as various other
 examples, tips, and know-how that have been contributed by Exim users.
 
 .cindex Bugzilla
 examples, tips, and know-how that have been contributed by Exim users.
 
 .cindex Bugzilla

-An Exim Bugzilla exists at &url(http://bugs.exim.org). You can use
+An Exim Bugzilla exists at &url(https://bugs.exim.org). You can use

 this to report bugs, and also to add items to the wish list. Please search
 first to check that you are not duplicating a previous entry.
 
 this to report bugs, and also to add items to the wish list. Please search
 first to check that you are not duplicating a previous entry.
 


@@ -493,18 +493,11 @@ via this web page:
 Please ask Debian-specific questions on this list and not on the general Exim
 lists.
 
 Please ask Debian-specific questions on this list and not on the general Exim
 lists.
 

-.section "Exim training" "SECID4"
-.cindex "training courses"
-Training courses in Cambridge (UK) used to be run annually by the author of
-Exim, before he retired. At the time of writing, there are no plans to run
-further Exim courses in Cambridge. However, if that changes, relevant
-information will be posted at &url(http://www-tus.csx.cam.ac.uk/courses/exim/).
-

 .section "Bug reports" "SECID5"
 .cindex "bug reports"
 .cindex "reporting bugs"
 Reports of obvious bugs can be emailed to &'bugs@exim.org'& or reported
 .section "Bug reports" "SECID5"
 .cindex "bug reports"
 .cindex "reporting bugs"
 Reports of obvious bugs can be emailed to &'bugs@exim.org'& or reported

-via the Bugzilla (&url(http://bugs.exim.org)). However, if you are unsure
+via the Bugzilla (&url(https://bugs.exim.org)). However, if you are unsure

 whether some behaviour is a bug or not, the best thing to do is to post a
 message to the &'exim-dev'& mailing list and have it discussed.
 
 whether some behaviour is a bug or not, the best thing to do is to post a
 message to the &'exim-dev'& mailing list and have it discussed.
 


@@ -515,10 +508,6 @@ message to the &'exim-dev'& mailing list and have it discussed.
 .cindex "distribution" "ftp site"
 The master ftp site for the Exim distribution is
 .display
 .cindex "distribution" "ftp site"
 The master ftp site for the Exim distribution is
 .display

-&*ftp://ftp.csx.cam.ac.uk/pub/software/email/exim*&
-.endd
-This is mirrored by
-.display

 &*ftp://ftp.exim.org/pub/exim*&
 .endd
 The file references that follow are relative to the &_exim_& directories at
 &*ftp://ftp.exim.org/pub/exim*&
 .endd
 The file references that follow are relative to the &_exim_& directories at


@@ -3869,12 +3858,12 @@ by Exim in conjunction with the &%-MC%& option, and passes on the fact that the
 host to which Exim is connected supports TLS encryption.
 
 .new
 host to which Exim is connected supports TLS encryption.
 
 .new

-.vitem &%-MCt%&&~<&'IP&~address'&>&~<&'port'&>
+.vitem &%-MCt%&&~<&'IP&~address'&>&~<&'port'&>&~<&'cipher'&>

 .oindex "&%-MCt%&"
 This option is not intended for use by external callers. It is used internally
 by Exim in conjunction with the &%-MC%& option, and passes on the fact that the
 connection is being proxied by a parent process for handling TLS encryption.
 .oindex "&%-MCt%&"
 This option is not intended for use by external callers. It is used internally
 by Exim in conjunction with the &%-MC%& option, and passes on the fact that the
 connection is being proxied by a parent process for handling TLS encryption.

-The pair of arguments give the local address and port being proxied.
+The arguments give the local address and port being proxied, and the TLS cipher.

 .wen
 
 .vitem &%-Mc%&&~<&'message&~id'&>&~<&'message&~id'&>&~...
 .wen
 
 .vitem &%-Mc%&&~<&'message&~id'&>&~<&'message&~id'&>&~...


@@ -11042,9 +11031,14 @@ colon-separated components are permitted, each containing from one to four
 hexadecimal digits. There may be fewer than eight components if an empty
 component (adjacent colons) is present. Only one empty component is permitted.
 
 hexadecimal digits. There may be fewer than eight components if an empty
 component (adjacent colons) is present. Only one empty component is permitted.
 

