Due to a misconfiguration of server NC020 by data centre personnel in response to a networking request from NinerNet that resulted from a change in one of their policies, this server stopped processing email properly earlier today. This resulted in some instability and the rebooting of the server three times between 07:22 and 08:06 UTC.
These problems affected only email processed for NinerNet domains, not any client email. However, because there are still a few client websites hosted on this server, including this status blog, these sites would have been down and up for some time this morning.
We have corrected the networking issue and have remonstrated with the data centre over the issue. We apologise for any inconvenience caused and will endeavour to ensure that this does not happen again.