=head1 NAME

Mail::Box::Net - handle folders which are stored remote.

=head1 INHERITANCE

 Mail::Box::Net
   is a Mail::Box
   is a Mail::Reporter

 Mail::Box::Net is extended by
   Mail::Box::IMAP4
   Mail::Box::POP3

=head1 SYNOPSIS

 # Do not instantiate this object directly

=head1 DESCRIPTION

At the moment, this object is extended by

=over 4

=item * L<Mail::Box::POP3|Mail::Box::POP3>

Implements the POP3 protocol.

=item * L<Mail::Box::IMAP4|Mail::Box::IMAP4>

Implements the IMAP4 protocol.  B<UNDER DEVELOPMENT>

=back

=head1 OVERLOADED

=over 4

=item overload: B<"">()

See L<Mail::Box/"OVERLOADED">

=item overload: B<@{}>()

See L<Mail::Box/"OVERLOADED">

=item overload: B<cmp>()

See L<Mail::Box/"OVERLOADED">

=back

=head1 METHODS

=head2 Constructors

=over 4

=item Mail::Box::Net-E<gt>B<new>(OPTIONS)

 -Option           --Defined in     --Default
  access             Mail::Box        'r'
  body_delayed_type  Mail::Box        Mail::Message::Body::Delayed
  body_type          Mail::Box        Mail::Message::Body::Lines
  coerce_options     Mail::Box        []
  create             Mail::Box        <false>
  extract            Mail::Box        10240
  field_type         Mail::Box        undef
  fix_headers        Mail::Box        <false>
  folder             Mail::Box        '/'
  folderdir          Mail::Box        <not used>
  head_delayed_type  Mail::Box        Mail::Message::Head::Delayed
  head_type          Mail::Box        Mail::Message::Head::Complete
  keep_dups          Mail::Box        <false>
  lock_file          Mail::Box        undef
  lock_timeout       Mail::Box        1 hour
  lock_type          Mail::Box        'NONE'
  lock_wait          Mail::Box        10 seconds
  locker             Mail::Box        undef
  log                Mail::Reporter   'WARNINGS'
  manager            Mail::Box        undef
  message_type       Mail::Box        Mail::Box::Message
  multipart_type     Mail::Box        Mail::Message::Body::Multipart
  password                            undef
  remove_when_empty  Mail::Box        <false>
  save_on_exit       Mail::Box        <true>
  server_name                         undef
  server_port                         undef
  trace              Mail::Reporter   'WARNINGS'
  trusted            Mail::Box        <false>
  username                            undef

=over 2

=item access => MODE

=item body_delayed_type => CLASS

=item body_type => CLASS|CODE

=item coerce_options => ARRAY

=item create => BOOLEAN

=item extract => INTEGER | CODE | METHOD | 'LAZY'|'ALWAYS'

=item field_type => CLASS

=item fix_headers => BOOLEAN

=item folder => FOLDERNAME

=item folderdir => DIRECTORY

=item head_delayed_type => CLASS

=item head_type => CLASS

=item keep_dups => BOOLEAN

=item lock_file => FILENAME

=item lock_timeout => SECONDS

=item lock_type => CLASS|STRING|ARRAY

=item lock_wait => SECONDS

=item locker => OBJECT

=item log => LEVEL

=item manager => MANAGER

=item message_type => CLASS

=item multipart_type => CLASS

=item password => STRING

The password which is required to contact the remote server.

=item remove_when_empty => BOOLEAN

=item save_on_exit => BOOLEAN

=item server_name => HOSTNAME

The name of the host which contains the remote mail server.

=item server_port => INTEGER

Port number in use by the server application.

=item trace => LEVEL

=item trusted => BOOLEAN

=item username => STRING

The username which is to be used for the remote server.

=back

=back

=head2 The folder

=over 4

=item $obj-E<gt>B<addMessage>(MESSAGE, OPTIONS)

See L<Mail::Box/"The folder">

=item $obj-E<gt>B<addMessages>(MESSAGE [, MESSAGE, ...])

See L<Mail::Box/"The folder">

=item Mail::Box::Net-E<gt>B<appendMessages>(OPTIONS)

See L<Mail::Box/"The folder">

=item $obj-E<gt>B<close>(OPTIONS)

See L<Mail::Box/"The folder">

=item $obj-E<gt>B<copyTo>(FOLDER, OPTIONS)

See L<Mail::Box/"The folder">

=item $obj-E<gt>B<delete>(OPTIONS)

See L<Mail::Box/"The folder">

=item $obj-E<gt>B<folderdir>([DIRECTORY])

Not applicatable for folders on a remote server, so will always return
the C<undef>.

=item $obj-E<gt>B<name>()

See L<Mail::Box/"The folder">

=item $obj-E<gt>B<organization>()

See L<Mail::Box/"The folder">

=item $obj-E<gt>B<size>()

See L<Mail::Box/"The folder">

=item $obj-E<gt>B<type>()

See L<Mail::Box/"The folder">

=item $obj-E<gt>B<update>(OPTIONS)

See L<Mail::Box/"The folder">

=item $obj-E<gt>B<url>()

See L<Mail::Box/"The folder">

=back

=head2 Folder flags

=over 4

=item $obj-E<gt>B<access>()

See L<Mail::Box/"Folder flags">

=item $obj-E<gt>B<isModified>()

See L<Mail::Box/"Folder flags">

=item $obj-E<gt>B<modified>([BOOLEAN])

See L<Mail::Box/"Folder flags">

=item $obj-E<gt>B<writable>()

See L<Mail::Box/"Folder flags">

=back

=head2 The messages

=over 4

=item $obj-E<gt>B<current>([NUMBER|MESSAGE|MESSAGE-ID])

See L<Mail::Box/"The messages">

=item $obj-E<gt>B<find>(MESSAGE-ID)

See L<Mail::Box/"The messages">

=item $obj-E<gt>B<findFirstLabeled>(LABEL, [BOOLEAN, [ARRAY-OF-MSGS]])

See L<Mail::Box/"The messages">

=item $obj-E<gt>B<message>(INDEX [,MESSAGE])

See L<Mail::Box/"The messages">

=item $obj-E<gt>B<messageId>(MESSAGE-ID [,MESSAGE])

See L<Mail::Box/"The messages">

=item $obj-E<gt>B<messageIds>()

See L<Mail::Box/"The messages">

=item $obj-E<gt>B<messages>(['ALL',RANGE,'ACTIVE','DELETED',LABEL,!LABEL,FILTER])

See L<Mail::Box/"The messages">

=item $obj-E<gt>B<nrMessages>(OPTIONS)

See L<Mail::Box/"The messages">

=item $obj-E<gt>B<scanForMessages>(MESSAGE, MESSAGE-IDS, TIMESPAN, WINDOW)

See L<Mail::Box/"The messages">

=back

=head2 Sub-folders

=over 4

=item $obj-E<gt>B<listSubFolders>(OPTIONS)

=item Mail::Box::Net-E<gt>B<listSubFolders>(OPTIONS)

See L<Mail::Box/"Sub-folders">

=item $obj-E<gt>B<nameOfSubFolder>(SUBNAME, [PARENTNAME])

=item Mail::Box::Net-E<gt>B<nameOfSubFolder>(SUBNAME, [PARENTNAME])

See L<Mail::Box/"Sub-folders">

=item $obj-E<gt>B<openRelatedFolder>(OPTIONS)

See L<Mail::Box/"Sub-folders">

=item $obj-E<gt>B<openSubFolder>(SUBNAME, OPTIONS)

See L<Mail::Box/"Sub-folders">

=item $obj-E<gt>B<topFolderWithMessages>()

=item Mail::Box::Net-E<gt>B<topFolderWithMessages>()

See L<Mail::Box/"Sub-folders">

=back

=head2 Internals

=over 4

=item $obj-E<gt>B<coerce>(MESSAGE, OPTIONS)

See L<Mail::Box/"Internals">

=item $obj-E<gt>B<create>(FOLDER, OPTIONS)

=item Mail::Box::Net-E<gt>B<create>(FOLDER, OPTIONS)

Create a new folder on the remote server.

 -Option   --Defined in--Default
  folderdir  Mail::Box   <not used>

=over 2

=item folderdir => DIRECTORY

=back

=item $obj-E<gt>B<determineBodyType>(MESSAGE, HEAD)

See L<Mail::Box/"Internals">

=item Mail::Box::Net-E<gt>B<foundIn>([FOLDERNAME], OPTIONS)

See L<Mail::Box/"Internals">

=item $obj-E<gt>B<lineSeparator>([STRING|'CR'|'LF'|'CRLF'])

See L<Mail::Box/"Internals">

=item $obj-E<gt>B<locker>()

See L<Mail::Box/"Internals">

=item $obj-E<gt>B<read>(OPTIONS)

See L<Mail::Box/"Internals">

=item $obj-E<gt>B<readMessages>(OPTIONS)

See L<Mail::Box/"Internals">

=item $obj-E<gt>B<storeMessage>(MESSAGE)

See L<Mail::Box/"Internals">

=item $obj-E<gt>B<toBeThreaded>(MESSAGES)

See L<Mail::Box/"Internals">

=item $obj-E<gt>B<toBeUnthreaded>(MESSAGES)

See L<Mail::Box/"Internals">

=item $obj-E<gt>B<updateMessages>(OPTIONS)

See L<Mail::Box/"Internals">

=item $obj-E<gt>B<write>(OPTIONS)

See L<Mail::Box/"Internals">

=item $obj-E<gt>B<writeMessages>(OPTIONS)

See L<Mail::Box/"Internals">

=back

=head2 Other methods

=over 4

=item $obj-E<gt>B<timespan2seconds>(TIME)

=item Mail::Box::Net-E<gt>B<timespan2seconds>(TIME)

See L<Mail::Box/"Other methods">

=back

=head2 Error handling

=over 4

=item $obj-E<gt>B<AUTOLOAD>()

See L<Mail::Reporter/"Error handling">

=item $obj-E<gt>B<addReport>(OBJECT)

See L<Mail::Reporter/"Error handling">

=item $obj-E<gt>B<defaultTrace>([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

=item Mail::Box::Net-E<gt>B<defaultTrace>([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

See L<Mail::Reporter/"Error handling">

=item $obj-E<gt>B<errors>()

See L<Mail::Reporter/"Error handling">

=item $obj-E<gt>B<log>([LEVEL [,STRINGS]])

=item Mail::Box::Net-E<gt>B<log>([LEVEL [,STRINGS]])

See L<Mail::Reporter/"Error handling">

=item $obj-E<gt>B<logPriority>(LEVEL)

=item Mail::Box::Net-E<gt>B<logPriority>(LEVEL)

See L<Mail::Reporter/"Error handling">

=item $obj-E<gt>B<logSettings>()

See L<Mail::Reporter/"Error handling">

=item $obj-E<gt>B<notImplemented>()

See L<Mail::Reporter/"Error handling">

=item $obj-E<gt>B<report>([LEVEL])

See L<Mail::Reporter/"Error handling">

=item $obj-E<gt>B<reportAll>([LEVEL])

See L<Mail::Reporter/"Error handling">

=item $obj-E<gt>B<trace>([LEVEL])

See L<Mail::Reporter/"Error handling">

=item $obj-E<gt>B<warnings>()

See L<Mail::Reporter/"Error handling">

=back

=head2 Cleanup

=over 4

=item $obj-E<gt>B<DESTROY>()

See L<Mail::Box/"Cleanup">

=item $obj-E<gt>B<inGlobalDestruction>()

See L<Mail::Reporter/"Cleanup">

=back

=head1 DIAGNOSTICS

=over 4

=item Warning: Changes not written to read-only folder $self.

You have opened the folder read-only --which is the default set
by L<new(access)|Mail::Box/"Constructors">--, made modifications, and now want to close it.
Set L<close(force)|Mail::Box/"The folder"> if you want to overrule the access mode, or close
the folder with L<close(write)|Mail::Box/"The folder"> set to C<NEVER>.

=item Error: Copying failed for one message.

For some reason, for instance disc full, removed by external process, or
read-protection, it is impossible to copy one of the messages.  Copying will
proceed for the other messages.

=item Error: Destination folder $name is not writable.

The folder where the messages are copied to is not opened with write
access (see L<new(access)|Mail::Box/"Constructors">).  This has no relation with write permission
to the folder which is controled by your operating system.

=item Warning: Different messages with id $msgid

The message id is discovered more than once within the same folder, but the
content of the message seems to be different.  This should not be possible:
each message must be unique.

=item Error: Folder $name is opened read-only

You can not write to this folder unless you have opened the folder to
write or append with L<new(access)|Mail::Box/"Constructors">, or the C<force> option is set true.

=item Error: Folder $name not deleted: not writable.

The folder must be opened with write access via L<new(access)|Mail::Box/"Constructors">, otherwise
removing it will be refused.  So, you may have write-access according to
the operating system, but that will not automatically mean that this
C<delete> method permits you to.  The reverse remark is valid as well.

=item Error: Invalid timespan '$timespan' specified.

The string does not follow the strict rules of the time span syntax which
is permitted as parameter.

=item Warning: Message-id '$msgid' does not contain a domain.

According to the RFCs, message-ids need to contain a unique random part,
then an C<@>, and then a domain name.  This is made to avoid the creation
of two messages with the same id.  The warning emerges when the C<@> is
missing from the string.

=item Error: Package $package does not implement $method.

Fatal error: the specific package (or one of its superclasses) does not
implement this method where it should. This message means that some other
related classes do implement this method however the class at hand does
not.  Probably you should investigate this and probably inform the author
of the package.

=item Error: Unable to create subfolder $name of $folder.

The copy includes the subfolders, but for some reason it was not possible
to copy one of these.  Copying will proceed for all other sub-folders.

=item Error: Writing folder $name failed

For some reason (you probably got more error messages about this problem)
it is impossible to write the folder, although you should because there
were changes made.

=back

=head1 SEE ALSO

This module is part of Mail-Box distribution version 2.106,
built on August 15, 2012. Website: F<http://perl.overmeer.net/mailbox/>

=head1 LICENSE

Copyrights 2001-2012 by [Mark Overmeer]. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
See F<http://www.perl.com/perl/misc/Artistic.html>

