We are already having problems with Outlook 2010. Our personal accounts with GMail and BT Internet are fine but we are unable to send emails from our business account <firstname.lastname@example.org>. It appears to be receiving Emails but if we try to send we get errors that the servers don't support the authentication methods used or some such nonsense. All works fine in Thunderbird. But my work mate spent nearly 4 hours yesterday afternoon tinkering with just about every setting he could find, all to no avail. This is annoying as we were hoping to migrate of our activities to Outlook but can't until we ccan sort this. Any ideas or similar probs out there?