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+<!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=utf-8">
+<link rel='stylesheet' type='text/css' href='postfix-doc.css'>
+<title> Postfix manual - trivial-rewrite(8) </title>
+</head> <body> <pre>
+TRIVIAL-REWRITE(8) TRIVIAL-REWRITE(8)
+
+<b>NAME</b>
+ trivial-rewrite - Postfix address rewriting and resolving daemon
+
+<b>SYNOPSIS</b>
+ <b>trivial-rewrite</b> [generic Postfix daemon options]
+
+<b>DESCRIPTION</b>
+ The <a href="trivial-rewrite.8.html"><b>trivial-rewrite</b>(8)</a> daemon processes three types of client service
+ requests:
+
+ <b>rewrite</b> <i>context address</i>
+ Rewrite an address to standard form, according to the address
+ rewriting context:
+
+ <b>local</b> Append the domain names specified with <b>$<a href="postconf.5.html#myorigin">myorigin</a></b> or
+ <b>$<a href="postconf.5.html#mydomain">mydomain</a></b> to incomplete addresses; do <b><a href="postconf.5.html#swap_bangpath">swap_bangpath</a></b> and
+ <b><a href="postconf.5.html#allow_percent_hack">allow_percent_hack</a></b> processing as described below, and
+ strip source routed addresses (<i>@site,@site:user@domain</i>)
+ to <i>user@domain</i> form.
+
+ <b>remote</b> Append the domain name specified with <b>$<a href="postconf.5.html#remote_header_rewrite_domain">remote_header_re</a>-</b>
+ <b><a href="postconf.5.html#remote_header_rewrite_domain">write_domain</a></b> to incomplete addresses. Otherwise the
+ result is identical to that of the <b>local</b> address rewrit-
+ ing context. This prevents Postfix from appending the
+ local domain to spam from poorly written remote clients.
+
+ <b>resolve</b> <i>sender address</i>
+ Resolve the address to a (<i>transport</i>, <i>nexthop</i>, <i>recipient</i>, <i>flags</i>)
+ quadruple. The meaning of the results is as follows:
+
+ <i>transport</i>
+ The delivery agent to use. This is the first field of an
+ entry in the <a href="master.5.html"><b>master.cf</b></a> file.
+
+ <i>nexthop</i>
+ The host to send to and optional delivery method informa-
+ tion.
+
+ <i>recipient</i>
+ The envelope recipient address that is passed on to <i>nex-</i>
+ <i>thop</i>.
+
+ <i>flags</i> The address class, whether the address requires relaying,
+ whether the address has problems, and whether the request
+ failed.
+
+ <b>verify</b> <i>sender address</i>
+ Resolve the address for address verification purposes.
+
+<b>SERVER PROCESS MANAGEMENT</b>
+ The <a href="trivial-rewrite.8.html"><b>trivial-rewrite</b>(8)</a> servers run under control by the Postfix <a href="master.8.html">mas-</a>
+ <a href="master.8.html">ter(8)</a> server. Each server can handle multiple simultaneous connec-
+ tions. When all servers are busy while a client connects, the master
+ creates a new server process, provided that the trivial-rewrite server
+ process limit is not exceeded. Each trivial-rewrite server terminates
+ after serving at least <b>$<a href="postconf.5.html#max_use">max_use</a></b> clients of after <b>$<a href="postconf.5.html#max_idle">max_idle</a></b> seconds of
+ idle time.
+
+<b>STANDARDS</b>
+ None. The command does not interact with the outside world.
+
+<b>SECURITY</b>
+ The <a href="trivial-rewrite.8.html"><b>trivial-rewrite</b>(8)</a> daemon is not security sensitive. By default,
+ this daemon does not talk to remote or local users. It can run at a
+ fixed low privilege in a chrooted environment.
+
+<b>DIAGNOSTICS</b>
+ Problems and transactions are logged to <b>syslogd</b>(8) or <a href="postlogd.8.html"><b>postlogd</b>(8)</a>.
+
+<b>CONFIGURATION PARAMETERS</b>
+ On busy mail systems a long time may pass before a <a href="postconf.5.html"><b>main.cf</b></a> change
+ affecting <a href="trivial-rewrite.8.html"><b>trivial-rewrite</b>(8)</a> is picked up. Use the command "<b>postfix</b>
+ <b>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#resolve_dequoted_address">resolve_dequoted_address</a> (yes)</b>
+ Resolve a recipient address safely instead of correctly, by
+ looking inside quotes.
