I have an exchange 2007 Server and i need to be able to move all the emails from the 7 clients to a hosted solution I am currently using rackespace email formerly mailtrust.com
right now the server is using popcon to control the server and send the emails from the pop server. and its causing many issues. so i want to get rid of exchange it is not needed but I can not lose all the emails that are stored on this server the users need them to be on their outlook client.
What is the best option to get this accomplished.