Get the default configuration file relocated for Postfix, optimized for CentOS Linux 8. This example configuration ensures optimal compatibility and performance for Postfix, making it easy to set up and adjust to meet your needs.
Find and download the configuration file here: /etc/postfix/relocated.
For more configurations and setup guides, visit our related files section to further customize your system.
# RELOCATED(5) RELOCATED(5)
#
# NAME
# relocated - Postfix relocated table format
#
# SYNOPSIS
# postmap /etc/postfix/relocated
#
# DESCRIPTION
# The optional relocated(5) table provides the information
# that is used in "user has moved to new_location" bounce
# messages.
#
# Normally, the relocated(5) table is specified as a text
# file that serves as input to the postmap(1) command. The
# result, an indexed file in dbm or db format, is used for
# fast searching by the mail system. Execute the command
# "postmap /etc/postfix/relocated" to rebuild an indexed
# file after changing the corresponding relocated table.
#
# When the table is provided via other means such as NIS,
# LDAP or SQL, the same lookups are done as for ordinary
# indexed files.
#
# Alternatively, the table can be provided as a regu-
# lar-expression map where patterns are given as regular
# expressions, or lookups can be directed to TCP-based
# server. In those case, the lookups are done in a slightly
# different way as described below under "REGULAR EXPRESSION
# TABLES" or "TCP-BASED TABLES".
#
# Table lookups are case insensitive.
#
# CASE FOLDING
# The search string is folded to lowercase before database
# lookup. As of Postfix 2.3, the search string is not case
# folded with database types such as regexp: or pcre: whose
# lookup fields can match both upper and lower case.
#
# TABLE FORMAT
# The input format for the postmap(1) command is as follows:
#
# o An entry has one of the following form:
#
# pattern new_location
#
# Where new_location specifies contact information
# such as an email address, or perhaps a street
# address or telephone number.
#
# o Empty lines and whitespace-only lines are ignored,
# as are lines whose first non-whitespace character
# is a `#'.
#
# o A logical line starts with non-whitespace text. A
# line that starts with whitespace continues a logi-
# cal line.
#
# TABLE SEARCH ORDER
# With lookups from indexed files such as DB or DBM, or from
# networked tables such as NIS, LDAP or SQL, patterns are
# tried in the order as listed below:
#
# user@domain
# Matches user@domain. This form has precedence over
# all other forms.
#
# user Matches user@site when site is $myorigin, when site
# is listed in $mydestination, or when site is listed
# in $inet_interfaces or $proxy_interfaces.
#
# @domain
# Matches other addresses in domain. This form has
# the lowest precedence.
#
# ADDRESS EXTENSION
# When a mail address localpart contains the optional recip-
# ient delimiter (e.g., user+foo@domain), the lookup order
# becomes: user+foo@domain, user@domain, user+foo, user, and
# @domain.
#
# REGULAR EXPRESSION TABLES
# This section describes how the table lookups change when
# the table is given in the form of regular expressions or
# when lookups are directed to a TCP-based server. For a
# description of regular expression lookup table syntax, see
# regexp_table(5) or pcre_table(5). For a description of the
# TCP client/server table lookup protocol, see tcp_table(5).
# This feature is not available up to and including Postfix
# version 2.4.
#
# Each pattern is a regular expression that is applied to
# the entire address being looked up. Thus, user@domain mail
# addresses are not broken up into their user and @domain
# constituent parts, nor is user+foo broken up into user and
# foo.
#
# Patterns are applied in the order as specified in the ta-
# ble, until a pattern is found that matches the search
# string.
#
# Results are the same as with indexed file lookups, with
# the additional feature that parenthesized substrings from
# the pattern can be interpolated as $1, $2 and so on.
#
# TCP-BASED TABLES
# This section describes how the table lookups change when
# lookups are directed to a TCP-based server. For a descrip-
# tion of the TCP client/server lookup protocol, see tcp_ta-
# ble(5). This feature is not available up to and including
# Postfix version 2.4.
#
# Each lookup operation uses the entire address once. Thus,
# user@domain mail addresses are not broken up into their
# user and @domain constituent parts, nor is user+foo broken
# up into user and foo.
#
# Results are the same as with indexed file lookups.
#
# BUGS
# The table format does not understand quoting conventions.
#
# CONFIGURATION PARAMETERS
# The following main.cf parameters are especially relevant.
# The text below provides only a parameter summary. See
# postconf(5) for more details including examples.
#
# relocated_maps
# List of lookup tables for relocated users or sites.
#
# Other parameters of interest:
#
# inet_interfaces
# The network interface addresses that this system
# receives mail on. You need to stop and start Post-
# fix when this parameter changes.
#
# mydestination
# List of domains that this mail system considers
# local.
#
# myorigin
# The domain that is appended to locally-posted mail.
#
# proxy_interfaces
# Other interfaces that this machine receives mail on
# by way of a proxy agent or network address transla-
# tor.
#
# SEE ALSO
# trivial-rewrite(8), address resolver
# postmap(1), Postfix lookup table manager
# postconf(5), configuration parameters
#
# README FILES
# Use "postconf readme_directory" or "postconf html_direc-
# tory" to locate this information.
# DATABASE_README, Postfix lookup table overview
# ADDRESS_REWRITING_README, address rewriting guide
#
# 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
#
# Wietse Venema
# Google, Inc.
# 111 8th Avenue
# New York, NY 10011, USA
#
# RELOCATED(5)
Download the raw file with wget or curl
wget -O relocated.example https://exampleconfig.com/static/raw/postfix/centos8/etc/postfix/relocated
curl https://exampleconfig.com/static/raw/postfix/centos8/etc/postfix/relocated > relocated.example
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