+
+ Available with Postfix version 2.1 and later:
+
+ <b><a href="postconf.5.html#resolve_null_domain">resolve_null_domain</a> (no)</b>
+ Resolve an address that ends in the "@" null domain as if the
+ local hostname were specified, instead of rejecting the address
+ as invalid.
+
+ Available with Postfix version 2.3 and later:
+
+ <b><a href="postconf.5.html#resolve_numeric_domain">resolve_numeric_domain</a> (no)</b>
+ Resolve "user@ipaddress" as "user@[ipaddress]", instead of
+ rejecting the address as invalid.
+
+ Available with Postfix version 2.5 and later:
+
+ <b><a href="postconf.5.html#allow_min_user">allow_min_user</a> (no)</b>
+ Allow a sender or recipient address to have `-' as the first
+ character.
+
+<b>ADDRESS REWRITING CONTROLS</b>
+ <b><a href="postconf.5.html#myorigin">myorigin</a> ($<a href="postconf.5.html#myhostname">myhostname</a>)</b>
+ The domain name that locally-posted mail appears to come from,
+ and that locally posted mail is delivered to.
+
+ <b><a href="postconf.5.html#allow_percent_hack">allow_percent_hack</a> (yes)</b>
+ Enable the rewriting of the form "user%domain" to "user@domain".
+
+ <b><a href="postconf.5.html#append_at_myorigin">append_at_myorigin</a> (yes)</b>
+ With locally submitted mail, append the string "@$<a href="postconf.5.html#myorigin">myorigin</a>" to
+ mail addresses without domain information.
+
+ <b><a href="postconf.5.html#append_dot_mydomain">append_dot_mydomain</a> (Postfix</b> &gt;<b>= 3.0: no, Postfix</b> &lt; <b>3.0: yes)</b>
+ With locally submitted mail, append the string ".$<a href="postconf.5.html#mydomain">mydomain</a>" to
+ addresses that have no ".domain" information.
+
+ <b><a href="postconf.5.html#recipient_delimiter">recipient_delimiter</a> (empty)</b>
+ The set of characters that can separate an email address local-
+ part, user name, or a .forward file name from its extension.
+
+ <b><a href="postconf.5.html#swap_bangpath">swap_bangpath</a> (yes)</b>
+ Enable the rewriting of "site!user" into "user@site".
+
+ Available in Postfix 2.2 and later:
+
+ <b><a href="postconf.5.html#remote_header_rewrite_domain">remote_header_rewrite_domain</a> (empty)</b>
+ Don't rewrite message headers from remote clients at all when
+ this parameter is empty; otherwise, rewrite message headers and
+ append the specified domain name to incomplete addresses.
+
+<b>ROUTING CONTROLS</b>
+ The following is applicable to Postfix version 2.0 and later. Earlier
+ versions do not have support for: <a href="postconf.5.html#virtual_transport">virtual_transport</a>, <a href="postconf.5.html#relay_transport">relay_transport</a>,
+ <a href="postconf.5.html#virtual_alias_domains">virtual_alias_domains</a>, <a href="postconf.5.html#virtual_mailbox_domains">virtual_mailbox_domains</a> or <a href="postconf.5.html#proxy_interfaces">proxy_interfaces</a>.
+
+ <b><a href="postconf.5.html#local_transport">local_transport</a> (<a href="local.8.html">local</a>:$<a href="postconf.5.html#myhostname">myhostname</a>)</b>
+ The default mail delivery transport and next-hop destination for
+ final delivery to domains listed with <a href="postconf.5.html#mydestination">mydestination</a>, and for
+ [ipaddress] destinations that match $<a href="postconf.5.html#inet_interfaces">inet_interfaces</a> or
+ $<a href="postconf.5.html#proxy_interfaces">proxy_interfaces</a>.
+
+ <b><a href="postconf.5.html#virtual_transport">virtual_transport</a> (virtual)</b>
+ The default mail delivery transport and next-hop destination for
+ final delivery to domains listed with $<a href="postconf.5.html#virtual_mailbox_domains">virtual_mailbox_domains</a>.
