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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:46:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:46:30 +0000 |
| commit | b5896ba9f6047e7031e2bdee0622d543e11a6734 (patch) | |
| tree | fd7b460593a2fee1be579bec5697e6d887ea3421 /html/local.8.html | |
| parent | Initial commit. (diff) | |
| download | postfix-upstream.tar.xz postfix-upstream.zip | |
Adding upstream version 3.4.23.upstream/3.4.23upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'html/local.8.html')
| -rw-r--r-- | html/local.8.html | 616 |
1 files changed, 616 insertions, 0 deletions
diff --git a/html/local.8.html b/html/local.8.html new file mode 100644 index 0000000..0a2bc44 --- /dev/null +++ b/html/local.8.html @@ -0,0 +1,616 @@ +<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN" + "http://www.w3.org/TR/html4/loose.dtd"> +<html> <head> +<meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> +<title> Postfix manual - local(8) </title> +</head> <body> <pre> +LOCAL(8) LOCAL(8) + +<b>NAME</b> + local - Postfix local mail delivery + +<b>SYNOPSIS</b> + <b>local</b> [generic Postfix daemon options] + +<b>DESCRIPTION</b> + The <a href="local.8.html"><b>local</b>(8)</a> daemon processes delivery requests from the Postfix queue + manager to deliver mail to local recipients. Each delivery request + specifies a queue file, a sender address, a domain or host to deliver + to, and one or more recipients. This program expects to be run from + the <a href="master.8.html"><b>master</b>(8)</a> process manager. + + The <a href="local.8.html"><b>local</b>(8)</a> daemon updates queue files and marks recipients as fin- + ished, or it informs the queue manager that delivery should be tried + again at a later time. Delivery status reports are sent to the + <a href="bounce.8.html"><b>bounce</b>(8)</a>, <a href="defer.8.html"><b>defer</b>(8)</a> or <a href="trace.8.html"><b>trace</b>(8)</a> daemon as appropriate. + +<b>CASE FOLDING</b> + All delivery decisions are made using the bare recipient name (i.e. the + address localpart), folded to lower case. See also under ADDRESS + EXTENSION below for a few exceptions. + +<b>SYSTEM-WIDE AND USER-LEVEL ALIASING</b> + The system administrator can set up one or more system-wide <b>send-</b> + <b>mail</b>-style alias databases. Users can have <b>sendmail</b>-style ~/.<b>forward</b> + files. Mail for <i>name</i> is delivered to the alias <i>name</i>, to destinations + in ~<i>name</i>/.<b>forward</b>, to the mailbox owned by the user <i>name</i>, or it is sent + back as undeliverable. + + The system administrator can specify a comma/space separated list of + ~/.<b>forward</b> like files through the <b><a href="postconf.5.html#forward_path">forward_path</a></b> configuration parameter. + Upon delivery, the local delivery agent tries each pathname in the list + until a file is found. + + Delivery via ~/.<b>forward</b> files is done with the privileges of the recip- + ient. Thus, ~/.<b>forward</b> like files must be readable by the recipient, + and their parent directory needs to have "execute" permission for the + recipient. + + The <b><a href="postconf.5.html#forward_path">forward_path</a></b> parameter is subject to interpolation of <b>$user</b> (recip- + ient username), <b>$home</b> (recipient home directory), <b>$shell</b> (recipient + shell), <b>$recipient</b> (complete recipient address), <b>$extension</b> (recipient + address extension), <b>$domain</b> (recipient domain), <b>$local</b> (entire recipi- + ent address localpart) and <b>$<a href="postconf.5.html#recipient_delimiter">recipient_delimiter</a>.</b> The forms + <i>${name?value}</i> and <i>${name:value}</i> expand conditionally to <i>value</i> when + <i>$name</i> is (is not) defined. Characters that may have special meaning to + the shell or file system are replaced by underscores. The list of + acceptable characters is specified with the <b><a href="postconf.5.html#forward_expansion_filter">forward_expansion_filter</a></b> + configuration parameter. + + An alias or ~/.<b>forward</b> file may list any combination of external com- + mands, destination file names, <b>:include:</b> directives, or mail addresses. + See <a href="aliases.5.html"><b>aliases</b>(5)</a> for a precise description. Each line in a user's .