These guidelines were drawn up from the experience of migrating from the old OUCS Herald email system and with other, more recent migrations in mind. This document attempts to set out some responsibilities of IT Services and the unit with regards to such a process.
Some departments and colleges run their own Exchange or other email service. Where a unit wishes to migrate from their local service to Nexus IT Services will provide advice to departments and colleges on a reasonable efforts basis, including an initial assessment of the complexity and likely resources required to undertake any such migration, as well as providing supporting materials relating to the preferred methods of undertaking any migration process. However, no specific resources have been allocated for IT Services to undertake a migration from a department service to the Nexus Service or for enabling interoperability between Nexus and a local Exchange instance, for example. Departments wishing to migrate from a local service or who wish to use Nexus beyond the scope of the service defined in this SLD would be expected to commit the required resources to enable any IT Services support for such activities (where feasible). Some useful background information, including indicators of the level of support IT Services can provide to migrating units is described at <http://www.oucs.ox.ac.uk/nexus/itss/altmigrate.xml>. Departments seeking a hosting facility for their own Exchange or email service should contact NSMS in the first instance.