+
+ <b><a href="postconf.5.html#relay_transport">relay_transport</a> (relay)</b>
+ The default mail delivery transport and next-hop destination for
+ remote delivery to domains listed with $<a href="postconf.5.html#relay_domains">relay_domains</a>.
+
+ <b><a href="postconf.5.html#default_transport">default_transport</a> (smtp)</b>
+ The default mail delivery transport and next-hop destination for
+ destinations that do not match $<a href="postconf.5.html#mydestination">mydestination</a>, $<a href="postconf.5.html#inet_interfaces">inet_interfaces</a>,
+ $<a href="postconf.5.html#proxy_interfaces">proxy_interfaces</a>, $<a href="postconf.5.html#virtual_alias_domains">virtual_alias_domains</a>, $<a href="postconf.5.html#virtual_mailbox_domains">virtual_mail</a>-
+ <a href="postconf.5.html#virtual_mailbox_domains">box_domains</a>, or $<a href="postconf.5.html#relay_domains">relay_domains</a>.
+
+ <b><a href="postconf.5.html#parent_domain_matches_subdomains">parent_domain_matches_subdomains</a> (see 'postconf -d' output)</b>
+ A list of Postfix features where the pattern "example.com" also
+ matches subdomains of example.com, instead of requiring an
+ explicit ".example.com" pattern.
+
+ <b><a href="postconf.5.html#relayhost">relayhost</a> (empty)</b>
+ The next-hop destination(s) for non-local mail; overrides
+ non-<a href="ADDRESS_CLASS_README.html#local_domain_class">local domains</a> in recipient addresses.
+
+ <b><a href="postconf.5.html#transport_maps">transport_maps</a> (empty)</b>
+ Optional lookup tables with mappings from recipient address to
+ (message delivery transport, next-hop destination).
+
+ Available in Postfix version 2.3 and later:
+
+ <b><a href="postconf.5.html#sender_dependent_relayhost_maps">sender_dependent_relayhost_maps</a> (empty)</b>
+ A sender-dependent override for the global <a href="postconf.5.html#relayhost">relayhost</a> parameter
+ setting.
+
+ Available in Postfix version 2.5 and later:
+
+ <b><a href="postconf.5.html#empty_address_relayhost_maps_lookup_key">empty_address_relayhost_maps_lookup_key</a> (</b>&lt;&gt;<b>)</b>
+ The <a href="postconf.5.html#sender_dependent_relayhost_maps">sender_dependent_relayhost_maps</a> search string that will be
+ used instead of the null sender address.
+
+ Available in Postfix version 2.7 and later:
+
+ <b><a href="postconf.5.html#empty_address_default_transport_maps_lookup_key">empty_address_default_transport_maps_lookup_key</a> (</b>&lt;&gt;<b>)</b>
+ The <a href="postconf.5.html#sender_dependent_default_transport_maps">sender_dependent_default_transport_maps</a> search string that
+ will be used instead of the null sender address.
+
+ <b><a href="postconf.5.html#sender_dependent_default_transport_maps">sender_dependent_default_transport_maps</a> (empty)</b>
+ A sender-dependent override for the global <a href="postconf.5.html#default_transport">default_transport</a>
+ parameter setting.
+
+<b>ADDRESS VERIFICATION CONTROLS</b>
+ Postfix version 2.1 introduces sender and recipient address verifica-
+ tion. This feature is implemented by sending probe email messages that
+ are not actually delivered. By default, address verification probes
+ use the same route as regular mail. To override specific aspects of
+ message routing for address verification probes, specify one or more of
+ the following:
+
+ <b><a href="postconf.5.html#address_verify_local_transport">address_verify_local_transport</a> ($<a href="postconf.5.html#local_transport">local_transport</a>)</b>
+ Overrides the <a href="postconf.5.html#local_transport">local_transport</a> parameter setting for address ver-
+ ification probes.
+
+ <b><a href="postconf.5.html#address_verify_virtual_transport">address_verify_virtual_transport</a> ($<a href="postconf.5.html#virtual_transport">virtual_transport</a>)</b>
+ Overrides the <a href="postconf.5.html#virtual_transport">virtual_transport</a> parameter setting for address
+ verification probes.