<b>for-</b> + <b>ward</b> file has the same syntax as the right-hand part of an alias. + + When an address is found in its own alias expansion, delivery is made + to the user instead. When a user is listed in the user's own ~/.<b>forward</b> + file, delivery is made to the user's mailbox instead. An empty ~/.<b>for-</b> + <b>ward</b> file means do not forward mail. + + In order to prevent the mail system from using up unreasonable amounts + of memory, input records read from <b>:include:</b> or from ~/.<b>forward</b> files + are broken up into chunks of length <b><a href="postconf.5.html#line_length_limit">line_length_limit</a></b>. + + While expanding aliases, ~/.<b>forward</b> files, and so on, the program + attempts to avoid duplicate deliveries. The <b><a href="postconf.5.html#duplicate_filter_limit">duplicate_filter_limit</a></b> con- + figuration parameter limits the number of remembered recipients. + +<b>MAIL FORWARDING</b> + For the sake of reliability, forwarded mail is re-submitted as a new + message, so that each recipient has a separate on-file delivery status + record. + + In order to stop mail forwarding loops early, the software adds an + optional <b>Delivered-To:</b> header with the final envelope recipient + address. If mail arrives for a recipient that is already listed in a + <b>Delivered-To:</b> header, the message is bounced. + +<b>MAILBOX DELIVERY</b> + The default per-user mailbox is a file in the UNIX mail spool directory + (<b>/var/mail/</b><i>user</i> or <b>/var/spool/mail/</b><i>user</i>); the location can be specified + with the <b><a href="postconf.5.html#mail_spool_directory">mail_spool_directory</a></b> configuration parameter. Specify a name + ending in <b>/</b> for <b>qmail</b>-compatible <b>maildir</b> delivery. + + Alternatively, the per-user mailbox can be a file in the user's home + directory with a name specified via the <b><a href="postconf.5.html#home_mailbox">home_mailbox</a></b> configuration + parameter. Specify a relative path name. Specify a name ending in <b>/</b> for + <b>qmail</b>-compatible <b>maildir</b> delivery. + + Mailbox delivery can be delegated to an external command specified with + the <b><a href="postconf.5.html#mailbox_command_maps">mailbox_command_maps</a></b> and <b><a href="postconf.5.html#mailbox_command">mailbox_command</a></b> configuration parameters. + The command executes with the privileges of the recipient user (excep- + tions: secondary groups are not enabled; in case of delivery as root, + the command executes with the privileges of <b><a href="postconf.5.html#default_privs">default_privs</a></b>). + + Mailbox delivery can be delegated to alternative message transports + specified in the <a href="master.5.html"><b>master.cf</b></a> file. The <b><a href="postconf.5.html#mailbox_transport_maps">mailbox_transport_maps</a></b> and <b><a href="postconf.5.html#mailbox_transport">mail</a>-</b> + <b><a href="postconf.5.html#mailbox_transport">box_transport</a></b> configuration parameters specify an optional message + transport that is to be used for all local recipients, regardless of + whether they are found in the UNIX passwd database. The <b><a href="postconf.5.html#fallback_transport_maps">fall</a>-</b> + <b><a href="postconf.5.html#fallback_transport_maps">back_transport_maps</a></b> and <b><a href="postconf.5.html#fallback_transport">fallback_transport</a></b> parameters specify an + optional message transport for recipients that are not found in the + <a href="aliases.5.html">aliases(5)</a> or UNIX passwd database. + + In the case of UNIX-style mailbox delivery, the <a href="local.8.html"><b>local</b>(8)</a> daemon + prepends a "<b>From</b> <i>sender time</i><b>_</b><i>stamp</i>" envelope header to each message, + prepends an <b>X-Original-To:</b> header with the recipient address as given + to Postfix, prepends an optional <b>Delivered-To:</b> header with the final + envelope recipient address, prepends a <b>Return-Path:</b> header with the + envelope sender address, prepends a > character to lines beginning with + "<b>From</b> ", and appends an empty line. The mailbox is locked for exclu- + sive access while delivery is in progress. In case of problems, an + attempt is made to truncate the mailbox to its original length. + + In the case of <b>maildir</b> delivery, the local daemon prepends an optional + <b>Delivered-To:</b> header with the final envelope recipient address, + prepends an <b>X-Original-To:</b> header with the