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    Command:

    trivial-rewrite

    
    
    

    SYNOPSIS

           trivial-rewrite [generic Postfix daemon options]
    
    
    

    DESCRIPTION

           The  trivial-rewrite(8)  daemon processes three types of client service
           requests:
    
           rewrite context address
                  Rewrite an address to standard form, according  to  the  address
                  rewriting context:
    
                  local  Append  the  domain  names  specified  with  $myorigin or
                         $mydomain to incomplete addresses; do  swap_bangpath  and
                         allow_percent_hack  processing  as  described  below, and
                         strip source routed  addresses  (@site,@site:user@domain)
                         to user@domain form.
    
                  remote Append     the     domain     name     specified     with
                         $remote_header_rewrite_domain  to  incomplete  addresses.
                         Otherwise  the  result  is identical to that of the local
                         address rewriting context.  This  prevents  Postfix  from
                         appending  the  local  domain to spam from poorly written
                         remote clients.
    
           resolve sender address
                  Resolve the address to a (transport, nexthop, recipient,  flags)
                  quadruple. The meaning of the results is as follows:
    
                  transport
                         The  delivery agent to use. This is the first field of an
                         entry in the master.cf file.
    
                  nexthop
                         The host to send to and optional delivery method informa-
                         tion.
    
                  recipient
                         The  envelope recipient address that is passed on to nex-
                         thop.
    
                  flags  The address class, whether the address requires relaying,
                         whether the address has problems, and whether the request
                         failed.
    
           verify sender address
                  Resolve the address for address verification purposes.
    
    
    

    SERVER PROCESS MANAGEMENT

           The trivial-rewrite(8) servers run under control by the Postfix  master
           server.   Each  server  can  handle  multiple simultaneous connections.
           When all servers are busy while a client connects, the master creates a
           new  server  process,  provided that the trivial-rewrite server process
    
    
    

    CONFIGURATION PARAMETERS

           On busy mail systems a long time  may  pass  before  a  main.cf  change
           affecting  trivial-rewrite(8)  is  picked  up. Use the command "postfix
           reload" to speed up a change.
    
           The text below provides only a parameter summary. See  postconf(5)  for
           more details including examples.
    
    
    

    COMPATIBILITY CONTROLS

           resolve_dequoted_address (yes)
                  Resolve  a  recipient  address  safely  instead of correctly, by
                  looking inside quotes.
    
           resolve_null_domain (no)
                  Resolve an address that ends in the "@" null domain  as  if  the
                  local  hostname were specified, instead of rejecting the address
                  as invalid.
    
           resolve_numeric_domain (no)
                  Resolve  "user@ipaddress"  as  "user@[ipaddress]",  instead   of
                  rejecting the address as invalid.
    
           Available with Postfix version 2.5 and later:
    
           allow_min_user (no)
                  Allow  a  sender  or  recipient address to have '-' as the first
                  character.
    
    
    

    ADDRESS REWRITING CONTROLS

           myorigin ($myhostname)
                  The domain name that locally-posted mail appears to  come  from,
                  and that locally posted mail is delivered to.
    
           allow_percent_hack (yes)
                  Enable the rewriting of the form "user%domain" to "user@domain".
    
           append_at_myorigin (yes)
                  With locally submitted mail, append the string  "@$myorigin"  to
                  mail addresses without domain information.
    
           append_dot_mydomain (yes)
                  With  locally  submitted mail, append the string ".$mydomain" to
                  addresses that have no ".domain" information.
    
           recipient_delimiter (empty)
                  The  separator  between  user  names  and   address   extensions
                  (user+foo).
    
           swap_bangpath (yes)
                  Enable the rewriting of "site!user" into "user@site".
    
                  final delivery to domains listed  with  mydestination,  and  for
                  [ipaddress]   destinations   that   match   $inet_interfaces  or
                  $proxy_interfaces.
    
           virtual_transport (virtual)
                  The default mail delivery transport and next-hop destination for
                  final  delivery to domains listed with $virtual_mailbox_domains.
    
