I have always used pop3, but as I more than earlier need to access my mail from various locations, I've tried to use IMAP. It works OK, but I have a problem with my "Sent Mail" folder - it's only a local folder, not an IMAP folder. How can I change that? I mean, my sent mails are just as important to have on the server as my inbox! Besides that - I love IMAP
Ok, the problem might be that by default your are not allowed to create folders, only subfolders. So if you specify INBOX.sent this might solve your problem. http://www.courier-mta.org/FAQ.html#namespace
I don't use courier anymore, but if I remember correctly there was a path in order to modify this behavior. But this means you have to recompile by hand.