recipient address as given + to Postfix, and prepends a <b>Return-Path:</b> header with the envelope sender + address. + +<b>EXTERNAL COMMAND DELIVERY</b> + The <b><a href="postconf.5.html#allow_mail_to_commands">allow_mail_to_commands</a></b> configuration parameter restricts delivery + to external commands. The default setting (<b>alias, forward</b>) forbids com- + mand destinations in <b>:include:</b> files. + + Optionally, the process working directory is changed to the path speci- + fied with <b><a href="postconf.5.html#command_execution_directory">command_execution_directory</a></b> (Postfix 2.2 and later). Failure + to change directory causes mail to be deferred. + + The <b><a href="postconf.5.html#command_execution_directory">command_execution_directory</a></b> parameter value is subject to interpo- + lation of <b>$user</b> (recipient username), <b>$home</b> (recipient home directory), + <b>$shell</b> (recipient shell), <b>$recipient</b> (complete recipient address), + <b>$extension</b> (recipient address extension), <b>$domain</b> (recipient domain), + <b>$local</b> (entire recipient address localpart) and <b>$<a href="postconf.5.html#recipient_delimiter">recipient_delimiter</a>.</b> + The forms <i>${name?value}</i> and <i>${name:value}</i> expand conditionally to <i>value</i> + when <i>$name</i> is (is not) defined. Characters that may have special mean- + ing to the shell or file system are replaced by underscores. The list + of acceptable characters is specified with the <b><a href="postconf.5.html#execution_directory_expansion_filter">execution_direc</a>-</b> + <b><a href="postconf.5.html#execution_directory_expansion_filter">tory_expansion_filter</a></b> configuration parameter. + + The command is executed directly where possible. Assistance by the + shell (<b>/bin/sh</b> on UNIX systems) is used only when the command contains + shell magic characters, or when the command invokes a shell built-in + command. + + A limited amount of command output (standard output and standard error) + is captured for inclusion with non-delivery status reports. A command + is forcibly terminated if it does not complete within <b>com-</b> + <b>mand_time_limit</b> seconds. Command exit status codes are expected to + follow the conventions defined in <<b>sysexits.h</b>>. Exit status 0 means + normal successful completion. + + Postfix version 2.3 and later support <a href="http://tools.ietf.org/html/rfc3463">RFC 3463</a>-style enhanced status + codes. If a command terminates with a non-zero exit status, and the + command output begins with an enhanced status code, this status code + takes precedence over the non-zero exit status. + + A limited amount of message context is exported via environment vari- + ables. Characters that may have special meaning to the shell are + replaced by underscores. The list of acceptable characters is speci- + fied with the <b><a href="postconf.5.html#command_expansion_filter">command_expansion_filter</a></b> configuration parameter. + + <b>SHELL</b> The recipient user's login shell. + + <b>HOME</b> The recipient user's home directory. + + <b>USER</b> The bare recipient name. + + <b>EXTENSION</b> + The optional recipient address extension. + + <b>DOMAIN</b> The recipient address domain part. + + <b>LOGNAME</b> + The bare recipient name. + + <b>LOCAL</b> The entire recipient address localpart (text to the left of the + rightmost @ character). + + <b>ORIGINAL_RECIPIENT</b> + The entire recipient address, before any address rewriting or + aliasing (Postfix 2.5 and later). + + <b>RECIPIENT</b> + The entire recipient address. + + <b>SENDER</b> The entire sender address. + + Additional remote client information is made available via the follow- + ing environment variables: + + <b>CLIENT_ADDRESS</b> + Remote client network address. Available as of Postfix 2.2. + + <b>CLIENT_HELO</b> + Remote client EHLO command parameter. Available as of Postfix + 2.2. + + <b>CLIENT_HOSTNAME</b> + Remote client hostname. Available as of Postfix 2.2. + + <b>CLIENT_PROTOCOL</b> + Remote client protocol. Available as of Postfix 2.2. + + <b>SASL_METHOD</b> + SASL authentication method specified in the remote client AUTH + command. Available as of Postfix 2.2. + + <b>SASL_SENDER</b> + SASL sender address specified in the remote client MAIL FROM + command. Available as of Postfix 2.2. + + <b>SASL_USERNAME</b> + SASL