NetBSD/gnu/dist/postfix/conf/transport

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#++
# NAME
# transport 5
# SUMMARY
# format of Postfix transport table
# SYNOPSIS
# \fBpostmap /etc/postfix/transport\fR
# DESCRIPTION
# The optional \fBtransport\fR file specifies a mapping from domain
# hierarchies to message delivery transports and/or relay hosts. The
# mapping is used by the \fBtrivial-rewrite\fR(8) daemon.
#
# The file serves as input to the \fBpostmap\fR(1) command. The result,
# an indexed file in \fBdbm\fR or \fBdb\fR format, is used for
# fast searching by the mail system. After updating this table,
# issue the \fBpostfix reload\fR command to make the change visible.
#
# The format of the transport table is as follows:
# .IP "blanks and comments"
# Blank lines are ignored, as are lines beginning with `#'.
# .IP "\fIdomain transport\fR:\fInexthop\fR"
# Mail for \fIdomain\fR is delivered through \fItransport\fR to
# \fInexthop\fR.
# .IP "\fI.domain transport\fR:\fInexthop\fR"
# Mail for any subdomain of \fIdomain\fR is delivered through
# \fItransport\fR to \fInexthop\fR.
# .PP
# Note: transport map entries take precedence over domains
# specified in the \fBmydestination\fR parameter. If you use
# the optional transport map, it may be safer to specify explicit
# entries for all domains specified in \fBmydestination\fR,
# for example:
#
# .ti +5
# \fBhostname.my.domain local:\fR
# .ti +5
# \fBlocalhost.my.domain local:\fR
#
# The interpretation of the \fInexthop\fR field is transport
# dependent. In the case of SMTP, specify \fIhost\fR:\fIservice\fR for a
# non-default server port, and use [\fIhost\fR] or [\fIhost\fR:\fIport\fR]
# in order to disable MX (mail exchanger) DNS lookups. The [] form
# can also be used with IP addresses instead of hostnames.
# EXAMPLES
# .ad
# In order to send mail for \fBfoo.org\fR and its subdomains
# via the \fBuucp\fR transport to the UUCP host named \fBfoo\fR:
#
# .ti +5
# \fBfoo.org uucp:foo\fR
# .ti +5
# \fB\&.foo.org uucp:foo\fR
#
# When no \fInexthop\fR host name is specified, the destination domain
# name is used instead. For example, the following directs mail for
# \fIuser\fR@\fBfoo.org\fR via the \fBslow\fR transport to a mail
# exchanger for \fBfoo.org\fR. The \fBslow\fR transport could be
# something that runs at most one delivery process at a time:
#
# .ti +5
# \fBfoo.org slow:\fR
#
# When no \fItransport\fR is specified, the default transport is
# used, as specified via the \fBdefault_transport\fR configuration
# parameter. The following sends all mail for \fBfoo.org\fR and its
# subdomains to host \fBgateway.foo.org\fR:
#
# .ti +5
# \fBfoo.org :[gateway.foo.org]\fR
# .ti +5
# \fB\&.foo.org :[gateway.foo.org]\fR
#
# In the above example, the [] are used to suppress MX lookups.
# The result would likely point to your local machine.
#
# In the case of delivery via SMTP, one may specify
# \fIhostname\fR:\fIservice\fR instead of just a host:
#
# .ti +5
# \fBfoo.org smtp:bar.org:2025\fR
#
# This directs mail for \fIuser\fR@\fBfoo.org\fR to host \fBbar.org\fR
# port \fB2025\fR. Instead of a numerical port a symbolic name may be
# used. Specify [] around the destination in order to disable MX lookups.
#
# The error mailer can be used to bounce mail:
#
# .ti +5
# \fB\&.foo.org error:mail for *.foo.org is not deliverable\fR
#
# This causes all mail for \fIuser\fR@\fIanything\fBfoo.org\fR
# to be bounced.
# CONFIGURATION PARAMETERS
# .ad
# .fi
# The following \fBmain.cf\fR parameters are especially relevant to
# this topic. See the Postfix \fBmain.cf\fR file for syntax details
# and for default values. Use the \fBpostfix reload\fR command after
# a configuration change.
# .IP \fBtransport_maps\fR
# List of transport lookup tables.
# .PP
# Other parameters of interest:
# .IP \fBdefault_transport\fR
# The transport to use when no transport is explicitly specified.
# .IP \fBrelayhost\fR
# The default host to send to when no transport table entry matches.
# SEE ALSO
# postmap(1) create mapping table
# trivial-rewrite(8) rewrite and resolve addresses
# LICENSE
# .ad
# .fi
# 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
#--
# By default, this file is not used. See sample-transport.cf