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Linux 2.6 - man page for relocated (linux section 5)

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 regular-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 per-
	      haps 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 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@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 fea-
       ture 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 con-
       stituent 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 paren-
       thesized 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_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 Postfix 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 net-
	      work address translator.

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_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

										     RELOCATED(5)


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