Adding upstream version 3.4.23.upstream/3.4.23upstream

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

1 files changed, 273 insertions, 0 deletions

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+#++
+# NAME
+#	canonical 5
+# SUMMARY
+#	Postfix canonical table format
+# SYNOPSIS
+#	\fBpostmap /etc/postfix/canonical\fR
+#
+#	\fBpostmap -q "\fIstring\fB" /etc/postfix/canonical\fR
+#
+#	\fBpostmap -q - /etc/postfix/canonical <\fIinputfile\fR
+# DESCRIPTION
+#	The optional \fBcanonical\fR(5) table specifies an address mapping for
+#	local and non-local addresses. The mapping is used by the
+#	\fBcleanup\fR(8) daemon, before mail is stored into the
+#	queue.  The address mapping is recursive.
+#
+#	Normally, the \fBcanonical\fR(5) 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/canonical\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 TCP-based server. In those cases, the lookups
+#	are done in a slightly different way as described below under
+#	"REGULAR EXPRESSION TABLES" or "TCP-BASED TABLES".
+#
+#	By default the \fBcanonical\fR(5) mapping affects both message
+#	header addresses (i.e. addresses that appear inside messages)
+#	and message envelope addresses (for example, the addresses
+#	that are used in SMTP protocol commands). This is controlled with
+#	the \fBcanonical_classes\fR parameter.
+#
+#	NOTE: Postfix versions 2.2 and later rewrite message headers
+#	from remote SMTP clients only if the client matches the
+#	local_header_rewrite_clients parameter, or if the
+#	remote_header_rewrite_domain configuration parameter specifies
+#	a non-empty value. To get the behavior before Postfix 2.2,
+#	specify "local_header_rewrite_clients = static:all".
+#
+#	Typically, one would use the \fBcanonical\fR(5) table to replace login
+#	names by \fIFirstname.Lastname\fR, or to clean up addresses produced
+#	by legacy mail systems.
+#
+#	The \fBcanonical\fR(5) mapping is not to be confused with \fIvirtual
+#	alias\fR support or with local aliasing. To change the destination
+#	but not the headers, use the \fBvirtual\fR(5) or \fBaliases\fR(5)
+#	map instead.
+# 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\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\fR"
+#	Replace \fIuser\fR@\fIdomain\fR by \fIaddress\fR. This form
+#	has the highest precedence.
+#	.sp
+#	This is useful to clean up addresses produced by legacy mail systems.
+#	It can also be used to produce \fIFirstname.Lastname\fR style
+#	addresses, but see below for a simpler solution.
+# .IP "\fIuser address\fR"
+#	Replace \fIuser\fR@\fIsite\fR by \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 form is useful for replacing login names by
+#	\fIFirstname.Lastname\fR.
+# .IP "@\fIdomain address\fR"
+#	Replace other addresses in \fIdomain\fR by \fIaddress\fR.
+#	This form has the lowest precedence.
+# .sp
+#	Note: @\fIdomain\fR is a wild-card. When this form is applied
+#	to recipient addresses, 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 rewritten 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.
+# .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 table lookup.
+# 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 not available up to and including Postfix version 2.4.
+#	
+#	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.  
+#	The text below provides only a parameter summary. See
+#	\fBpostconf\fR(5) for more details including examples.
+# .IP "\fBcanonical_classes (envelope_sender, envelope_recipient, header_sender, header_recipient)\fR"
+#	What addresses are subject to canonical_maps address mapping.
+# .IP "\fBcanonical_maps (empty)\fR"
+#	Optional address mapping lookup tables for message headers and
+#	envelopes.
+# .IP "\fBrecipient_canonical_maps (empty)\fR"
+#	Optional address mapping lookup tables for envelope and header
+#	recipient addresses.
+# .IP "\fBsender_canonical_maps (empty)\fR"
+#	Optional address mapping lookup tables for envelope and header
+#	sender addresses.
+# .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 "\fBlocal_header_rewrite_clients (permit_inet_interfaces)\fR"
+#	Rewrite message header addresses in mail from these clients and
+#	update incomplete addresses with the domain name in $myorigin or
+#	$mydomain; either don't rewrite message headers from other clients
+#	at all, or rewrite message headers and update incomplete addresses
+#	with the domain specified in the remote_header_rewrite_domain
+#	parameter.
+# .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.
+# .IP "\fBmasquerade_classes (envelope_sender, header_sender, header_recipient)\fR"
+#	What addresses are subject to address masquerading.
+# .IP "\fBmasquerade_domains (empty)\fR"
+#	Optional list of domains whose subdomain structure will be stripped
+#	off in email addresses.
+# .IP "\fBmasquerade_exceptions (empty)\fR"
+#	Optional list of user names that are not subjected to address
+#	masquerading, even when their address matches $masquerade_domains.
+# .IP "\fBmydestination ($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 "\fBremote_header_rewrite_domain (empty)\fR"
+#	Don't rewrite message headers from remote clients at all when
+#	this parameter is empty; otherwise, rewrite message headers and
+#	append the specified domain name to incomplete addresses.
+# SEE ALSO
+#	cleanup(8), canonicalize and enqueue mail
+#	postmap(1), Postfix lookup table manager
+#	postconf(5), configuration parameters
+#	virtual(5), virtual aliasing
+# README FILES
+# .ad
+# .fi
+#	Use "\fBpostconf readme_directory\fR" or
+#	"\fBpostconf html_directory\fR" to locate this information.
+# .na
+# .nf
+#	DATABASE_README, Postfix lookup table overview
+#	ADDRESS_REWRITING_README, address rewriting 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
+#--