the UI allows the user to delete mailboxes out of the folder list, but there is no provision in the UI (that I can find) for adding mailboxes into the folder list. As a result, my folder list is empty. The most obvious place in the UI where this provision should be would be in the contextual menu that doesn't come up when you right-click inside the folder list. While I'm on here, does anyone know of a mailing list or message board or similar online community for users of claws to help each other out with these sorts of problems?
/File/Add mailbox... For the mailing list, see /Help/About/info, or the website, http://www.claws-mail.org/MLs.php?section=community or the initial message when you first installed Claws Mail.