I-D ACTION:draft-gahrns-imap-child-mailbox-02.txt

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	Title		: IMAP4 Child Mailbox Extension
	Author(s)	: M. Gahrns, R. Cheng
	Filename	: draft-gahrns-imap-child-mailbox-02.txt
	Pages		: 7
	Date		: 14-Dec-99
	
Many IMAP4 [RFC-2060] clients present to the user a hierarchical
view of the mailboxes that a user has access to.  Rather than
initially presenting to the user the entire mailbox hierarchy, it is
often preferable to show to the user a collapsed outline list of the
mailbox hierarchy (particularly if there is a large number of
mailboxes).  The user can then expand the collapsed outline
hierarchy as needed.  It is common to include within the collapsed
hierarchy a visual clue (such as a ''+'') to indicate that there are
child mailboxes under a particular mailbox.   When the visual clue
is clicked the hierarchy list is expanded to show the child
mailboxes.
 
The CHILDREN extension provides a mechanism for a client to
efficiently determine if a particular mailbox has children, without
issuing a LIST '' * or a LIST '' % for each mailbox name.

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