Nexus365: how will the move to Nexus365 affect me?

5/6/17:  If you access your email via a desktop client/programme (e.g. Outlook, Mac Mail) you will see little change.  If you access emails via OWA (Outlook Web App) you will notice a newer more modern interface.

No, your email address will remain the same.


  • Yes, you will but you will need to reconfigure how your client/programme is set up.
  • Support for IMAP clients will be retained and can be set up using POP and IMAP Account Settings from Microsoft.


No. This project will not be updating Outlook or local Office products. Maintaining, updating, and supporting Outlook is carried out by your Local IT Support.  (See related question below.)

For maximum performance, security, and functionality we recommend that you use a version of Outlook that is still actively supported by Microsoft under ‘mainstream support’. You can check your version’s support status here:, Office 365 is designed to work best with Office 2016, Office 2013, and Office 2016 for Mac.  Older versions of Outlook can still connect to Nexus365 but with reduced functionality and very old out-of-support versions of Outlook many need to be reconfigured to connect using IMAP4 (see above).

The main migration of accounts started in early April. Research postgraduate student accounts are being migrated with their department/college.  Undergraduate, taught postgraduate and other student accounts will be moved between 30th July and 14th August - see Nexus365 timeline.

30/5/17: The functionality will remain as it is now - you will not lose anything

Chrome, Firefox, Internet Explorer, Edge, Safari, Opera

Email accounts will be migrated with their primary affiliation, as indicated in the Company field of GAL (global address list). This is the address list you access through your email account.  Your email account would migrate to Nexus365 at a different time to your colleagues' if you have different primary affiliations.  Please contact your local ITSS if you think your account should have been migrated or call the central Service Desk on (01865 6) 12345 if you are in UAS or Bodleian Libraries.

In order to minimise disruption to users with shared calendars there is a need to migrate email domains simultaneously or as near together as possible. This means that we will be migrating accounts primarily affiliated to each department, faculty and college as one unit (where possible over a single night). Email accounts therefore will be migrated with their primary affiliation, as indicated in the Company field of GAL (the global address list). This is the address list you access through your email account.
Undergraduate and taught postgraduate student accounts will be moved to Nexus365 at the end of the migration schedule, in July-August, in order to avoid the main examination period.

Once ALL email accounts have been moved to Nexus365 shared mailboxes will work as they do now. Until that time you might not see the full details of shared mailboxes, for example, you might only see free or busy information in calendars.

Yes, once all Nexus accounts have been migrated.  However, during the migration period there will be some restrictions, for example:

  1. The secondary mailbox has not been migrated - this will depend upon the urgency of the access requirement
    • Urgent - To add an un-migrated mailbox you need to add the account using the old email's credentials.  When it is migrated it will appear twice, one pre-migration and one new.  The pre-migration copy will no longer function and can be deleted.
    • Non-urgent - Wait for the secondary mailbox to be migrated.  When this happens it will appear in the folder list as long as it has the correct permissions.
  2. If the secondary mailbox had been previously added manually as an Additional Account.
    • The secondary mailbox needs adding again as an additional account.  It will require the email address, SSO and password to be entered to activate the account.
  3. The user was added as a delegate to the secondary mailbox via an Outlook client prior to Exchange 2007.  The problem is that Exchange does not see local permissions so they won't have been carried over.
    • The owner of the secondary mailbox needs to raise a HEAT ticket granting the user access as per the normal procedure.

You will always be able to see 'free' and 'busy' information in other people's calendars but, until ALL email accounts are moved to Nexus365, you might not be able to see any more detail than that.

Yes, all your emails and calendar information  move across to Nexus365 when your account is migrated.

Message-processing rules can be specific to your email client program, or stored centrally on the server.  Server rules are the most common.  These will always operate regardless of whether your email program is open.  All server-side rules will be migrated automatically as part of Nexus move to Nexus365.

Rules which are unique to your email program may need to be updated after you move.  This is dependent on the program you're using as well as what tasks the rule undertakes.  Microsoft Outlook adds the words 'client only' in brackets after the rules's name, to help you identify those.  Client only rules will only work when your email program is running.  Non-Microsoft email programs may not distinguish between server-side and client-only rules.  No rules will be deleted as part of the move and, depending on what your rules are configured to, most client-only rules should continue to work after it is completed.

Yes, the Out of Office will continue to work, however, there is a problem after migration when the Automatic Reply 'end time' has passed.  Out of Office messages will still continue to be sent from your account even though the the Auto Reply shows that it has returned to 'Don't send out replies'. To workaround this bug see Out of Office still sending despite showing turned off.

If your email service has been provided through the Nexus service, your email and calendaring will come via the Nexus365 cloud-based service instead. In addition you get:
  • 50GB email quota
  • Access to OneDrive for Business (this will complement existing systems and drives)
  • Easy access to the 2016 Office suite, for use on personal devices while a member of the University
  • Teams and Delve
  • Skype for Business
Yes.  See Teams and Groups for Group functionality information.
Microsoft currently allows you to download 5 copies to desktops/laptops and 5 to mobiles/tablets for use on personal devices while a member of the University

You can access your email and calendar via an email client/program on your computer (e.g. Outlook) or via a web browser.  The other tools available with Nexus365 (e.g. One Drive for Business, Skype for Business, Delve) are only available via the web browser version of Nexus365.   For more information on Teams/Groups see


No, it does not.  The Nexus team will be better able to support the email and calendaring service.

Staff / student changes during the migration period

New accounts will be set up on premise (ie in the existing system) and moved to Nexus365 either with their units (if they have not yet been migrated) or as part of a weekly 'catch-up' process 

They will be captured in the weekly catch-up process to establish when they should be migrated.

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