-&*Note*&: The checks are just on the form of the address; actual numerical
-values are not considered. Thus, for example, 999.999.999.999 passes the IPv4
-check. The main use of these tests is to distinguish between IP addresses and
+.new
+&*Note*&: The checks used to be just on the form of the address; actual numerical
+values were not considered. Thus, for example, 999.999.999.999 passed the IPv4
+check.
+This is no longer the case.
+.wen
+
+The main use of these tests is to distinguish between IP addresses and

 host names, or between IPv4 and IPv6 addresses. For example, you could use
 .code
 ${if isip4{$sender_host_address}...
 host names, or between IPv4 and IPv6 addresses. For example, you could use
 .code
 ${if isip4{$sender_host_address}...


@@ -15685,7 +15679,7 @@ harm. This option overrides the &%pipe_as_creator%& option of the &(pipe)&
 transport driver.
 
 
 transport driver.
 
 

-.option openssl_options main "string list" "+no_sslv2 +single_dh_use"
+.option openssl_options main "string list" "+no_sslv2 +single_dh_use +no_ticket"

 .cindex "OpenSSL "compatibility options"
 This option allows an administrator to adjust the SSL options applied
 by OpenSSL to connections.  It is given as a space-separated list of items,
 .cindex "OpenSSL "compatibility options"
 This option allows an administrator to adjust the SSL options applied
 by OpenSSL to connections.  It is given as a space-separated list of items,


@@ -27213,10 +27207,12 @@ tls_require_ciphers = ${if =={$received_port}{25}\
 .cindex "TLS" "configuring an Exim server"
 When Exim has been built with TLS support, it advertises the availability of
 the STARTTLS command to client hosts that match &%tls_advertise_hosts%&,
 .cindex "TLS" "configuring an Exim server"
 When Exim has been built with TLS support, it advertises the availability of
 the STARTTLS command to client hosts that match &%tls_advertise_hosts%&,

-but not to any others. The default value of this option is unset, which means
-that STARTTLS is not advertised at all. This default is chosen because you
-need to set some other options in order to make TLS available, and also it is
-sensible for systems that want to use TLS only as a client.
+but not to any others. The default value of this option is *, which means
+that STARTTLS is alway advertised.  Set it to blank to never advertise;
+this is reasonble for systems that want to use TLS only as a client.
+
+If STARTTLS is to be used you
+need to set some other options in order to make TLS available.

 
 If a client issues a STARTTLS command and there is some configuration
 problem in the server, the command is rejected with a 454 error. If the client
 
 If a client issues a STARTTLS command and there is some configuration
 problem in the server, the command is rejected with a 454 error. If the client


@@ -29006,12 +29002,14 @@ sender when the destination system is doing content-scan based rejection.
 .cindex "&ACL;" "enabling debug logging"
 .cindex "debugging" "enabling from an ACL"
 This control turns on debug logging, almost as though Exim had been invoked
 .cindex "&ACL;" "enabling debug logging"
 .cindex "debugging" "enabling from an ACL"
 This control turns on debug logging, almost as though Exim had been invoked

-with &`-d`&, with the output going to a new logfile, by default called
-&'debuglog'&.  The filename can be adjusted with the &'tag'& option, which
+with &`-d`&, with the output going to a new logfile in the usual logs directory,
+by default called &'debuglog'&.
+The filename can be adjusted with the &'tag'& option, which

 may access any variables already defined.  The logging may be adjusted with
 the &'opts'& option, which takes the same values as the &`-d`& command-line
 option.
 may access any variables already defined.  The logging may be adjusted with
 the &'opts'& option, which takes the same values as the &`-d`& command-line
 option.

-Logging may be stopped, and the file removed, with the &'kill'& option.
+Logging started this way may be stopped, and the file removed,
+with the &'kill'& option.

 Some examples (which depend on variables that don't exist in all
 contexts):
 .code
 Some examples (which depend on variables that don't exist in all
 contexts):
 .code


@@ -30901,6 +30899,23 @@ command when performing the callout, instead of an empty address. There is no
 need to use this option unless you know that the called hosts make use of the
 sender when checking recipients. If used indiscriminately, it reduces the
 usefulness of callout caching.
 need to use this option unless you know that the called hosts make use of the
 sender when checking recipients. If used indiscriminately, it reduces the
 usefulness of callout caching.

