This is a provider for the UNIX `mbox` mailbox file format, used by many 3rd-party MUAs including Netscape, Mozilla, mutt, elm, and pine.

Further information about the format of an mbox mailbox is available here.

This provider supports the following properties:

Name | Type | Description
--- | --- | ---
mail.mbox.mailhome | directory path | The path to a directory that holds mbox mailboxes and/or directories. Such files and directories will be exposed as mail folders by the provider.
mail.mbox.inbox | file path | The path to a file which should be considered to be the primary inbox (equivalent to the MAIL environment variable). Requests for "INBOX" will return this file as a Folder. If not set, and the attemptfallback property is set to true (see below), `/var/mail/${user.name}`, `/var/spool/mail/${user.name}`, and `${user.home}/Mailbox` will be attempted, in that order.
mail.mbox.attemptfallback | boolean | Whether to try to locate the mail spool in some common (UNIX) locations.