# phpman > man > Mail::Box::Dir(3pm)

## NAME
    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown) - handle folders with a file per message.

## INHERITANCE
     [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)
       is a [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)
       is a [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

     [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown) is extended by
       [Mail::Box::MH](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3AMH/markdown)
       [Mail::Box::Maildir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3AMaildir/markdown)

## SYNOPSIS
     # Do not instantiate this object

## DESCRIPTION
    This documentation describes the way directory organized mailboxes work. At the moment, this
    object is extended by

    *   [Mail::Box::MH](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3AMH/markdown)

        MH folders, which are represented by a directory containing files which are sequentially
        numbered.

    *   [Mail::Box::Maildir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3AMaildir/markdown)

        Maildir folders, which are located in a directory which has sub-directories named "tmp",
        "new", and "cur". Each of these directories may contain files with names which are a
        combination of a numeric timestamp and some status flags.

    *   [Mail::Box::Netzwert](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ANetzwert/markdown)

        This folder type was especially developed for Netzwert AG, optimized to run on a cluster of
        servers with folders on NFS. The code is not publicly available (yet).

    Extends "DESCRIPTION" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

## OVERLOADED
    Extends "OVERLOADED" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

    overload: ""
        Inherited, see "OVERLOADED" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    overload: @{}
        Inherited, see "OVERLOADED" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    overload: cmp
        Inherited, see "OVERLOADED" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

## METHODS
    Extends "METHODS" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

### Constructors
    Extends "Constructors" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)->new(%options)
         -Option           --Defined in     --Default
          access             [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        'r'
          body_delayed_type  [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        [Mail::Message::Body::Delayed](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3ABody%3A%3ADelayed/markdown)
          body_type          [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        [Mail::Message::Body::Lines](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3ABody%3A%3ALines/markdown)
          coerce_options     [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        []
          create             [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        <false>
          directory                           <derived from folder name>
          extract            [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        10240
          field_type         [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        undef
          fix_headers        [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        <false>
          folder             [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        $ENV{MAIL}
          folderdir          [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        undef
          head_delayed_type  [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        [Mail::Message::Head::Delayed](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AHead%3A%3ADelayed/markdown)
          head_type          [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        [Mail::Message::Head::Complete](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AHead%3A%3AComplete/markdown)
          keep_dups          [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        <false>
          lock_file          [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        <folder>/.lock
          lock_timeout       [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        1 hour
          lock_type          [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        [Mail::Box::Locker::DotLock](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ALocker%3A%3ADotLock/markdown)
          lock_wait          [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        10 seconds
          locker             [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        undef
          log                [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)   'WARNINGS'
          manager            [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        undef
          message_type       [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        <folder-class>::Message
          multipart_type     [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        [Mail::Message::Body::Multipart](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3ABody%3A%3AMultipart/markdown)
          remove_when_empty  [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        <true>
          save_on_exit       [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        <true>
          trace              [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)   'WARNINGS'
          trusted            [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)        <depends on folder location>

        access => MODE
        body_delayed_type => CLASS
        body_type => CLASS|CODE
        coerce_options => ARRAY
        create => BOOLEAN
        directory => DIRECTORY
          For rare folder types, the directory name may differ from the folder name.

        extract => INTEGER | CODE | METHOD | 'LAZY'|'ALWAYS'
        field_type => CLASS
        fix_headers => BOOLEAN
        folder => FOLDERNAME
        folderdir => DIRECTORY
        head_delayed_type => CLASS
        head_type => CLASS
        keep_dups => BOOLEAN
        lock_file => FILENAME
        lock_timeout => SECONDS
        lock_type => CLASS|STRING|ARRAY
        lock_wait => SECONDS
        locker => OBJECT
        log => LEVEL
        manager => MANAGER
        message_type => CLASS
        multipart_type => CLASS
        remove_when_empty => BOOLEAN
        save_on_exit => BOOLEAN
        trace => LEVEL
        trusted => BOOLEAN

### The folder
    Extends "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

    $obj->addMessage($message, %options)
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->addMessages(@messages)
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)->appendMessages(%options)
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->close(%options)
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->copyTo($folder, %options)
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->delete(%options)
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->directory()
        Returns the directory related to this folder.

        example:

         print $folder->directory;

    $obj->folderdir( [$directory] )
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->name()
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->organization()
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->size()
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->type()
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->update(%options)
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->url()
        Inherited, see "The folder" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

### Folder flags
    Extends "Folder flags" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

    $obj->access()
        Inherited, see "Folder flags" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->isModified()
        Inherited, see "Folder flags" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->modified( [BOOLEAN] )
        Inherited, see "Folder flags" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->writable()
        Inherited, see "Folder flags" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

### The messages
    Extends "The messages" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

    $obj->current( [$number|$message|$message_id] )
        Inherited, see "The messages" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->find($message_id)
        Inherited, see "The messages" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->findFirstLabeled( $label, [BOOLEAN, [$msgs]] )
        Inherited, see "The messages" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->message( $index, [$message] )
        Inherited, see "The messages" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->messageId( $message_id, [$message] )
        Inherited, see "The messages" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->messageIds()
        Inherited, see "The messages" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->messages( <'ALL'|$range|'ACTIVE'|'DELETED'|$label| !$label|$filter> )
        Inherited, see "The messages" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->nrMessages(%options)
        Inherited, see "The messages" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->scanForMessages($message, $message_ids, $timespan, $window)
        Inherited, see "The messages" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

### Sub-folders
    Extends "Sub-folders" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

    $obj->listSubFolders(%options)
    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)->listSubFolders(%options)
        Inherited, see "Sub-folders" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->nameOfSubFolder( $subname, [$parentname] )
    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)->nameOfSubFolder( $subname, [$parentname] )
        Inherited, see "Sub-folders" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->openRelatedFolder(%options)
        Inherited, see "Sub-folders" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->openSubFolder($subname, %options)
        Inherited, see "Sub-folders" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->topFolderWithMessages()
    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)->topFolderWithMessages()
        Inherited, see "Sub-folders" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

### Internals
    Extends "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

    $obj->coerce($message, %options)
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->create($foldername, %options)
    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)->create($foldername, %options)
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->determineBodyType($message, $head)
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->folderToDirectory($foldername, $folderdir)
        (class method) Translate a foldername into a filename, with use of the $folderdir to replace
        a leading "=".

    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)->foundIn( [$foldername], %options )
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->lineSeparator( [<STRING|'CR'|'LF'|'CRLF'>] )
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->locker()
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->messageInFile($filename)
        Returns the folder message which is found the indicated "filename". This may be useful when
        some external tool reports filename to be opened.

    $obj->read(%options)
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->readMessageFilenames($directory)
        Returns a list of all filenames which are found in this folder directory and represent a
        message. The filenames are returned as relative path.

    $obj->readMessages(%options)
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->storeMessage($message)
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->toBeThreaded($messages)
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->toBeUnthreaded($messages)
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->updateMessages(%options)
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->write(%options)
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

    $obj->writeMessages(%options)
        Inherited, see "Internals" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

### Other methods
    Extends "Other methods" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

    $obj->timespan2seconds($time)
    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)->timespan2seconds($time)
        Inherited, see "Other methods" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

### Error handling
    Extends "Error handling" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

    $obj->AUTOLOAD()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->addReport($object)
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level, $callback] )
    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level, $callback] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->errors()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->log( [$level, [$strings]] )
    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)->log( [$level, [$strings]] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->logPriority($level)
    [Mail::Box::Dir](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox%3A%3ADir/markdown)->logPriority($level)
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->logSettings()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->notImplemented()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->report( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->reportAll( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->trace( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->warnings()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

### Cleanup
    Extends "Cleanup" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

    $obj->DESTROY()
        Inherited, see "Cleanup" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)

## DETAILS
    Extends "DETAILS" in [Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown).

## DIAGNOSTICS
    Warning: Changes not written to read-only folder $self.
        You have opened the folder read-only --which is the default set by new(access)--, made
        modifications, and now want to close it. Set close(force) if you want to overrule the access
        mode, or close the folder with close(write) set to "NEVER".

    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.

    Error: Destination folder $name is not writable.
        The folder where the messages are copied to is not opened with write access (see
        new(access)). This has no relation with write permission to the folder which is controlled
        by your operating system.

    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.

    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
        new(access), or the "force" option is set true.

    Error: Folder $name not deleted: not writable.
        The folder must be opened with write access via new(access), 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 "delete" method permits you to. The reverse remark is valid as
        well.

    Warning: Folder directory $directory is write-protected.
        The folder directory does already exist and is write protected, which may interfere with the
        requested write access. Change new(access) or the permissions on the directory.

    Error: Invalid timespan '$timespan' specified.
        The string does not follow the strict rules of the time span syntax which is permitted as
        parameter.

    Warning: Message-id '$msgid' does not contain a domain.
        According to the RFCs, message-ids need to contain a unique random part, then an "@", and
        then a domain name. This is made to avoid the creation of two messages with the same id. The
        warning emerges when the "@" is missing from the string.

    Warning: No directory $name for folder of $class
    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.

    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.

    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.

## SEE ALSO
    This module is part of Mail-Box distribution version 3.009, built on August 18, 2020. Website:
    <http://perl.overmeer.net/CPAN/>

## LICENSE
    Copyrights 2001-2020 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 <http://dev.perl.org/licenses/>