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trivial-rewrite (8)
  • trivial-rewrite (8) ( Русские man: Команды системного администрирования )
  • >> trivial-rewrite (8) ( Linux man: Команды системного администрирования )
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    NAME

    trivial-rewrite
    -
    Postfix address rewriting and resolving daemon
     
    

    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 information.
    recipient
    The envelope recipient address that is passed on to nexthop.
    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 limit is not exceeded.
    Each trivial-rewrite server terminates after
    serving at least $max_use clients of after $max_idle
    seconds of idle time.
     
    

    STANDARDS

    
    
    None. The command does not interact with the outside world.
     
    

    SECURITY

    
    
    The trivial-rewrite(8) 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.
     
    

    DIAGNOSTICS

    Problems and transactions are logged to syslogd(8).  

    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.
     

    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".

    Available in Postfix 2.2 and later:

    remote_header_rewrite_domain (empty)
    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.
     

    ROUTING CONTROLS

    
    
    The following is applicable to Postfix version 2.0 and later.
    Earlier versions do not have support for: virtual_transport,
    relay_transport, virtual_alias_domains, virtual_mailbox_domains
    or proxy_interfaces.
    
    local_transport (local:$myhostname)
    The default mail delivery transport and next-hop destination for 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_mailbox_domains, or $relay_domains.
    parent_domain_matches_subdomains (see 'postconf -d' output)
    What Postfix features match subdomains of "domain.tld" automatically, 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.
     

    ADDRESS VERIFICATION CONTROLS

    
    
    Postfix version 2.1 introduces sender and recipient address verification.
    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 ($local_transport)
    Overrides the local_transport parameter setting for address verification probes.
    address_verify_virtual_transport ($virtual_transport)
    Overrides the virtual_transport parameter setting for address verification probes.
    address_verify_relay_transport ($relay_transport)
    Overrides the relay_transport parameter setting for address verification probes.
    address_verify_default_transport ($default_transport)
    Overrides the default_transport parameter setting for address verification probes.
    address_verify_relayhost ($relayhost)
    Overrides the relayhost parameter setting for address verification probes.
    address_verify_transport_maps ($transport_maps)
    Overrides the transport_maps parameter setting for address verification probes.

    Available in Postfix version 2.3 and later:

    address_verify_sender_dependent_relayhost_maps (empty)
    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 configuration 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 the next service request before exiting.
    max_use (100)
    The maximal number of connection requests before a Postfix daemon process terminates.
    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.
    show_user_unknown_table_name (yes)
    Display the name of the recipient table in the "User unknown" responses.
    syslog_facility (mail)
    The syslog facility of Postfix logging.
    syslog_name (postfix)
    The mail system name that is prepended to the process name in syslog records, so that "smtpd" becomes, for example, "postfix/smtpd".

    Available in Postfix version 2.0 and later:

    helpful_warnings (yes)
    Log warnings about problematic configuration settings, and provide 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
    
    

     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    SERVER PROCESS MANAGEMENT
    STANDARDS
    SECURITY
    DIAGNOSTICS
    CONFIGURATION PARAMETERS
    COMPATIBILITY CONTROLS
    ADDRESS REWRITING CONTROLS
    ROUTING CONTROLS
    ADDRESS VERIFICATION CONTROLS
    MISCELLANEOUS CONTROLS
    SEE ALSO
    README FILES
    LICENSE
    AUTHOR(S)


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