We have not yet been able to determine a cause of the problem with the mail server (NC027). It seems that it stopped processing mail at 08:46 UTC, which means it was unavailable for 56 minutes until it was up and running again at 09:42 UTC. The server didn’t become completely unresponsive to monitoring until about 09:25 UTC, which is when the problem came to out attention. A few minutes later, after determining that the server was completely inaccessible and posting to our status page, we issued a full reboot. After a few minutes of disk scanning, the server was back online and processing email.
We apologise again for this brief interruption in service. If you have any questions, please contact us and we will be happy to respond.