username specified in the remote client AUTH command. + Available as of Postfix 2.2. + + The <b>PATH</b> environment variable is always reset to a system-dependent + default path, and environment variables whose names are blessed by the + <b><a href="postconf.5.html#export_environment">export_environment</a></b> configuration parameter are exported unchanged. + + The current working directory is the mail queue directory. + + The <a href="local.8.html"><b>local</b>(8)</a> daemon prepends a "<b>From</b> <i>sender time</i><b>_</b><i>stamp</i>" envelope header + to each message, prepends an <b>X-Original-To:</b> header with the recipient + address as given to Postfix, prepends an optional <b>Delivered-To:</b> header + with the final recipient envelope address, prepends a <b>Return-Path:</b> + header with the sender envelope address, and appends no empty line. + +<b>EXTERNAL FILE DELIVERY</b> + The delivery format depends on the destination filename syntax. The + default is to use UNIX-style mailbox format. Specify a name ending in + <b>/</b> for <b>qmail</b>-compatible <b>maildir</b> delivery. + + The <b><a href="postconf.5.html#allow_mail_to_files">allow_mail_to_files</a></b> configuration parameter restricts delivery to + external files. The default setting (<b>alias, forward</b>) forbids file des- + tinations in <b>:include:</b> files. + + In the case of UNIX-style mailbox delivery, the <a href="local.8.html"><b>local</b>(8)</a> daemon + prepends a "<b>From</b> <i>sender time</i><b>_</b><i>stamp</i>" envelope header to each message, + prepends an <b>X-Original-To:</b> header with the recipient address as given + to Postfix, prepends an optional <b>Delivered-To:</b> header with the final + recipient envelope address, prepends a > character to lines beginning + with "<b>From</b> ", and appends an empty line. The envelope sender address + is available in the <b>Return-Path:</b> header. When the destination is a + regular file, it is locked for exclusive access while delivery is in + progress. In case of problems, an attempt is made to truncate a regular + file to its original length. + + In the case of <b>maildir</b> delivery, the local daemon prepends an optional + <b>Delivered-To:</b> header with the final envelope recipient address, and + prepends an <b>X-Original-To:</b> header with the recipient address as given + to Postfix. The envelope sender address is available in the + <b>Return-Path:</b> header. + +<b>ADDRESS EXTENSION</b> + The optional <b><a href="postconf.5.html#recipient_delimiter">recipient_delimiter</a></b> configuration parameter specifies how + to separate address extensions from local recipient names. + + For example, with "<b><a href="postconf.5.html#recipient_delimiter">recipient_delimiter</a> = +</b>", mail for <i>name</i>+<i>foo</i> is + delivered to the alias <i>name</i>+<i>foo</i> or to the alias <i>name</i>, to the destina- + tions listed in ~<i>name</i>/.<b>forward</b>+<i>foo</i> or in ~<i>name</i>/.<b>forward</b>, to the mailbox + owned by the user <i>name</i>, or it is sent back as undeliverable. + +<b>DELIVERY RIGHTS</b> + Deliveries to external files and external commands are made with the + rights of the receiving user on whose behalf the delivery is made. In + the absence of a user context, the <a href="local.8.html"><b>local</b>(8)</a> daemon uses the owner + rights of the <b>:include:</b> file or alias database. When those files are + owned by the superuser, delivery is made with the rights specified with + the <b><a href="postconf.5.html#default_privs">default_privs</a></b> configuration parameter. + +<b>STANDARDS</b> + <a href="http://tools.ietf.org/html/rfc822">RFC 822</a> (ARPA Internet Text Messages) + <a href="http://tools.ietf.org/html/rfc3463">RFC 3463</a> (Enhanced status codes) + +<b>DIAGNOSTICS</b> + Problems and transactions are logged to <b>syslogd</b>(8) or <a href="postlogd.8.html"><b>postlogd</b>(8)</a>. + Corrupted message files are marked so that the queue manager can move + them to the <b>corrupt</b> queue afterwards. + + Depending on the setting of the <b><a href="postconf.5.html#notify_classes">notify_classes</a></b> parameter, the postmas- + ter is notified of bounces and of other trouble. + +<b>SECURITY</b> + The <a href="local.8.html"><b>local</b>(8)</a> delivery agent needs a dual personality 1) to access the + private Postfix queue and IPC mechanisms, 2) to