Adding upstream version 3.8.5.upstream/3.8.5

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 304 insertions, 0 deletions

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+#++
+# NAME
+#	virtual 5
+# SUMMARY
+#	Postfix virtual alias table format
+# SYNOPSIS
+#	\fBpostmap /etc/postfix/virtual\fR
+#
+#	\fBpostmap -q "\fIstring\fB" /etc/postfix/virtual\fR
+#
+#	\fBpostmap -q - /etc/postfix/virtual <\fIinputfile\fR
+# DESCRIPTION
+#	The optional \fBvirtual\fR(5) alias table rewrites recipient
+#	addresses for all local, all virtual, and all remote mail
+#	destinations.
+#	This is unlike the \fBaliases\fR(5) table which is used
+#	only for \fBlocal\fR(8) delivery. This feature is implemented
+#	in the Postfix \fBcleanup\fR(8) daemon before mail is queued.
+#
+#	Virtual aliasing is recursive; to terminate recursion for
+#	a specific address, alias that address to itself.
+#
+#	The main applications of virtual aliasing are:
+# .IP \(bu
+#	To redirect mail for one address to one or more addresses.
+# .IP \(bu
+#	To implement virtual alias domains where all addresses are aliased
+#	to addresses in other domains.
+# .sp
+#	Virtual alias domains are not to be confused with the virtual mailbox
+#	domains that are implemented with the Postfix \fBvirtual\fR(8) mail
+#	delivery agent. With virtual mailbox domains, each recipient address
+#	can have its own mailbox.
+# .PP
+#	Virtual aliasing is applied only to recipient
+#	envelope addresses, and does not affect message headers.
+#	Use \fBcanonical\fR(5)
+#	mapping to rewrite header and envelope addresses in general.
+#
+#	Normally, the \fBvirtual\fR(5) alias table is specified as a text file
+#	that serves as input to the \fBpostmap\fR(1) command.
+#	The result, an indexed file in \fBdbm\fR or \fBdb\fR format,
+#	is used for fast searching by the mail system. Execute the command
+#	"\fBpostmap /etc/postfix/virtual\fR" 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 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 TABLES" or "TCP-BASED TABLES".
+# CASE FOLDING
+# .ad
+# .fi
+#	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
+# .ad
+# .fi
+#	The input format for the \fBpostmap\fR(1) command is as follows:
+# .IP "\fIpattern address, address, ...\fR"
+#	When \fIpattern\fR matches a mail address, replace it by the
+#	corresponding \fIaddress\fR.
+# .IP "blank lines and comments"
+#	Empty lines and whitespace-only lines are ignored, as
+#	are lines whose first non-whitespace character is a `#'.
+# .IP "multi-line text"
+#	A logical line starts with non-whitespace text. A line that
+#	starts with whitespace continues a logical line.
+# TABLE SEARCH ORDER
+# .ad
+# .fi
+#	With lookups from indexed files such as DB or DBM, or from networked
+#	tables such as NIS, LDAP or SQL, each \fIuser\fR@\fIdomain\fR
+#	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.
+# .IP "\fIuser\fR@\fIdomain address, address, ...\fR"
+#	Redirect mail for \fIuser\fR@\fIdomain\fR to \fIaddress\fR.
+#	This form has the highest precedence.
+# .IP "\fIuser address, address, ...\fR"
+#	Redirect mail for \fIuser\fR@\fIsite\fR to \fIaddress\fR when
+#	\fIsite\fR is equal to $\fBmyorigin\fR, when \fIsite\fR is listed in
+#	$\fBmydestination\fR, or when it is listed in $\fBinet_interfaces\fR
+#	or $\fBproxy_interfaces\fR.
+#	.sp
+#	This functionality overlaps with the functionality of the local
+#	\fIaliases\fR(5) database. The difference is that \fBvirtual\fR(5)
+#	mapping can be applied to non-local addresses.
+# .IP "@\fIdomain address, address, ...\fR"
+#	Redirect mail for other users in \fIdomain\fR to \fIaddress\fR.
