I have a user here that has about 250,000 emails that are currently in Windows Live Mail. WLM is running extremely slow (for obvious reasons) and I am thinking the best way may be to move him completely to Google Apps for email. He currently has an apps account, but moves emails from the Google IMAP account to a local folder in WLM. I am thinking the best way to get rid of WLM would be to move all local folders and emails back up to Google. Is this a good idea, and if so what would be the best way to move his local folders and messages? In the past I have simply create the folder structure in GA mail then moved chunks of messages at a time up to the IMAP folder. With this quantity of folders and messages I'm afraid that may be a very time consuming task. Is there an automated way to do this and to ensure that every email gets uploaded?