I'm trying to make a Silverlight email client. Since there's no direct IMAP connection possible from silverlight, I've wrapped the email objects in objects. Attachments are the biggest challenge.
One thing I'm considering is having my silverlight application launch a browser window, specifying a message id and attachment, and trying to just kick in the standard browser download functionality.
Has anyone else written any asp.net email clients with these tools, or know what exactly I'd need to write?