+#	This form has the lowest precedence.
+# .sp
+#	Note: @\fIdomain\fR is a wild-card. With this form, the
+#	Postfix SMTP server accepts
+#	mail for any recipient in \fIdomain\fR, 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.
+# .sp
+#	To avoid backscatter with mail for a wild-card domain,
+#	replace the wild-card mapping with explicit 1:1 mappings,
+#	or add a reject_unverified_recipient restriction for that
+#	domain:
+#
+# .nf
+#	    smtpd_recipient_restrictions =
+#		...
+#		reject_unauth_destination
+#		check_recipient_access
+#		    inline:{example.com=reject_unverified_recipient}
+#	    unverified_recipient_reject_code = 550
+#.fi
+#
+#	In the above example, Postfix may contact a remote server
+#	if the recipient is aliased to a remote address.
+# RESULT ADDRESS REWRITING
+# .ad
+# .fi
+#	The lookup result is subject to address rewriting:
+# .IP \(bu
+#	When the result has the form @\fIotherdomain\fR, the
+#	result becomes the same \fIuser\fR in \fIotherdomain\fR.
+#	This works only for the first address in a multi-address
+#	lookup result.
+# .IP \(bu
+#	When "\fBappend_at_myorigin=yes\fR", append "\fB@$myorigin\fR"
+#	to addresses without "@domain".
+# .IP \(bu
+#	When "\fBappend_dot_mydomain=yes\fR", append
+#	"\fB.$mydomain\fR" to addresses without ".domain".
+# ADDRESS EXTENSION
+# .fi
+# .ad
+#	When a mail address localpart contains the optional recipient delimiter
+#	(e.g., \fIuser+foo\fR@\fIdomain\fR), the lookup order becomes:
+#	\fIuser+foo\fR@\fIdomain\fR, \fIuser\fR@\fIdomain\fR, \fIuser+foo\fR,
+#	\fIuser\fR, and @\fIdomain\fR.
+#
+#	The \fBpropagate_unmatched_extensions\fR parameter controls whether
+#	an unmatched address extension (\fI+foo\fR) is propagated to the
+#	result of a table lookup.
+# VIRTUAL ALIAS DOMAINS
+# .ad
+# .fi
+#	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 virtual mailbox
+#	domains that are implemented with the Postfix \fBvirtual\fR(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
+#	\fBaliases\fR(5) and local mailing lists are not visible as
+#	\fIlocalname@virtual-alias.domain\fR.
+#
+#	Support for a virtual alias domain looks like:
+#
+# .nf
+#	/etc/postfix/main.cf:
+#	    virtual_alias_maps = hash:/etc/postfix/virtual
+# .fi
+#
+#	Note: some systems use \fBdbm\fR databases instead of \fBhash\fR.
+#	See the output from "\fBpostconf -m\fR" for available database types.
+#
+# .nf
+#	/etc/postfix/virtual:
+#	    \fIvirtual-alias.domain	anything\fR (right-hand content does not matter)
+#	    \fIpostmaster@virtual-alias.domain	postmaster\fR
+#	    \fIuser1@virtual-alias.domain	address1\fR
+#	    \fIuser2@virtual-alias.domain	address2, address3\fR
+# .fi
+# .sp
+#	The \fIvirtual-alias.domain anything\fR entry is required for a
+#	virtual alias domain. \fBWithout this entry, mail is rejected
+#	with "relay access denied", or bounces with 
+#	"mail loops back to myself".\fR
+#
+#	Do not specify virtual alias domain names in the \fBmain.cf
+#	mydestination\fR or \fBrelay_domains\fR configuration parameters.
+#
+#	With a virtual alias domain, the Postfix SMTP server
+#	accepts mail for \fIknown-user@virtual-alias.domain\fR, and rejects
+#	mail for \fIunknown-user\fR@\fIvirtual-alias.domain\fR as undeliverable.
