Just an FYI folks. To allow my ISP to identify a fault on the line, I've got to take the entire network offline for an hour. This will obviously mean all servers will be unavailable.
The network will be taken offline this evening at 19:00 GMT London, and will be back at 20:00 GMT London.
Obviously, the mail server will be offline during this time (used by sites such as sGB, hpHosts).