Outlook not sending all of my emails

[jamesdever]

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?

 

[jamesdever]

Also, also...when reinstalled Outlook, or deleted then reentered my email server info, all of my emails went through fine...for about 20 seconds. Then, same thing.

 

[DelJo63]

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.

Describe in more detail please. What's your symptom or error message, does the message stay in the Outbox or disappear?