Thursday, 2 July. Zimbra have advised a critical configuration change which we will be performing tonight at 22:00 BST. This change has been recommended to all Zimbra Collaboration Suite users, not just In-Tuition.

We are scheduling an emergency maintenance window of 1 hour but expect there to be no more than 10 minutes of downtime at the most. During this time, it will not be possible to access Zimbra and all incoming emails will be queued.

We apologise for any inconvenience this might cause.