Provided by: postfix_2.2.10-1_i386
trivial-rewrite - Postfix address rewriting and resolving daemon
trivial-rewrite [generic Postfix daemon options]
The trivial-rewrite(8) daemon processes three types of client service
rewrite context address
Rewrite an address to standard form, according to the address
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
Resolve an address to a (transport, nexthop, recipient, flags)
quadruple. The meaning of the results is as follows:
The delivery agent to use. This is the first field of an
entry in the master.cf file.
The host to send to and optional delivery method
The envelope recipient address that is passed on to
flags The address class, whether the address requires relaying,
whether the address has problems, and whether the request
Resolve an 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 $max_idle seconds of idle
None. The command does not interact with the outside world.
The trivial-rewrite(8) daemon is not security sensitive. By default,
this daemon does not talk to remote or local users. It can run at a
fixed low privilege in a chrooted environment.
Problems and transactions are logged to syslogd(8).
On busy mail systems a long time may pass before a main.cf change
affecting trivial-rewrite(8) is picked up. Use the command "postfix
reload" to speed up a change.
The text below provides only a parameter summary. See postconf(5) for
more details including examples.
Resolve a recipient address safely instead of correctly, by
looking inside quotes.
Resolve an address that ends in the "@" null domain as if the
local hostname were specified, instead of rejecting the address
ADDRESS REWRITING CONTROLS
The domain name that locally-posted mail appears to come from,
and that locally posted mail is delivered to.
Enable the rewriting of the form "user%domain" to "user@domain".
With locally submitted mail, append the string "@$myorigin" to
mail addresses without domain information.
With locally submitted mail, append the string ".$mydomain" to
addresses that have no ".domain" information.
The separator between user names and address extensions
Enable the rewriting of "site!user" into "user@site".
Available in Postfix 2.2 and later:
Donβt rewrite message headers from remote clients at all when
this parameter is empty; otherwise, rewrite remote message
headers and append the specified domain name to incomplete
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.
The default mail delivery transport for domains that match
$mydestination, $inet_interfaces or $proxy_interfaces.
The default mail delivery transport for domains that match the
$virtual_mailbox_domains parameter value.
The default mail delivery transport and next-hop information for
domains that match the $relay_domains parameter value.
The default mail delivery transport for domains that do not
match $mydestination, $inet_interfaces, $proxy_interfaces,
$virtual_alias_domains, $virtual_mailbox_domains, or
parent_domain_matches_subdomains (see ββpostconf -dββ output)
What Postfix features match subdomains of "domain.tld"
automatically, instead of requiring an explicit ".domain.tld"
The default host to send non-local mail to when no entry is
matched in the optional transport(5) table.
Optional lookup tables with mappings from recipient address to
(message delivery transport, next-hop destination).
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:
Overrides the local_transport parameter setting for address
Overrides the virtual_transport parameter setting for address
Overrides the relay_transport parameter setting for address
Overrides the default_transport parameter setting for address
Overrides the relayhost parameter setting for address
Overrides the transport_maps parameter setting for address
config_directory (see ββpostconf -dββ output)
The default location of the Postfix main.cf and master.cf
How much time a Postfix daemon process may take to handle a
request before it is terminated by a built-in watchdog timer.
The recipient of mail addressed to the null address.
The time limit for sending or receiving information over an
internal communication channel.
The maximum amount of time that an idle Postfix daemon process
waits for the next service request before exiting.
The maximal number of connection requests before a Postfix
daemon process terminates.
Optional lookup tables with new contact information for users or
domains that no longer exist.
The process ID of a Postfix command or daemon process.
The process name of a Postfix command or daemon process.
queue_directory (see ββpostconf -dββ output)
The location of the Postfix top-level queue directory.
Display the name of the recipient table in the "User unknown"
The syslog facility of Postfix logging.
The mail system name that is prepended to the process name in
syslog records, so that "smtpd" becomes, for example,
Available in Postfix version 2.0 and later:
Log warnings about problematic configuration settings, and
provide helpful suggestions.
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
Use "postconf readme_directory" or "postconf html_directory" to locate
ADDRESS_CLASS_README, Postfix address classes howto
ADDRESS_VERIFICATION_README, Postfix address verification
The Secure Mailer license must be distributed with this software.
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA