My apologies for this. I knew people weren't getting the email notifications for PMs prior to the site upgrade in late 2013, but after that people had said they had started getting them again so I'd assumed that everything was ok and nobody was having any issues. Check that admin@fordfiestast.co.uk is in your safe list and I've also reset a couple of settings and sent a test PM to you and Rob - have a look to see if you've received any email notification or not.