# man > RELOCATED(5) [_RELOCATED_(5)](https://www.chedong.com/phpMan.php/man/RELOCATED/5/markdown) File Formats Manual [_RELOCATED_(5)](https://www.chedong.com/phpMan.php/man/RELOCATED/5/markdown) ## NAME relocated - Postfix relocated table format ## SYNOPSIS ### postmap /etc/postfix/relocated ## DESCRIPTION The optional [**relocated**(5)](https://www.chedong.com/phpMan.php/man/relocated/5/markdown) table provides the information that is used in "user has moved to _new_location_" bounce messages. Normally, the [**relocated**(5)](https://www.chedong.com/phpMan.php/man/relocated/5/markdown) table is specified as a text file that serves as input to the [**postmap**(1)](https://www.chedong.com/phpMan.php/man/postmap/1/markdown) 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 regular-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 TA‐ BLES" 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)](https://www.chedong.com/phpMan.php/man/postmap/1/markdown) command is as follows: • 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. • Empty lines and whitespace-only lines are ignored, as are lines whose first non-white‐ space character is a `#'. • A logical line starts with non-whitespace text. A line that starts with whitespace continues a logical 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 recipient delimiter (e.g., _user+foo_@_do‐_ _main_), 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)](https://www.chedong.com/phpMan.php/man/regexptable/5/markdown) or [**pcre_table**(5)](https://www.chedong.com/phpMan.php/man/pcretable/5/markdown). For a descrip‐ tion of the TCP client/server table lookup protocol, see [**tcp_table**(5)](https://www.chedong.com/phpMan.php/man/tcptable/5/markdown). 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 table, until a pattern is found that matches the search string. Results are the same as with indexed file lookups, with the additional feature that parenthe‐ sized substrings from the pattern can be interpolated as **$1**, **$2 **and so on. ## TCP-BASED TABLES This section describes how the table lookups change when lookups are directed to a TCP-based server. For a description of the TCP client/server lookup protocol, see [**tcp_table**(5)](https://www.chedong.com/phpMan.php/man/tcptable/5/markdown). This feature is available in Postfix 2.5 and later. Each lookup operation uses the entire address once. Thus, _user@domain_ mail addresses are not broken up into their _user_ and _@domain_ constituent parts, nor is _user+foo_ broken up into _user_ and _foo_. Results are the same as with indexed file lookups. ## BUGS The table format does not understand quoting conventions. ## CONFIGURATION PARAMETERS The following **main.cf **parameters are especially relevant. The text below provides only a pa‐ rameter summary. See [**postconf**(5)](https://www.chedong.com/phpMan.php/man/postconf/5/markdown) for more details including examples. ### relocated_maps (empty) Optional lookup tables with new contact information for users or domains that no longer exist. Other parameters of interest: ### inet_interfaces (all) The network interface addresses that this mail system receives mail on. ### mydestination ($myhostname, localhost.$mydomain, localhost) The list of domains that are delivered via the $local_transport mail delivery trans‐ port. ### myorigin ($myhostname) The domain name that locally-posted mail appears to come from, and that locally posted mail is delivered to. ### proxy_interfaces (empty) The 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)](https://www.chedong.com/phpMan.php/man/trivial-rewrite/8/markdown), address resolver [postmap(1)](https://www.chedong.com/phpMan.php/man/postmap/1/markdown), Postfix lookup table manager [postconf(5)](https://www.chedong.com/phpMan.php/man/postconf/5/markdown), configuration parameters ## README FILES Use "**postconf readme_directory**" or "**postconf html_directory**" 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)](https://www.chedong.com/phpMan.php/man/RELOCATED/5/markdown)