We ran the test twice with 102 email address and everything worked fine.
We are not sure that the number of messages was large enough to put a strain on the Barracuda or the mail system. So we either need to create thousands of test email account to test with or schedule a full test again and see if the changes we have made really did improved the performance.

Thanks for your patience

Jamie Voyles
HSB 119
217 206-7840