I have now set everything up and tested sending the odd email and everything worked fine. I added about 130 people to an audience and set the sending limits as given to me by the ISP but when I start the mailing it sends two emails then stops. The 'Sending Mailing' overlay stays on the screen and just stays at 2 of 130. If I stop the mailing then restart it it goes to 4 of 130 and continues that way.
In other words it will only send two emails at a time.
Is this the server?