impersonate the recipi- + ent and deliver to recipient-specified files or commands. It is there- + fore security sensitive. + + The <a href="local.8.html"><b>local</b>(8)</a> delivery agent disallows regular expression substitution + of $1 etc. in <b><a href="postconf.5.html#alias_maps">alias_maps</a></b>, because that would open a security hole. + + The <a href="local.8.html"><b>local</b>(8)</a> delivery agent will silently ignore requests to use the + <a href="proxymap.8.html"><b>proxymap</b>(8)</a> server within <b><a href="postconf.5.html#alias_maps">alias_maps</a></b>. Instead it will open the table + directly. Before Postfix version 2.2, the <a href="local.8.html"><b>local</b>(8)</a> delivery agent will + terminate with a fatal error. + +<b>BUGS</b> + For security reasons, the message delivery status of external commands + or of external files is never checkpointed to file. As a result, the + program may occasionally deliver more than once to a command or exter- + nal file. Better safe than sorry. + + Mutually-recursive aliases or ~/.<b>forward</b> files are not detected early. + The resulting mail forwarding loop is broken by the use of the <b>Deliv-</b> + <b>ered-To:</b> message header. + +<b>CONFIGURATION PARAMETERS</b> + Changes to <a href="postconf.5.html"><b>main.cf</b></a> are picked up automatically, as <a href="local.8.html"><b>local</b>(8)</a> processes + run for only a limited amount of time. Use the command "<b>postfix reload</b>" + to speed up a change. + + The text below provides only a parameter summary. See <a href="postconf.5.html"><b>postconf</b>(5)</a> for + more details including examples. + +<b>COMPATIBILITY CONTROLS</b> + <b><a href="postconf.5.html#biff">biff</a> (yes)</b> + Whether or not to use the local <a href="postconf.5.html#biff">biff</a> service. + + <b><a href="postconf.5.html#expand_owner_alias">expand_owner_alias</a> (no)</b> + When delivering to an alias "<i>aliasname</i>" that has an + "owner-<i>aliasname</i>" companion alias, set the envelope sender + address to the expansion of the "owner-<i>aliasname</i>" alias. + + <b><a href="postconf.5.html#owner_request_special">owner_request_special</a> (yes)</b> + Enable special treatment for owner-<i>listname</i> entries in the + <a href="aliases.5.html"><b>aliases</b>(5)</a> file, and don't split owner-<i>listname</i> and <i>list-</i> + <i>name</i>-request address localparts when the <a href="postconf.5.html#recipient_delimiter">recipient_delimiter</a> is + set to "-". + + <b><a href="postconf.5.html#sun_mailtool_compatibility">sun_mailtool_compatibility</a> (no)</b> + Obsolete SUN mailtool compatibility feature. + + Available in Postfix version 2.3 and later: + + <b><a href="postconf.5.html#frozen_delivered_to">frozen_delivered_to</a> (yes)</b> + Update the <a href="local.8.html"><b>local</b>(8)</a> delivery agent's idea of the Delivered-To: + address (see <a href="postconf.5.html#prepend_delivered_header">prepend_delivered_header</a>) only once, at the start + of a delivery attempt; do not update the Delivered-To: address + while expanding aliases or .forward files. + + Available in Postfix version 2.5.3 and later: + + <b><a href="postconf.5.html#strict_mailbox_ownership">strict_mailbox_ownership</a> (yes)</b> + Defer delivery when a mailbox file is not owned by its recipi- + ent. + + <b><a href="postconf.5.html#reset_owner_alias">reset_owner_alias</a> (no)</b> + Reset the <a href="local.8.html"><b>local</b>(8)</a> delivery agent's idea of the owner-alias + attribute, when delivering mail to a child alias that does not + have its own owner alias. + + Available in Postfix version 3.0 and later: + + <b><a href="postconf.5.html#local_delivery_status_filter">local_delivery_status_filter</a> ($<a href="postconf.5.html#default_delivery_status_filter">default_delivery_status_filter</a>)</b> + Optional filter for the <a href="local.8.html"><b>local</b>(8)</a> delivery agent to change the + status code or explanatory text of successful or unsuccessful + deliveries. + +<b>DELIVERY METHOD CONTROLS</b> + The precedence of <a href="local.8.html"><b>local</b>(8)</a> delivery methods from high to low is: + aliases, .forward files, <a href="postconf.5.html#mailbox_transport_maps">mailbox_transport_maps</a>, <a href="postconf.5.html#mailbox_transport">mailbox_transport</a>, + <a href="postconf.5.html#mailbox_command_maps">mailbox_command_maps</a>, <a