X-Git-Url: https://git.exim.org/users/heiko/exim.git/blobdiff_plain/2ff143741c68ad7fb8544f3238016b3d9227f3c1..caa2a7c81d19907a6125438bc1e71b6a2f5e16d6:/doc/doc-docbook/spec.xfpt diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt index f09e0253b..4c79e87cf 100644 --- a/doc/doc-docbook/spec.xfpt +++ b/doc/doc-docbook/spec.xfpt @@ -3885,7 +3885,9 @@ id, and the remaining ones must be email addresses. However, if the message is active (in the middle of a delivery attempt), it is not altered. This option can be used only by an admin user. -.vitem "&%-MC%&&~<&'transport'&>&~<&'hostname'&>&~<&'sequence&~number'&>&&& +.vitem "&%-MC%&&~<&'transport'&>&~<&'hostname'&>&&& + &~<&'host&~IP'&>&&& + &~<&'sequence&~number'&>&&& &~<&'message&~id'&>" .oindex "&%-MC%&" .cindex "SMTP" "passed connection" @@ -10147,7 +10149,7 @@ newline at the very end. For the &%header%& and &%bheader%& expansion, for those headers that contain lists of addresses, a comma is also inserted at the junctions between headers. This does not happen for the &%rheader%& expansion. -.cindex "tainted data" +.cindex "tainted data" "message headers" When the headers are from an incoming message, the result of expanding any of these variables is tainted. @@ -13703,7 +13705,11 @@ filter file to set values that can be tested in users' filter files. For example, a system filter could set a value indicating how likely it is that a message is junk mail. -.vitem &$spam_$&&'xxx'& +.vitem &$spam_score$& &&& + &$spam_score_int$& &&& + &$spam_bar$& &&& + &$spam_report$& &&& + &$spam_action$& A number of variables whose names start with &$spam$& are available when Exim is compiled with the content-scanning extension. For details, see section &<>&. @@ -14093,6 +14099,10 @@ taint mode of the Perl interpreter. You are encouraged to set this option to a true value. To avoid breaking existing installations, it defaults to false. +.new +&*Note*&: This is entirely separate from Exim's tainted-data tracking. +.wen + .section "Calling Perl subroutines" "SECID86" When the configuration file includes a &%perl_startup%& option you can make use @@ -16973,7 +16983,7 @@ not count as protocol errors (see &%smtp_max_synprot_errors%&). .option pipelining_connect_advertise_hosts main "host list&!!" * .cindex "pipelining" "early connection" .cindex "pipelining" PIPE_CONNECT -.cindex "ESMTP extensions" X_PIPE_CONNECT +.cindex "ESMTP extensions" PIPE_CONNECT If Exim is built with the SUPPORT_PIPE_CONNECT build option this option controls which hosts the facility is advertised to and from which pipeline early-connection (before MAIL) SMTP @@ -16982,7 +16992,9 @@ When used, the pipelining saves on roundtrip times. See also the &%hosts_pipe_connect%& smtp transport option. -Currently the option name &"X_PIPE_CONNECT"& is used. +.new +The SMTP service extension keyword advertised is &"PIPE_CONNECT"&. +.wen .option prdr_enable main boolean false @@ -19720,6 +19732,10 @@ Values containing a list-separator should have them doubled. When a router runs, the strings are evaluated in order, to create variables which are added to the set associated with the address. +.new +This is done immediately after all the preconditions, before the +evaluation of the &%address_data%& option. +.wen The variable is set with the expansion of the value. The variables can be used by the router options (not including any preconditions) @@ -25524,9 +25540,12 @@ incoming messages, use an appropriate ACL. .cindex "authentication" "optional in client" This option provides a list of servers to which, provided they announce authentication support, Exim will attempt to authenticate as a client when it -connects. If authentication fails, Exim will try to transfer the message -unauthenticated. See also &%hosts_require_auth%&, and chapter -&<>& for details of authentication. +connects. If authentication fails +.new +and &%hosts_require_auth%& permits, +.wen +Exim will try to transfer the message unauthenticated. +See also chapter &<>& for details of authentication. .option hosts_try_chunking smtp "host list&!!" * .cindex CHUNKING "enabling, in client" @@ -27355,7 +27374,7 @@ conditions: .ilist The client host must match &%auth_advertise_hosts%& (default *). .next -It the &%server_advertise_condition%& option is set, its expansion must not +If the &%server_advertise_condition%& option is set, its expansion must not yield the empty string, &"0"&, &"no"&, or &"false"&. .endlist @@ -27463,7 +27482,7 @@ encode '\0user@domain.com\0pas$$word' .endd gives an incorrect answer because of the unescaped &"@"& and &"$"& characters. -If you have the &%mimencode%& command installed, another way to do produce +If you have the &%mimencode%& command installed, another way to produce base64-encoded strings is to run the command .code echo -e -n `\0user\0password' | mimencode @@ -28162,6 +28181,10 @@ supplied by the server. .option server_channelbinding gsasl boolean false Do not set this true and rely on the properties without consulting a cryptographic engineer. +. Unsure what that's about. It might be the "Triple Handshake" +. vulnerability; cf. https://www.mitls.org/pages/attacks/3SHAKE +. If so, we're ok, requiring Extended Master Secret if TLS +. Session Resumption was used. Some authentication mechanisms are able to use external context at both ends of the session to bind the authentication to that context, and fail the @@ -38293,8 +38316,11 @@ parentheses afterwards. When more than one address is included in a single delivery (for example, two SMTP RCPT commands in one transaction) the second and subsequent addresses are flagged with &`->`& instead of &`=>`&. When two or more messages are delivered -down a single SMTP connection, an asterisk follows the IP address in the log -lines for the second and subsequent messages. +down a single SMTP connection, an asterisk follows the +.new +remote IP address (and port if enabled) +.wen +in the log lines for the second and subsequent messages. When two or more messages are delivered down a single TLS connection, the 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. @@ -38661,6 +38687,7 @@ routing email addresses, but it does apply to &"byname"& lookups. client's ident port times out. .next .cindex "log" "incoming interface" +.cindex "log" "outgoing interface" .cindex "log" "local interface" .cindex "log" "local address and port" .cindex "TCP/IP" "logging local address and port" @@ -38669,7 +38696,10 @@ client's ident port times out. 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"&, to -rejection lines, and (despite the name) to outgoing &"=>"& and &"->"& lines. +rejection lines, and (despite the name) to outgoing +.new +&"=>"&, &"->"&, &"=="& and &"**"& lines. +.wen The latter can be disabled by turning off the &%outgoing_interface%& option. .next .cindex log "incoming proxy address"