doc/man1/list-remote-forwards.1

   1 .TH list-remote-forwards 1
   2
   3 .SH NAME
   4 list\-remote\-forwards \- List all remote forwards for mail accounts stored in
   5 a SQL database
   6 .SH SYNOPSIS
   7
   8 \fBlist-remote-forwards\fR [\fIOPTIONS\fR]
   9 .SH INPUT
  10 .P
  11 None.
  12 .SH OUTPUT
  13 .P
  14 A list of addresses that are forwarded to remote domains.
  15 .SH DESCRIPTION
  16 .P
  17 A list of local domains is supplied to the program (more or less)
  18 through the \fI\-\-domain\-query\fR option. Any addresses which
  19 forward to another address not contained in this list of local domains
  20 is considered a remote forward. Remote forwards can cause problems for
  21 a number of reasons, the most common of which are,
  22 .IP \(bu 2
  23 If the sender has an SPF record authorizing his mail server to send
  24 mail on his behalf, then when his message is forwarded by the
  25 recipient's mail server, it will fail any subsequent SPF checks. This
  26 will likely cause the message to be rejected, and the original
  27 recipient's server will generate backscatter.
  28 .IP \(bu
  29 If any spam makes it through the filter on the recipient's mail
  30 server, that spam will then be forwarded to a remote destination. The
  31 remote destination will blame the forwarding server for the spam, and
  32 that can impact its reputation and potentially lead to a blacklisting
  33 even though the spam did not originate on the recipient's server.
  34 .P
  35 Whether or not these are an issue depends on the circumstances, but in
  36 any case it is useful to know who is forwarding mail off-site.
  37 .SH OPTIONS
  38
  39 .IP \fB\-\-database\fR
  40 The name of the database (or file, if SQLite) to which we should
  41 connect.
  42
  43 Default: The name of the current user (Postgres only).
  44
  45 .IP \fB\-\-domain-query\fR
  46 SQL query used to produce a list of local domains. This should return
  47 the set of all domains (i.e one column) that are local to the
  48 server. See the default value for an example.
  49
  50 Default: \(dqSELECT domain FROM domain WHERE domain <> 'ALL' ORDER BY domain;\(dq
  51
  52 .IP \fB\-\-forward-query\fR
  53 SQL query used to produce a list of all forwards on the mail
  54 system. This query should return the set of all (address, goto)
  55 triples, where \(dqgoto\(dq is the destination address; i.e. to where
  56 the \(dqaddress\(dq forwards. The \(dqgoto\(dq field may contain more
  57 than one email address, separated by commas.
  58
  59 Default: \(dqSELECT address,goto FROM alias ORDER BY address;\(dq
  60
  61 .IP \fB\-\-host\fR
  62 Hostname where the database is located (Postgres-only).
  63
  64 Default: None, a UNIX domain socket connection is attempted (Postgres only)
  65
  66 .IP \fB\-\-password\fR
  67 Password used to connect to the database (Postgres-only).
  68
  69 Default: None (assumes passwordless authentication)
  70
  71 .IP \fB\-\-port\fR
  72 Port number used to connect to the database (Postgres-only).
  73
  74 Default: None, a UNIX domain socket connection is attempted (Postgres only)
  75
  76 .IP \fB\-\-username\fR
  77 Username used to connect to the database (Postgres-only).
  78
  79 Default: The current user
  80
  81 .SH EXAMPLES
  82
  83 .nf
  84 .I $ list-remote-forwards --database=postfixadmin.sqlite3
  85 user1@example.com -> user1@example.net
  86 user2@example.com -> user1@example.org
  87 user2@example.com -> user2@example.org
  88 user2@example.com -> user3@example.org
  89 .fi
  90 .SH BUGS
  91 .P
  92 Send bugs to michael@orlitzky.com.