My CS 2.1 installation don't send any email. I even don't see any row in EmailQueue table! There are no errors in event log and I don't now what is going on!
If you go to the Control Panel and go to Administration, Settings, Email Settings, can you make sure Enable Email is set to Yes, and that your SMTP server information is set up properly.
Then, I'd go and do something that would generate an email, like request a forgotten password, and then check the email queue table to ensure it has a row.
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