I am designing a web application(ASP.Net) that should read all mails in GMail and create a PST . My first roadblock is how to read all (read and unread) mails. I know, there is an atom feed that will read all the unread mails. Similarly do we have any atom feed or an API that will read all mails of GMail.
I am stuck up in this for a long time. Any help/advice is greatly appreciated.