Our authoritative DNS servers are failing at the moment, this is being investigated. [Update 17:30 - a new problem has occurred, we are investigating.
This is affecting various services that we host. Our engineers are working on this and expect it to be fixed shortly.
The primary DNS server for our zones (aa.net.uk) is now back online. Services should be starting to work again.
The DNS problem has returned - similar to this morning. We are investigating at the moment.
DNS servers are resolving correctly now. We do apologies for this problem. Our engineering team are investigating the cause and how we can prevent this from happening again.