You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
305 lines
12 KiB
305 lines
12 KiB
# VIRTUAL(5) VIRTUAL(5)
|
|
#
|
|
# NAME
|
|
# virtual - Postfix virtual alias table format
|
|
#
|
|
# SYNOPSIS
|
|
# postmap /etc/postfix/virtual
|
|
#
|
|
# postmap -q "string" /etc/postfix/virtual
|
|
#
|
|
# postmap -q - /etc/postfix/virtual <inputfile
|
|
#
|
|
# DESCRIPTION
|
|
# The optional virtual(5) alias table rewrites recipient
|
|
# addresses for all local, all virtual, and all remote mail
|
|
# destinations. This is unlike the aliases(5) table which
|
|
# is used only for local(8) delivery. Virtual aliasing is
|
|
# recursive, and is implemented by the Postfix cleanup(8)
|
|
# daemon before mail is queued.
|
|
#
|
|
# The main applications of virtual aliasing are:
|
|
#
|
|
# o To redirect mail for one address to one or more
|
|
# addresses.
|
|
#
|
|
# o To implement virtual alias domains where all
|
|
# addresses are aliased to addresses in other
|
|
# domains.
|
|
#
|
|
# Virtual alias domains are not to be confused with
|
|
# the virtual mailbox domains that are implemented
|
|
# with the Postfix virtual(8) mail delivery agent.
|
|
# With virtual mailbox domains, each recipient
|
|
# address can have its own mailbox.
|
|
#
|
|
# Virtual aliasing is applied only to recipient envelope
|
|
# addresses, and does not affect message headers. Use
|
|
# canonical(5) mapping to rewrite header and envelope
|
|
# addresses in general.
|
|
#
|
|
# Normally, the virtual(5) alias 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/virtual" to rebuild an indexed file