+
+.new
+.vitem &*hold*&
+This option applies to recipient callouts only. For example:
+.code
+require  verify = recipient/callout=use_sender,hold
+.endd
+It causes the connection to be helod open and used for any further recipients
+and for eventual delivery (should that be done quickly).
+Doing this saves on TCP and SMTP startup costs, and TLS costs also
+when that is used for the connections.
+The advantage is only gained if there are no callout cache hits
+(which could be enforced by the no_cache option),
+if the use_sender option is used,
+if neither the random nor the use_postmaster option is used,
+and if no other callouts intervene.
+.wen

 .endlist
 
 If you use any of the parameters that set a non-empty sender for the MAIL
 .endlist
 
 If you use any of the parameters that set a non-empty sender for the MAIL


@@ -31537,6 +31552,18 @@ av_scanner = f-protd:localhost 10200-10204
 .endd
 If you omit the argument, the default values show above are used.
 
 .endd
 If you omit the argument, the default values show above are used.
 

+.new
+.vitem &%f-prot6d%&
+.cindex "virus scanners" "f-prot6d"
+The f-prot6d scanner is accessed using the FPSCAND protocol over TCP.
+One argument is taken, being a space-separated hostname and port number.
+For example:
+.code
+av_scanner = f-prot6d:localhost 10200
+.endd
+If you omit the argument, the default values show above are used.
+.wen
+

 .vitem &%fsecure%&
 .cindex "virus scanners" "F-Secure"
 The F-Secure daemon scanner (&url(http://www.f-secure.com)) takes one
 .vitem &%fsecure%&
 .cindex "virus scanners" "F-Secure"
 The F-Secure daemon scanner (&url(http://www.f-secure.com)) takes one


@@ -35755,9 +35782,9 @@ down a single SMTP connection, an asterisk follows the IP address in the log
 lines for the second and subsequent messages.
 .new
 When two or more messages are delivered down a single TLS connection, the
 lines for the second and subsequent messages.
 .new
 When two or more messages are delivered down a single TLS connection, the

-TLS-related information logged for the first message delivered
-(which may not be the earliest line in the log)
+DNS and some TLS-related information logged for the first message delivered

 will not be present in the log lines for the second and subsequent messages.
 will not be present in the log lines for the second and subsequent messages.

+TLS cipher information is still available.

 .wen
 
 .cindex "delivery" "cutthrough; logging"
 .wen
 
 .cindex "delivery" "cutthrough; logging"


@@ -36619,8 +36646,7 @@ autodetection of some well known compression extensions.
 .cindex "&'exipick'&"
 John Jetmore's &'exipick'& utility is included in the Exim distribution. It
 lists messages from the queue according to a variety of criteria. For details
 .cindex "&'exipick'&"
 John Jetmore's &'exipick'& utility is included in the Exim distribution. It
 lists messages from the queue according to a variety of criteria. For details

-of &'exipick'&'s facilities, visit the web page at
-&url(http://www.exim.org/eximwiki/ToolExipickManPage) or run &'exipick'& with
+of &'exipick'&'s facilities, run &'exipick'& with

 the &%--help%& option.
 
 
 the &%--help%& option.
 
 


@@ -38883,7 +38909,7 @@ The current list of events is:
 &`msg:rcpt:host:defer    after    transport  `& per recipient per host
 &`msg:rcpt:defer         after    transport  `& per recipient
 &`msg:host:defer         after    transport  `& per attempt
 &`msg:rcpt:host:defer    after    transport  `& per recipient per host
 &`msg:rcpt:defer         after    transport  `& per recipient
 &`msg:host:defer         after    transport  `& per attempt

-&`msg:fail:delivery      after    main       `& per recipient
+&`msg:fail:delivery      after    transport  `& per recipient

 &`msg:fail:internal      after    main       `& per recipient
 &`tcp:connect            before   transport  `& per connection
 &`tcp:close              after    transport  `& per connection
 &`msg:fail:internal      after    main       `& per recipient
 &`tcp:connect            before   transport  `& per connection
 &`tcp:close              after    transport  `& per connection


@@ -38900,6 +38926,11 @@ The second column in the table above describes whether the event fires
 before or after the action is associates with.  Those which fire before
 can be used to affect that action (more on this below).
 
 before or after the action is associates with.  Those which fire before
 can be used to affect that action (more on this below).
 

+.new
+The third column in the table above says what section of the configumration
+should define the event action.
+.wen
+

 An additional variable, &$event_data$&, is filled with information varying
 with the event type:
 .display
 An additional variable, &$event_data$&, is filled with information varying
 with the event type:
 .display