href="postconf.5.html#mailbox_command">mailbox_command</a>, <a href="postconf.5.html#home_mailbox">home_mailbox</a>, <a href="postconf.5.html#mail_spool_directory">mail_spool_direc</a>- + <a href="postconf.5.html#mail_spool_directory">tory</a>, <a href="postconf.5.html#fallback_transport_maps">fallback_transport_maps</a>, <a href="postconf.5.html#fallback_transport">fallback_transport</a>, and <a href="postconf.5.html#luser_relay">luser_relay</a>. + + <b><a href="postconf.5.html#alias_maps">alias_maps</a> (see 'postconf -d' output)</b> + The alias databases that are used for <a href="local.8.html"><b>local</b>(8)</a> delivery. + + <b><a href="postconf.5.html#forward_path">forward_path</a> (see 'postconf -d' output)</b> + The <a href="local.8.html"><b>local</b>(8)</a> delivery agent search list for finding a .forward + file with user-specified delivery methods. + + <b><a href="postconf.5.html#mailbox_transport_maps">mailbox_transport_maps</a> (empty)</b> + Optional lookup tables with per-recipient message delivery + transports to use for <a href="local.8.html"><b>local</b>(8)</a> mailbox delivery, whether or not + the recipients are found in the UNIX passwd database. + + <b><a href="postconf.5.html#mailbox_transport">mailbox_transport</a> (empty)</b> + Optional message delivery transport that the <a href="local.8.html"><b>local</b>(8)</a> delivery + agent should use for mailbox delivery to all local recipients, + whether or not they are found in the UNIX passwd database. + + <b><a href="postconf.5.html#mailbox_command_maps">mailbox_command_maps</a> (empty)</b> + Optional lookup tables with per-recipient external commands to + use for <a href="local.8.html"><b>local</b>(8)</a> mailbox delivery. + + <b><a href="postconf.5.html#mailbox_command">mailbox_command</a> (empty)</b> + Optional external command that the <a href="local.8.html"><b>local</b>(8)</a> delivery agent + should use for mailbox delivery. + + <b><a href="postconf.5.html#home_mailbox">home_mailbox</a> (empty)</b> + Optional pathname of a mailbox file relative to a <a href="local.8.html"><b>local</b>(8)</a> + user's home directory. + + <b><a href="postconf.5.html#mail_spool_directory">mail_spool_directory</a> (see 'postconf -d' output)</b> + The directory where <a href="local.8.html"><b>local</b>(8)</a> UNIX-style mailboxes are kept. + + <b><a href="postconf.5.html#fallback_transport_maps">fallback_transport_maps</a> (empty)</b> + Optional lookup tables with per-recipient message delivery + transports for recipients that the <a href="local.8.html"><b>local</b>(8)</a> delivery agent could + not find in the <a href="aliases.5.html"><b>aliases</b>(5)</a> or UNIX password database. + + <b><a href="postconf.5.html#fallback_transport">fallback_transport</a> (empty)</b> + Optional message delivery transport that the <a href="local.8.html"><b>local</b>(8)</a> delivery + agent should use for names that are not found in the <a href="aliases.5.html"><b>aliases</b>(5)</a> + or UNIX password database. + + <b><a href="postconf.5.html#luser_relay">luser_relay</a> (empty)</b> + Optional catch-all destination for unknown <a href="local.8.html"><b>local</b>(8)</a> recipients. + + Available in Postfix version 2.2 and later: + + <b><a href="postconf.5.html#command_execution_directory">command_execution_directory</a> (empty)</b> + The <a href="local.8.html"><b>local</b>(8)</a> delivery agent working directory for delivery to + external command. + +<b>MAILBOX LOCKING CONTROLS</b> + <b><a href="postconf.5.html#deliver_lock_attempts">deliver_lock_attempts</a> (20)</b> + The maximal number of attempts to acquire an exclusive lock on a + mailbox file or <a href="bounce.8.html"><b>bounce</b>(8)</a> logfile. + + <b><a href="postconf.5.html#deliver_lock_delay">deliver_lock_delay</a> (1s)</b> + The time between attempts to acquire an exclusive lock on a + mailbox file or <a href="bounce.8.html"><b>bounce</b>(8)</a> logfile. + + <b><a href="postconf.5.html#stale_lock_time">stale_lock_time</a> (500s)</b> + The time after which a stale exclusive mailbox lockfile is + removed. + + <b><a href="postconf.5.html#mailbox_delivery_lock">mailbox_delivery_lock</a> (see 'postconf -d' output)</b> + How to lock a UNIX-style <a href="local.8.html"><b>local</b>(8)</a> mailbox before attempting + delivery. + +<b>RESOURCE AND RATE CONTROLS</b> + <b><a