[fdo] Re: Mail storage / maildir extensions

[Alan Jenkins]

> There are standards already - mbox, MH and maildir - which specify a way
> to store multiple emails in the same place, but they do not categorize them
> as mail clients do - into inbox/recieved mail, outbox/unsent mail, sent
> mail, and user created directories and sub-directories.
>
> I ask for comment: do you think that a method of categorizing mail could be
> standardized upon?

For an example of a mail client which does something completely different, see 
balsa.  Balsa manages all mailbox files/directories explicitly - no 
subdirectory support - which makes it a very convenient mailbox format 
converter, but slightly harder to categorize your mail.