Thanks for the reply Brian.

I've tested with west winds product and am getting the same results(inconsistencies with the return pages). I was wrong about outlook in my first message, I do get inconsistant results when sending emails out one after another with outlook. I've tried CDO also with the same results. I'm watching the smtp queue and I see all my messages show up and disappear. Does this mean that they are being sent out?

Could our SMTP server be configured wrong??