href="postconf.5.html#command_time_limit">command_time_limit</a> (1000s)</b> + Time limit for delivery to external commands. + + <b><a href="postconf.5.html#duplicate_filter_limit">duplicate_filter_limit</a> (1000)</b> + The maximal number of addresses remembered by the address dupli- + cate filter for <a href="aliases.5.html"><b>aliases</b>(5)</a> or <a href="virtual.5.html"><b>virtual</b>(5)</a> alias expansion, or for + <a href="showq.8.html"><b>showq</b>(8)</a> queue displays. + + <b><a href="postconf.5.html#mailbox_size_limit">mailbox_size_limit</a> (51200000)</b> + The maximal size of any <a href="local.8.html"><b>local</b>(8)</a> individual mailbox or maildir + file, or zero (no limit). + + Implemented in the <a href="qmgr.8.html">qmgr(8)</a> daemon: + + <b><a href="postconf.5.html#local_destination_concurrency_limit">local_destination_concurrency_limit</a> (2)</b> + The maximal number of parallel deliveries via the local mail + delivery transport to the same recipient (when "<a href="postconf.5.html#local_destination_recipient_limit">local_destina</a>- + <a href="postconf.5.html#local_destination_recipient_limit">tion_recipient_limit</a> = 1") or the maximal number of parallel + deliveries to the same local domain (when "<a href="postconf.5.html#local_destination_recipient_limit">local_destina</a>- + <a href="postconf.5.html#local_destination_recipient_limit">tion_recipient_limit</a> > 1"). + + <b><a href="postconf.5.html#local_destination_recipient_limit">local_destination_recipient_limit</a> (1)</b> + The maximal number of recipients per message delivery via the + local mail delivery transport. + +<b>SECURITY CONTROLS</b> + <b><a href="postconf.5.html#allow_mail_to_commands">allow_mail_to_commands</a> (alias, forward)</b> + Restrict <a href="local.8.html"><b>local</b>(8)</a> mail delivery to external commands. + + <b><a href="postconf.5.html#allow_mail_to_files">allow_mail_to_files</a> (alias, forward)</b> + Restrict <a href="local.8.html"><b>local</b>(8)</a> mail delivery to external files. + + <b><a href="postconf.5.html#command_expansion_filter">command_expansion_filter</a> (see 'postconf -d' output)</b> + Restrict the characters that the <a href="local.8.html"><b>local</b>(8)</a> delivery agent allows + in $name expansions of $<a href="postconf.5.html#mailbox_command">mailbox_command</a> and $<a href="postconf.5.html#command_execution_directory">command_execu</a>- + <a href="postconf.5.html#command_execution_directory">tion_directory</a>. + + <b><a href="postconf.5.html#default_privs">default_privs</a> (nobody)</b> + The default rights used by the <a href="local.8.html"><b>local</b>(8)</a> delivery agent for + delivery to external file or command. + + <b><a href="postconf.5.html#forward_expansion_filter">forward_expansion_filter</a> (see 'postconf -d' output)</b> + Restrict the characters that the <a href="local.8.html"><b>local</b>(8)</a> delivery agent allows + in $name expansions of $<a href="postconf.5.html#forward_path">forward_path</a>. + + Available in Postfix version 2.2 and later: + + <b><a href="postconf.5.html#execution_directory_expansion_filter">execution_directory_expansion_filter</a> (see 'postconf -d' output)</b> + Restrict the characters that the <a href="local.8.html"><b>local</b>(8)</a> delivery agent allows + in $name expansions of $<a href="postconf.5.html#command_execution_directory">command_execution_directory</a>. + + Available in Postfix version 2.5.3 and later: + + <b><a href="postconf.5.html#strict_mailbox_ownership">strict_mailbox_ownership</a> (yes)</b> + Defer delivery when a mailbox file is not owned by its recipi- + ent. + +<b>MISCELLANEOUS CONTROLS</b> + <b><a href="postconf.5.html#config_directory">config_directory</a> (see 'postconf -d' output)</b> + The default location of the Postfix <a href="postconf.5.html">main.cf</a> and <a href="master.5.html">master.cf</a> con- + figuration files. + + <b><a href="postconf.5.html#daemon_timeout">daemon_timeout</a> (18000s)</b> + How much time a Postfix daemon process may take to handle a + request before it is terminated by a built-in watchdog timer. + + <b><a href="postconf.5.html#delay_logging_resolution_limit">delay_logging_resolution_limit</a> (2)</b> + The maximal number of digits after the decimal point when log- + ging sub-second delay values. + + <b><a href="postconf.5.html#export_environment">export_environment</a> (see 'postconf -d' output)</b> + The list