Indicates if a folder is currently selected in the mail account.
true if a folder has already been selected; otherwise, false.
Many methods of the Imap component require a folder be selected in order to perform successfully. To select a folder, the developer can use SelectFolder or ExamineFolder methods. An IMAP4 mail account is guaranteed to contain at least "Inbox" folder.
Imap Class | MailBee.ImapMail Namespace