After a quick email to a few people I know in IT we pushed our little project out into the world. Thanks to those who tried it pretty much straight away and were quick to tell us we had a few problems with our registration process. Firstly we would have intermittent failures with our emailing sending resulting in a nasty yellow screen of death, the second is that certain hosts appear to be treating our mail as SPAM particularly Hotmail. As a short term fix we have modified the registration process to offer a one step register and sign in, hopefully that won't impact us in the long term but does create a bit more risk that people may not have correct email addresses and therefore may not receive our alert emails but it is a risk we have to take.