           relay_transport (relay)
                  The default mail delivery transport and next-hop destination for
                  remote delivery to domains listed with $relay_domains.
    
           default_transport (smtp)
                  The default mail delivery transport and next-hop destination for
                  destinations that do not match $mydestination, $inet_interfaces,
                  $proxy_interfaces,     $virtual_alias_domains,    $virtual_mail-
                  box_domains, or $relay_domains.
    
           parent_domain_matches_subdomains (see 'postconf -d' output)
                  What Postfix features match subdomains of "domain.tld" automati-
                  cally, instead of requiring an explicit ".domain.tld" pattern.
    
           relayhost (empty)
                  The  next-hop destination of non-local mail; overrides non-local
                  domains in recipient addresses.
    
           transport_maps (empty)
                  Optional lookup tables with mappings from recipient  address  to
                  (message delivery transport, next-hop destination).
    
           Available in Postfix version 2.3 and later:
    
           sender_dependent_relayhost_maps (empty)
                  A  sender-dependent  override for the global relayhost parameter
                  setting.
    
           Available in Postfix version 2.5 and later:
    
           empty_address_relayhost_maps_lookup_key (<>)
                  The sender_dependent_relayhost_maps search string that  will  be
                  used instead of the null sender address.
    
    
    

    ADDRESS VERIFICATION CONTROLS

           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:
    
           address_verify_local_transport ($local_transport)
                  Overrides the local_transport parameter setting for address ver-
    
           address_verify_relayhost ($relayhost)
                  Overrides the relayhost parameter setting for address  verifica-
                  tion probes.
    
           address_verify_transport_maps ($transport_maps)
                  Overrides the transport_maps parameter setting for address veri-
                  fication probes.
    
           Available in Postfix version 2.3 and later:
    
           address_verify_sender_dependent_relayhost_maps          ($sender_depen-
           dent_relayhost_maps)
                  Overrides the sender_dependent_relayhost_maps parameter  setting
                  for address verification probes.
    
    
    

    MISCELLANEOUS CONTROLS

           config_directory (see 'postconf -d' output)
                  The  default  location of the Postfix main.cf and master.cf con-
                  figuration files.
    
           daemon_timeout (18000s)
                  How much time a Postfix daemon process  may  take  to  handle  a
                  request before it is terminated by a built-in watchdog timer.
    
           empty_address_recipient (MAILER-DAEMON)
                  The recipient of mail addressed to the null address.
    
           ipc_timeout (3600s)
                  The  time  limit  for  sending  or receiving information over an
                  internal communication channel.
    
           max_idle (100s)
                  The maximum amount of time that an idle Postfix  daemon  process
                  waits for an incoming connection before terminating voluntarily.
    
           max_use (100)
                  The maximal number of incoming connections that a Postfix daemon
                  process will service before terminating voluntarily.
    
           relocated_maps (empty)
                  Optional lookup tables with new contact information for users or
                  domains that no longer exist.
    
           process_id (read-only)
                  The process ID of a Postfix command or daemon process.
    
           process_name (read-only)
                  The process name of a Postfix command or daemon process.
    
           queue_directory (see 'postconf -d' output)
                  The location of the Postfix top-level queue directory.
    
           helpful_warnings (yes)
                  Log  warnings about problematic configuration settings, and pro-
                  vide helpful suggestions.
    
    
    

    SEE ALSO

           postconf(5), configuration parameters
           transport(5), transport table format
           relocated(5), format of the "user has moved" table
           master(8), process manager
           syslogd(8), system logging
    
    
    

    README FILES

           Use "postconf readme_directory" or "postconf html_directory" to  locate
           this information.
           ADDRESS_CLASS_README, Postfix address classes howto
           ADDRESS_VERIFICATION_README, Postfix address verification
    
    
    

    LICENSE

           The Secure Mailer license must be distributed with this software.
    
    
    

    AUTHOR(S)

           Wietse Venema
           IBM T.J. Watson Research
           P.O. Box 704
           Yorktown Heights, NY 10598, USA
    
                                                                TRIVIAL-REWRITE(8)
    
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