pigeonhole

       Dovecot secure IMAP and POP3 server

DESCRIPTION
       The Pigeonhole project <http://pigeonhole.dovecot.org> adds support for
       the  Sieve  language (RFC 5228) and the ManageSieve protocol (RFC 5804)
       to the Dovecot Secure IMAP and POP3 Server (dovecot(1)). In the literal
       sense,  a pigeonhole is a a hole or recess inside a dovecot for pigeons
       to nest in.  It is, however, also the name  for  one  of  a  series  of
       small,  open compartments in a cabinet used for filing or sorting mail.
       As a verb, it describes the act of putting an item into  one  of  those
       pigeonholes.  The  name "Pigeonhole" therefore well describes an impor-
       tant part of the functionality that this project adds to Dovecot: sort-
       ing and filing e-mail messages.

       The Sieve language is used to specify how e-mail needs to be processed.
       By writing Sieve scripts, users can customize how messages  are  deliv-
       ered,  e.g.   whether  they are forwarded or stored in special folders.
       Unwanted messages can be discarded or rejected, and, when the  user  is
       not available, the Sieve interpreter can send an automated reply. Above
       all, the Sieve language is meant to be simple,  extensible  and  system
       independent. And, unlike most other mail filtering script languages, it
       does not allow users to execute arbitrary programs.  This  is  particu-
       larly  useful  to  prevent virtual users from having full access to the
       mail store. The intention of the language is to make it impossible  for
       users  to  do  anything  more complex (and dangerous) than write simple
       mail filters.

       Using the ManageSieve protocol, users can upload  their  Sieve  scripts
       remotely,  without needing direct filesystem access through FTP or SCP.
       Additionally, a ManageSieve server  always  makes  sure  that  uploaded
       scripts are valid, preventing compile failures at mail delivery.

       The Pigeonhole project provides the following items:

       o   The  LDA  Sieve  plugin  for  Dovecot's  Local Delivery Agent (LDA)
           (dovecot-lda(1)) that facilitates the actual Sieve  filtering  upon
           delivery.

       o   The  ManageSieve  Service  that implements the ManageSieve protocol
           through which users  can  remotely  manage  Sieve  scripts  on  the
           server.

       o   Command line tools that provide the means to manually compile, ana-
           lyse and test Sieve scripts.

       The functionality and configuration of the LDA  Sieve  plugin  and  the
       ManageSieve  service  is  described in detail in the README and INSTALL
       files contained in the Pigeonhole  package  and  in  the  Dovecot  Wiki
       <http://wiki2.dovecot.org/Pigeonhole>.

       The following command line tools are available:

       sievec(1)
              Compiles  Sieve  scripts  into a binary representation for later

       <dovecot@dovecot.org>.  Information about reporting Dovecot and Pigeon-
       hole bugs is available at: http://dovecot.org/bugreport.html

AUTHOR
       Pigeonhole <http://pigeonhole.dovecot.org> and its  manual  pages  were
       written    by    the    Pigeonhole   authors   <http://pigeonhole.dove-
       cot.org/doc/AUTHORS>, mainly Stephan Bosch <stephan  at  rename-it.nl>,
       and  are licensed under the terms of the LGPLv2.1 license, which is the
       same  license  as  Dovecot,  see  <http://dovecot.org/doc/COPYING>  for
       details.

SEE ALSO
       dovecot(1), dovecot-lda(1), sieve-dump(1), sieve-test(1), sievec(1)

       Additional resources:

       Dovecot website
              http://www.dovecot.org

       Dovecot v2.0 Wiki
              http://wiki2.dovecot.org/Pigeonhole

       Pigeonhole website
              http://pigeonhole.dovecot.org



Pigeonhole for Dovecot v2.0       2012-01-07                     PIGEONHOLE(7)
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