+
+ <b><a href="postconf.5.html#address_verify_relay_transport">address_verify_relay_transport</a> ($<a href="postconf.5.html#relay_transport">relay_transport</a>)</b>
+ Overrides the <a href="postconf.5.html#relay_transport">relay_transport</a> parameter setting for address ver-
+ ification probes.
+
+ <b><a href="postconf.5.html#address_verify_default_transport">address_verify_default_transport</a> ($<a href="postconf.5.html#default_transport">default_transport</a>)</b>
+ Overrides the <a href="postconf.5.html#default_transport">default_transport</a> parameter setting for address
+ verification probes.
+
+ <b><a href="postconf.5.html#address_verify_relayhost">address_verify_relayhost</a> ($<a href="postconf.5.html#relayhost">relayhost</a>)</b>
+ Overrides the <a href="postconf.5.html#relayhost">relayhost</a> parameter setting for address verifica-
+ tion probes.
+
+ <b><a href="postconf.5.html#address_verify_transport_maps">address_verify_transport_maps</a> ($<a href="postconf.5.html#transport_maps">transport_maps</a>)</b>
+ Overrides the <a href="postconf.5.html#transport_maps">transport_maps</a> parameter setting for address veri-
+ fication probes.
+
+ Available in Postfix version 2.3 and later:
+
+ <b><a href="postconf.5.html#address_verify_sender_dependent_relayhost_maps">address_verify_sender_dependent_relayhost_maps</a> ($<a href="postconf.5.html#sender_dependent_relayhost_maps">sender_depen</a>-</b>
+ <b><a href="postconf.5.html#sender_dependent_relayhost_maps">dent_relayhost_maps</a>)</b>
+ Overrides the <a href="postconf.5.html#sender_dependent_relayhost_maps">sender_dependent_relayhost_maps</a> parameter setting
+ for address verification probes.
+
+ Available in Postfix version 2.7 and later:
+
+ <b><a href="postconf.5.html#address_verify_sender_dependent_default_transport_maps">address_verify_sender_dependent_default_transport_maps</a> ($<a href="postconf.5.html#sender_dependent_default_transport_maps">sender_depen</a>-</b>
+ <b><a href="postconf.5.html#sender_dependent_default_transport_maps">dent_default_transport_maps</a>)</b>
+ Overrides the <a href="postconf.5.html#sender_dependent_default_transport_maps">sender_dependent_default_transport_maps</a> parameter
+ setting for address verification probes.
+
+<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#empty_address_recipient">empty_address_recipient</a> (MAILER-DAEMON)</b>
+ The recipient of mail addressed to the null address.
+
+ <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#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#relocated_maps">relocated_maps</a> (empty)</b>
+ Optional lookup tables with new contact information for users or
+ domains that no longer exist.
+
+ <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#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#show_user_unknown_table_name">show_user_unknown_table_name</a> (yes)</b>
+ Display the name of the recipient table in the "User unknown"
+ responses.
+
+ <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 2.0 and later:
+
+ <b><a href="postconf.5.html#helpful_warnings">helpful_warnings</a> (yes)</b>
+ Log warnings about problematic configuration settings, and pro-
+ vide helpful suggestions.
+
+ Available in Postfix 3.3 and later:
+
+ <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>SEE ALSO</b>
+ <a href="postconf.5.html">postconf(5)</a>, configuration parameters
+ <a href="transport.5.html">transport(5)</a>, transport table format
+ <a href="relocated.5.html">relocated(5)</a>, format of the "user has moved" table
+ <a href="master.8.html">master(8)</a>, process manager
+ <a href="postlogd.8.html">postlogd(8)</a>, Postfix logging
+ syslogd(8), system logging
+
+<b>README FILES</b>
+ <a href="ADDRESS_CLASS_README.html">ADDRESS_CLASS_README</a>, Postfix address classes howto
+ <a href="ADDRESS_VERIFICATION_README.html">ADDRESS_VERIFICATION_README</a>, Postfix address verification
+
+<b>LICENSE</b>
+ The Secure Mailer license must be distributed with this software.
+
+<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
+
+ TRIVIAL-REWRITE(8)
+</pre> </body> </html>