As soon as the update to 4.0.0 which was released a few days ago, everything appeared normal. Yesterday (Monday) I checked my work emails through Outlook 2010, I'm receiving emails fine, but when I replied, I have noticed that all outgoing emails are sitting in my outbox and when I click send/receive and bring up the progress bar, nothing is sending. I updated to 4.0.2 today, and still no success at sending emails through Outlook 2010. Does anybody have a fix?