On Sunday the 17th of May at 8AM (BST) we will be converting our Zimbra ldap servers to 64 bit.  This will allow us to allocate more resources as required in future to keep up with demand.  Zimbra will be unavailable during the conversion.

Maintenance Start: 08:00 (BST) 17th May 2009

Maintenance End: 10:00 (BST) 17th May 2009

During the maintenance window all incoming email will be queued, access to the Zimbra servers will be restricted and Zimbra customers will not be able to access their mailboxes.