Need outlook like imap functionality

Hi, I have seen your samples, they always go to the server to fetch email when I click on a mail folder. Is there a Method to cache the messages locally and fetch only the new messages, and remove the messages from cache which have been deleted on the server.

Hello,

To find new message only, you can call ListMessages(). We have been improving the sample, so that it can download messages to a user"s folder and next time just downloads new messages only.