Postfix /etc/postfix/relocated

Authentic ๐Ÿ“‹ Alpine Linux v3.21 179 lines

Compatibility

Currently viewing:
Alpine Linux v3.21
Also compatible:
Different versions:

File Info

Size
179 lines
MD5
02d329d2cafa919a90407c9c080d1f7e
SHA256
6766dfb5f620a8e48ddac32cd8e13a97a144b5efe1a1d46dd44b2179ad410c1d

Quick Commands

curl:
curl https://exampleconfig.com/api/v1/config/original/02d329d2cafa919a90407c9c080d1f7e?hint=relocated
wget:
wget -O relocated https://exampleconfig.com/api/v1/config/original/02d329d2cafa919a90407c9c080d1f7e?hint=relocated
/etc/postfix/relocated
# 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  a  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 available in Postfix 2.5 and later.
# 
#        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, $2 and so on.
# 
# TCP-BASED TABLES
#        This section describes how the table lookups  change  when
#        lookups are directed to a TCP-based server. For a descrip-
#        tion of the TCP client/server lookup protocol, see tcp_ta-
#        ble(5).   This  feature  is  available  in Postfix 2.5 and
#        later.
# 
#        Each lookup operation uses the entire address once.  Thus,
#        user@domain  mail  addresses  are not broken up into their
#        user and @domain constituent parts, nor is user+foo broken
#        up into user and foo.
# 
#        Results are the same as with indexed file lookups.
# 
# BUGS
#        The  table format does not understand quoting conventions.
# 
# CONFIGURATION PARAMETERS
#        The following main.cf parameters are especially  relevant.
#        The  text  below  provides  only  a parameter summary. See
#        postconf(5) for more details including examples.
# 
#        relocated_maps (empty)
#               Optional lookup tables with new contact information
#               for users or domains that no longer exist.
# 
#        Other parameters of interest:
# 
#        inet_interfaces (all)
#               The  local  network  interface  addresses that this
#               mail system receives mail on.
# 
#        mydestination  ($myhostname,  localhost.$mydomain,  local-
#        host)
#               The list of domains  that  are  delivered  via  the
#               $local_transport mail delivery transport.
# 
#        myorigin ($myhostname)
#               The domain name that locally-posted mail appears to
#               come from, and that locally posted mail  is  deliv-
#               ered to.
# 
#        proxy_interfaces (empty)
#               The  remote  network  interface addresses that this
#               mail system receives mail on by way of a  proxy  or
#               network address translation unit.
# 
# 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)

How to Install Postfix

Alpine Linux

sudo apk add postfix

Debian

sudo apt update && sudo apt install postfix

Red Hat Enterprise Linux

sudo yum install postfix

Ubuntu

sudo apt update && sudo apt install postfix

Configuration File Location

File Path
/etc/postfix/relocated
Directory
/etc/postfix/
Significance
System-wide configuration directory
Description
Files in /etc/ contain system-wide configuration settings that affect all users.

Complete Postfix Configuration Guide

What is relocated?
Download the original 'relocated' (main.cf) configuration file from a fresh Postfix installation on Alpine Linux v3.21. This is the factory-default mail server configuration, essential for email system recovery, anti-spam setup, and understanding secure mail relay settings.
Technical Details
Located at '/etc/postfix/relocated', this 179-line file controls SMTP authentication, TLS encryption, spam filtering, mail routing, and delivery policies. Powers email infrastructure for millions of domains and handles everything from personal mail servers to enterprise email systems processing thousands of messages daily.
Common Configuration Question
How do you configure Postfix for secure mail delivery, spam prevention, and high availability on Alpine Linux 3.21?
Why Use This Configuration?
This default configuration includes SPF/DKIM support, TLS encryption, and anti-spam measures. Critical for email administrators, system administrators, and DevOps engineers managing production mail infrastructure.

Frequently Asked Questions

When should I use this relocated file?

Use this original configuration file when you need to restore Postfix to its default state after misconfiguration, during fresh installations, or as a baseline for customization. It's particularly useful for troubleshooting when your current config isn't working properly.

How do I restore Postfix to default settings?

Download this file and replace your current configuration at /etc/postfix/relocated. Make sure to backup your existing configuration first, then restart the Postfix service to apply the changes.

Is this relocated file secure for production use?

This is the factory-default configuration that ships with Postfix on Alpine Linux v3.21. While it provides a secure baseline, you should review and customize security settings based on your specific production requirements and compliance needs.

What's the difference between this and other OS versions?

This configuration is specifically from Alpine Linux v3.21. Different operating systems and versions may have slightly different default settings, security patches, or feature availability. Check the compatibility section above for other OS versions.

Can I use this configuration file for Postfix troubleshooting?

Yes, this original configuration is excellent for troubleshooting. Compare it with your current settings to identify modifications that might be causing issues, or temporarily replace your config with this one to isolate problems.