of environment variables that a Postfix process will + export to non-Postfix processes. + + <b><a href="postconf.5.html#ipc_timeout">ipc_timeout</a> (3600s)</b> + The time limit for sending or receiving information over an + internal communication channel. + + <b><a href="postconf.5.html#local_command_shell">local_command_shell</a> (empty)</b> + Optional shell program for <a href="local.8.html"><b>local</b>(8)</a> delivery to non-Postfix com- + mand. + + <b><a href="postconf.5.html#max_idle">max_idle</a> (100s)</b> + The maximum amount of time that an idle Postfix daemon process + waits for an incoming connection before terminating voluntarily. + + <b><a href="postconf.5.html#max_use">max_use</a> (100)</b> + The maximal number of incoming connections that a Postfix daemon + process will service before terminating voluntarily. + + <b><a href="postconf.5.html#prepend_delivered_header">prepend_delivered_header</a> (command, file, forward)</b> + The message delivery contexts where the Postfix <a href="local.8.html"><b>local</b>(8)</a> deliv- + ery agent prepends a Delivered-To: message header with the + address that the mail was delivered to. + + <b><a href="postconf.5.html#process_id">process_id</a> (read-only)</b> + The process ID of a Postfix command or daemon process. + + <b><a href="postconf.5.html#process_name">process_name</a> (read-only)</b> + The process name of a Postfix command or daemon process. + + <b><a href="postconf.5.html#propagate_unmatched_extensions">propagate_unmatched_extensions</a> (canonical, virtual)</b> + What address lookup tables copy an address extension from the + lookup key to the lookup result. + + <b><a href="postconf.5.html#queue_directory">queue_directory</a> (see 'postconf -d' output)</b> + The location of the Postfix top-level queue directory. + + <b><a href="postconf.5.html#recipient_delimiter">recipient_delimiter</a> (empty)</b> + The set of characters that can separate a user name from its + extension (example: user+foo), or a .forward file name from its + extension (example: .forward+foo). + + <b><a href="postconf.5.html#require_home_directory">require_home_directory</a> (no)</b> + Require that a <a href="local.8.html"><b>local</b>(8)</a> recipient's home directory exists before + mail delivery is attempted. + + <b><a href="postconf.5.html#syslog_facility">syslog_facility</a> (mail)</b> + The syslog facility of Postfix logging. + + <b><a href="postconf.5.html#syslog_name">syslog_name</a> (see 'postconf -d' output)</b> + A prefix that is prepended to the process name in syslog + records, so that, for example, "smtpd" becomes "prefix/smtpd". + + Available in Postfix version 3.3 and later: + + <b><a href="postconf.5.html#enable_original_recipient">enable_original_recipient</a> (yes)</b> + Enable support for the original recipient address after an + address is rewritten to a different address (for example with + aliasing or with canonical mapping). + + <b><a href="postconf.5.html#service_name">service_name</a> (read-only)</b> + The <a href="master.5.html">master.cf</a> service name of a Postfix daemon process. + +<b>FILES</b> + The following are examples; details differ between systems. + $HOME/.forward, per-user aliasing + /etc/aliases, system-wide alias database + /var/spool/mail, system mailboxes + +<b>SEE ALSO</b> + <a href="qmgr.8.html">qmgr(8)</a>, queue manager + <a href="bounce.8.html">bounce(8)</a>, delivery status reports + <a href="newaliases.1.html">newaliases(1)</a>, create/update alias database + <a href="postalias.1.html">postalias(1)</a>, create/update alias database + <a href="aliases.5.html">aliases(5)</a>, format of alias database + <a href="postconf.5.html">postconf(5)</a>, configuration parameters + <a href="master.5.html">master(5)</a>, generic daemon options + <a href="postlogd.8.html">postlogd(8)</a>, Postfix logging + syslogd(8), system logging + +<b>LICENSE</b> + The Secure Mailer license must be distributed with this software. + +<b>HISTORY</b> + The <b>Delivered-To:</b> message header appears in the <b>qmail</b> system by Daniel + Bernstein. + + The <i>maildir</i> structure appears in the <b>qmail</b> system by Daniel Bernstein. + +<b>AUTHOR(S)</b> + Wietse Venema + IBM T.J. Watson Research + P.O. Box 704 + Yorktown Heights, NY 10598, USA + + Wietse Venema + Google, Inc. + 111 8th Avenue + New York, NY 10011, USA + + LOCAL(8) +</pre> </body> </html> |