Hi and thanks in advance - I have Microsoft Outlook 2007, Vista, Windows 7. And a new Dell. Outlook is not sending ALL of my emails. This just started. It sends some, not all. I reinstalled Outlook, deleted then added again my email server info (Comcast). If I test my settings, the test email goes through. But if I email someone directly, chances are it doesn't go through - but it might. It is inconsistent which is the most frustrating part of this. I email myself on Comcast and Hotmail - it's hit or miss. Anyone?