SPECIAL-USE again

[Peter Mogensen]

Hi,

Great to see Thunderbird support SPECIAL-USE now.

I would like to hear the list about the intended use of SPECIAL-USE.

I get the impression from several earlier mails here that the intention 
is for the server to globally decide what the folder-name of a specific 
SPECIAL-USE folder is for all users.
That's the way the documentation exemplifies it and what I get from 
posts like this:
http://www.dovecot.org/list/dovecot/2013-February/088129.html

I get the point that if *all* clients ignored the real folder-name and 
only obeyed SPECIAL-USE, the clients could locally in the GUI decide 
language and name of the \Sent, \Drafts, \Trash folders.
And the real folder name would become just an opaque identifier.

However that's not how the world is like. There are plenty of clients 
ignoring SPECIAL-USE and placing meaning in the actual folder name in a 
language of their own choice.

It seems natural for me to let the user configure their own individual 
SPECIAL-USE tagging according to their language and/or mix of IMAP clients.
  - either by setting IMAP METADATA (RFC5464) or by having the userdb 
return entries like: "namespace/inbox/Papperskorg/specialuse=\Trash"
(for a swede)

/Peter

PS: Also... Isn't there a need for a Sieve extension to allow "fileinto" 
to target a folder based on special-use ?