http://cantab.net Email Service News and Notices From Cantab.net en-gb 12:05: Dear Members - one of our mail servers is having trouble writing to the backend storage array causing slow access. We are checking this now and will have the service available again as soon as possible. 13:55: Unfortunately a few complications have occurred involving the web server cluster. We are continuing to work on the problem as fast as we can. 14:10: The system seems to have stabilised but may experience a few blips as things settle down. Approx 2000 messages are in the queue to be delivered and will come through shortly. http://cantab.net 1305 Tue, 08 Sep 2009 12:17:04 Europe/London There will be interruptions to the service at 16:00 for about 5 minutes while a new load balancer is brought into service. This notice will be updated as soon as the new server is in place. http://cantab.net 1297 Thu, 27 Aug 2009 15:05:13 Europe/London Due to maintenance needed on the system, there will be a small outage of the service for 5 to 10 minutes at 12:00 today. This will not effect all users and we will update this notice as soon as the maintenance is complete. The maintenance has been completed. http://cantab.net 1289 Thu, 20 Aug 2009 10:23:40 Europe/London Complications with the faulty server switch caused some outages for webmail between 23:00 and 00:00. The service has now been restored and we apologise for any inconvenience this may have caused. http://cantab.net 1288 Thu, 20 Aug 2009 00:38:09 Europe/London A faulty server is being switched out this evening. Some users may experience difficulty connecting to the service for a space of about 2 minutes. A notice will be put up as soon as the change has been completed. http://cantab.net 1287 Wed, 19 Aug 2009 19:36:18 Europe/London 9:45am: We've just lost one of the perimeter servers responsible for balancing the website, client and webmail traffic. The remaining perimeter servers and the entire mail cluster itself are all online and operational, no email will be affected. We'll keep you informed here when any updates are available. 10:10am: All back online, a single drive failure in the perimeter server caused it to fail completely. We naturally use RAID (basically the use of multiple disks to act as one) to prevent such failures knocking out individual servers but for an as yet unknown reason the RAID array failed with the drive. We are now trying to determine why this occurred. http://cantab.net 1286 Wed, 19 Aug 2009 10:11:20 Europe/London 11am : We are currently experiencing issues with server overloading - we have over 3 times the normal number of connections to the mail servers which has just pushed them beyond what they are capable of processing. We have been investigating all morning and will keep you informed of any progress. 11:50am: Mail server software on one mail server had been upgraded first thing this morning and whilst it appeared fine under early morning light load it quickly failed with the '9am' rush to check email. The cause of the high number of connections appears to be a result of an issue with this one server. Software has been rolled back now and the servers are stabilising. Apologies for the inconvenience. http://cantab.net 1280 Mon, 27 Jul 2009 11:54:00 Europe/London We are currently investigating a service wide outage that has been caused by a backend network failure at the datacenter. We are in the process of switching to the secondary network now and should have everything running smoothly again shortly. Update: The system is operational again although we are still monitoring a few potential issues. We're sorry about this - somehow our datacentre managed to completely break their internal network which our servers use to communicate with each other. We switched to a backup network to get things back online. http://cantab.net 1278 Mon, 06 Jul 2009 13:27:58 Europe/London Dear Members: We have thousands of mailboxes in our Import queue. Due to a limit on the rate we can import your folders we urge you to start your migration WELL in advance of your student email account termination date. We cannot guarantee that your mail will be imported unless you give the process plenty of time: at least one to two weeks. http://cantab.net 1277 Thu, 02 Jul 2009 10:04:05 Europe/London We've noted a large amount of scam emails reaching our members with the subject of 'CONTACT FEDEX COURIER FOR YOUR PARCEL' that then goes on to ask for your username and password. As usual this is a fake email simply designed to trick you into handing over your login details. Never respond to ANY email asking for your account password, ignore and delete it instead. If you've mistakenly responded to the email, login to your account and change your password to something completely different immediately. You may also wish to inform support (help@aluminati.net) so that we can keep an eye on your account security. http://cantab.net 1275 Fri, 26 Jun 2009 14:42:06 Europe/London