is disconnected imap mandatory?

[Richard Bos]

n Friday 12 August 2005 09:44, Andreas Gungl wrote:
> > Disconnected imap shouldn't slow down the computer before online imap get
> > superfluous. Dimap is nearly unusable in a LAN environment where you want
> > you client to check for mail every 5 minutes. I heard it's better on
> > (slow) dialup connections (never tried).
>
> You can select a folder and press F5 to sync' only that single folder.
> Ctrl+L sync's all folders, which can take a bit longer.
>
> Another proposal (may have been mentioned on this list already):
> Define two accounts - one online IMAP and one offline IMAP.
>
> Subscribe the resource folders and show only subscribed folders in offline
> IMAP. That's the Kolab resource management part. You can have automatic
> mail checks every five minutes for that account.
> Use the other account with online IMAP for your mail folders as usual.

That is trivial for us, but for an ordinary email user that is not
trivial at all.  Would it be possible to determine on folder basis
to have dimap or just imap?  Or would that be almost impossible to setup and 
develop?

--
Richard