Disconnected IMAP, possible?

[Fraser Campbell <fraser@wehave.net>]

Hi,

Are there email clients in Windows that will support disconnected IMAP 
operation?

Basically our client would like to use IMAP for all of it's advantages but 
they'd also like to have messages cached on the local machine so that in 
disconnected situations they can still read/search their email.

I'd always thought this was possible but so far I haven't found the options to 
enable it, mail seems only to be available while connected to the server.

Do other clients (Eudora, Outlook, Netscape, ???) support a feature such as 
this?

Thanks
-- 
Fraser Campbell <fraser@wehave.net>                     http://wehave.net/
Brampton, Ontario, Canada                        Linux 2.4.20 AuthenticAMD