As anybody experience problem using ESP (medusa) tool? (http://www.microsoft.com/downloads/details.aspx? familyid=773ae7fd-860f-4755-b04d-1972e38fa4db&displaylang=en) I manage to run some tests, connect to the server, read the mailboxes, move messages from Inbox to Delete folder, ... but for all the 'POST' commands (sending mail or creating appointment), I get no result in Outlook, despite the fact that I get a status OK in log files! Help would be very appreciated, as I've already spent a lot of time on this! Thanks in advance Raphael GONZALEZ