|
|
# after changing the corresponding text file.
|
|
#
|
|
# 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".
|
|
#
|
|
# 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:
|
|
#
|
|
# pattern address, address, ...
|
|
# When pattern matches a mail address, replace it by
|
|
# the corresponding address.
|
|
#
|
|
# blank lines and comments
|
|
# Empty lines and whitespace-only lines are ignored,
|
|
# as are lines whose first non-whitespace character
|
|
# is a `#'.
|
|
#
|
|
# multi-line text
|
|
# 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, each
|
|
# user@domain query produces a sequence of query patterns as
|
|
# described below.
|
|
#
|
|
# Each query pattern is sent to each specified lookup table
|
|
# before trying the next query pattern, until a match is
|
|
# found.
|
|
#
|
|
# user@domain address, address, ...
|
|
# Redirect mail for user@domain to address. This
|
|
# form has the highest precedence.
|
|
#
|
|
# user address, address, ...
|
|
# Redirect mail for user@site to address when site is
|
|
# equal to $myorigin, when site is listed in $mydes-
|
|
# tination, or when it is listed in $inet_interfaces
|
|
# or $proxy_interfaces.
|
|
#
|
|
# This functionality overlaps with functionality of
|
|
# the local aliases(5) database. The difference is
|
|
# that virtual(5) mapping can be applied to non-local
|
|
# addresses.
|
|
#
|
|
# @domain address, address, ...
|
|
# Redirect mail for other users in domain to address.
|
|
# This form has the lowest precedence.
|
|
#
|
|
# Note: @domain is a wild-card. With this form, the
|
|
# Postfix SMTP server accepts mail for any recipient
|
|
# in domain, regardless of whether that recipient
|
|
# exists. This may turn your mail system into a
|
|
# backscatter source: Postfix first accepts mail for
|
|
# non-existent recipients and then tries to return
|
|
# that mail as "undeliverable" to the often forged
|
|
# sender address.
|
|
#
|
|
# RESULT ADDRESS REWRITING
|
|
# The lookup result is subject to address rewriting:
|
|
#
|
|
# o When the result has the form @otherdomain, the
|
|
# result becomes the same user in otherdomain. This
|
|
# works only for the first address in a multi-address
|
|
# lookup result.
|
|
#
|
|
# o When "append_at_myorigin=yes", append "@$myorigin"
|
|
# to addresses without "@domain".
|
|
#
|
|
# o When "append_dot_mydomain=yes", append ".$mydomain"
|
|
# to addresses without ".domain".
|
|
#
|
|
# 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.
|
|
#
|
|
# The propagate_unmatched_extensions parameter controls
|
|
# whether an unmatched address extension (+foo) is propa-
|
|
# gated to the result of table lookup.
|
|
#
|
|
# VIRTUAL ALIAS DOMAINS
|
|
# Besides virtual aliases, the virtual alias table can also
|
|
# be used to implement virtual alias domains. With a virtual
|
|
# alias domain, all recipient addresses are aliased to
|
|
# addresses in other domains.
|
|
#
|
|
# Virtual alias domains are not to be confused with the vir-
|
|
# tual mailbox domains that are implemented with the Postfix
|
|
# virtual(8) mail delivery agent. With virtual mailbox
|
|
# domains, each recipient address can have its own mailbox.
|
|
#
|
|
# With a virtual alias domain, the virtual domain has its
|
|
# own user name space. Local (i.e. non-virtual) usernames
|
|
# are not visible in a virtual alias domain. In particular,
|
|
# local aliases(5) and local mailing lists are not visible
|
|
# as localname@virtual-alias.domain.
|
|
#
|
|
# Support for a virtual alias domain looks like:
|
|
#
|
|
# /etc/postfix/main.cf:
|
|
# virtual_alias_maps = hash:/etc/postfix/virtual
|
|
#
|
|
# Note: some systems use dbm databases instead of hash. See
|
|
# the output from "postconf -m" for available database
|
|
# types.
|
|
#
|
|
# /etc/postfix/virtual:
|
|
# virtual-alias.domain anything (right-hand content does not matter)
|
|
# postmaster@virtual-alias.domain postmaster
|
|
# user1@virtual-alias.domain address1
|
|
# user2@virtual-alias.domain address2, address3
|
|
#
|
|
# The virtual-alias.domain anything entry is required for a
|
|
# virtual alias domain. Without this entry, mail is rejected
|
|
# with "relay access denied", or bounces with "mail loops
|
|
# back to myself".
|
|
#
|
|
# Do not specify virtual alias domain names in the main.cf
|
|
# mydestination or relay_domains configuration parameters.
|
|
#
|
|
# With a virtual alias domain, the Postfix SMTP server
|
|
# accepts mail for known-user@virtual-alias.domain, and
|
|
# rejects mail for unknown-user@virtual-alias.domain as
|
|
# undeliverable.
|
|
#
|
|
# Instead of specifying the virtual alias domain name via
|
|
# the virtual_alias_maps table, you may also specify it via
|
|
# the main.cf virtual_alias_domains configuration parameter.
|
|
# This latter parameter uses the same syntax as the main.cf
|
|
# mydestination configuration parameter.
|
|
#
|
|
# REGULAR EXPRESSION TABLES
|
|
# This section describes how the table lookups change when
|
|
# the table is given in the form of regular expressions. For
|
|
# a description of regular expression lookup table syntax,
|
|
# see regexp_table(5) or pcre_table(5).
|
|
#
|
|
# 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
|
|
# to this topic. See the Postfix main.cf file for syntax
|
|
# details and for default values. Use the "postfix reload"
|
|
# command after a configuration change.
|
|
#
|
|
# virtual_alias_maps
|
|
# List of virtual aliasing tables.
|
|
#
|
|
# virtual_alias_domains
|
|
# List of virtual alias domains. This uses the same
|
|
# syntax as the mydestination parameter.
|
|
#
|
|
# propagate_unmatched_extensions
|
|
# A list of address rewriting or forwarding mecha-
|
|
# nisms that propagate an address extension from the
|
|
# original address to the result. Specify zero or
|
|
# more of canonical, virtual, alias, forward,
|
|
# include, or generic.
|
|
#
|
|
# 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 any address that
|
|
# does not have a domain.
|
|
#
|
|
# owner_request_special
|
|
# Give special treatment to owner-xxx and xxx-request
|
|
# addresses.
|
|
#
|
|
# proxy_interfaces
|
|
# Other interfaces that this machine receives mail on
|
|
# by way of a proxy agent or network address transla-
|
|
# tor.
|
|
#
|
|
# SEE ALSO
|
|
# cleanup(8), canonicalize and enqueue mail
|
|
# postmap(1), Postfix lookup table manager
|
|
# postconf(5), configuration parameters
|
|
# canonical(5), canonical address mapping
|
|
#
|
|
# README FILES
|
|
# Use "postconf readme_directory" or "postconf html_direc-
|
|
# tory" to locate this information.
|
|
# ADDRESS_REWRITING_README, address rewriting guide
|
|
# DATABASE_README, Postfix lookup table overview
|
|
# VIRTUAL_README, domain hosting 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
|
|
#
|
|
# VIRTUAL(5)
|