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143 lines
4.1 KiB
143 lines
4.1 KiB
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
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<pkgmetadata>
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<maintainer type="person">
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<email>mjo@gentoo.org</email>
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<name>Michael Orlitzky</name>
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</maintainer>
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<maintainer type="project">
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<email>haskell@gentoo.org</email>
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<name>Gentoo Haskell</name>
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</maintainer>
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<longdescription>
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/Usage/:
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@
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list-remote-forwards [OPTIONS]
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@
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List all remote forwards for mail accounts stored in a SQL database.
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A list of local domains is supplied to the program (more or less)
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through the @--domain-query@ option. Any addresses which
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forward to another address not contained in this list of local domains
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is considered a remote forward. Remote forwards can cause problems for
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a number of reasons, the most common of which are,
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* If the sender has an SPF record authorizing his mail server to send
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mail on his behalf, then when his message is forwarded by the
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recipient's mail server, it will fail any subsequent SPF checks. This
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will likely cause the message to be rejected, and the original
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recipient's server will generate backscatter.
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* If any spam makes it through the filter on the recipient's mail
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server, that spam will then be forwarded to a remote destination. The
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remote destination will blame the forwarding server for the spam, and
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that can impact its reputation and potentially lead to a blacklisting
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even though the spam did not originate on the recipient's server.
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Whether or not these are an issue depends on the circumstances, but in
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any case it is useful to know who is forwarding mail off-site.
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/Input:/
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None.
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/Output:/
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A list of addresses that are forwarded to remote domains.
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/Options/:
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@
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\--database
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@
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The name of the database (or file, if SQLite) to which we should
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connect.
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Default: The name of the current user (Postgres only).
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@
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\--domain-query
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@
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SQL query used to produce a list of local domains. This should return
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the set of all domains (i.e one column) that are local to the
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server. See the default value for an example.
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Default: \"SELECT domain FROM domain WHERE domain <> 'ALL' ORDER BY domain;\"
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@
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\--exclude-mx, -e
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@
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The name of a mail exchanger, the forwards of whose domains we should
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ignore. For example, if one mail exchanger, mx1.example.com, has
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strict spam filtering, it may be acceptable to have remote forwarding
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for domains that have mx1.example.com as their sole mail exchanger (MX
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record). In that case, you might want to exclude those domains from
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the report by naming mx1.example.com here.
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A forward will be excluded from the report only if /all/ of its MX
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records are contained in the given exclude list.
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This option can be repeated to add mail exchangers to the exclude list.
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Default: [] (empty)
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@
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\--forward-query, -f
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@
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SQL query used to produce a list of all forwards on the mail
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system. This query should return the set of all (address, goto)
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triples, where \"goto\" is the destination address; i.e. to where
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the \"address\" forwards. The \"goto\" field may contain more
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than one email address, separated by commas.
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Default: \"SELECT address,goto FROM alias ORDER BY address;\"
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@
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\--host, -h
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@
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Hostname where the database is located (Postgres-only).
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Default: None, a UNIX domain socket connection is attempted (Postgres only)
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@
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\--password
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@
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Password used to connect to the database (Postgres-only).
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Default: None (assumes passwordless authentication)
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@
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\--port
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@
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Port number used to connect to the database (Postgres-only).
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Default: None, a UNIX domain socket connection is attempted (Postgres only)
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@
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\--username, -u
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@
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Username used to connect to the database (Postgres-only).
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Default: The current user
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/Examples/:
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@
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$ list-remote-forwards --database=test/fixtures/postfixadmin.sqlite3
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user1@example.com -> user1@example.net
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user2@example.com -> user1@example.org
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user2@example.com -> user2@example.org
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user2@example.com -> user3@example.org
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user7@example.com -> user8@example.net
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@
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</longdescription>
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</pkgmetadata>
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