+#
+#	Instead of specifying the virtual alias domain name via
+#	the \fBvirtual_alias_maps\fR table, you may also specify it via
+#	the \fBmain.cf virtual_alias_domains\fR configuration parameter.
+#	This latter parameter uses the same syntax as the \fBmain.cf
+#	mydestination\fR configuration parameter.
+# REGULAR EXPRESSION TABLES
+# .ad
+# .fi
+#	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 \fBregexp_table\fR(5)
+#	or \fBpcre_table\fR(5).
+#
+#	Each pattern is a regular expression that is applied to the entire
+#	address being looked up. Thus, \fIuser@domain\fR mail addresses are not
+#	broken up into their \fIuser\fR and \fI@domain\fR constituent parts,
+#	nor is \fIuser+foo\fR broken up into \fIuser\fR and \fIfoo\fR.
+#
+#	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 parenthesized substrings from the
+#	pattern can be interpolated as \fB$1\fR, \fB$2\fR and so on.
+# TCP-BASED TABLES
+# .ad
+# .fi
+#	This section describes how the table lookups change when lookups
+#	are directed to a TCP-based server. For a description of the TCP
+#	client/server lookup protocol, see \fBtcp_table\fR(5).
+#	This feature is available in Postfix 2.5 and later.
+#
+#	Each lookup operation uses the entire address once.  Thus,
+#	\fIuser@domain\fR mail addresses are not broken up into their
+#	\fIuser\fR and \fI@domain\fR constituent parts, nor is
+#	\fIuser+foo\fR broken up into \fIuser\fR and \fIfoo\fR.
+#
+#	Results are the same as with indexed file lookups.
+# BUGS
+#	The table format does not understand quoting conventions.
+# CONFIGURATION PARAMETERS
+# .ad
+# .fi
+#	The following \fBmain.cf\fR parameters are especially relevant to
+#	this topic. See the Postfix \fBmain.cf\fR file for syntax details
+#	and for default values. Use the "\fBpostfix reload\fR" command after
+#	a configuration change.
+# .IP "\fBvirtual_alias_maps ($virtual_maps)\fR"
+#	Optional lookup tables that alias specific mail addresses or domains
+#	to other local or remote addresses.
+# .IP "\fBvirtual_alias_domains ($virtual_alias_maps)\fR"
+#	Postfix is the final destination for the specified list of virtual
+#	alias domains, that is, domains for which all addresses are aliased
+#	to addresses in other local or remote domains.
+# .IP "\fBpropagate_unmatched_extensions (canonical, virtual)\fR"
+#	What address lookup tables copy an address extension from the lookup
+#	key to the lookup result.
+# .PP
+#	Other parameters of interest:
+# .IP "\fBinet_interfaces (all)\fR"
+#	The network interface addresses that this mail system receives
+#	mail on.
+# .IP "\fBmydestination ($myhostname, localhost.$mydomain, localhost)\fR"
+#	The list of domains that are delivered via the $local_transport
+#	mail delivery transport.
+# .IP "\fBmyorigin ($myhostname)\fR"
+#	The domain name that locally-posted mail appears to come
+#	from, and that locally posted mail is delivered to.
+# .IP "\fBowner_request_special (yes)\fR"
+#	Enable special treatment for owner-\fIlistname\fR entries in the
+#	\fBaliases\fR(5) file, and don't split owner-\fIlistname\fR and
+#	\fIlistname\fR-request address localparts when the recipient_delimiter
+#	is set to "-".
+# .IP "\fBproxy_interfaces (empty)\fR"
+#	The network interface addresses that this mail system receives mail
+#	on by way of a proxy or network address translation unit.
+# 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
+# .ad
+# .fi
+#	Use "\fBpostconf readme_directory\fR" or
+#	"\fBpostconf html_directory\fR" to locate this information.
+# .na
+# .nf
+#	ADDRESS_REWRITING_README, address rewriting guide
+#	DATABASE_README, Postfix lookup table overview
+#	VIRTUAL_README, domain hosting guide
+# LICENSE
+# .ad
+# .fi
+#	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
+#--