Address Book is the calendaring application preinstalled on every Mac computer as part of Mac OS X. The version of Mac OS X that was released in September 2009, Mac OS version 10.6 also known as Snow Leopard, provides inbuilt support for connecting to Exchange servers. As a result Snow Leopard users are able to use the Oxford Nexus email, shared calendaring and address book facilities from your Mac via the inbuilt applications. So, Mac users who are running Snow Leopard can use Nexus contacts via Address Book on their Mac.

Nexus provides two distinct address books:
The Nexus Global Address Book
This contains the email address and department/college of each member of the University. It is updated centrally, and you cannot add to or change it. If your own details are incorrect, please inform the University Computing Services Help Centre.
Each user has their own address book, stored on the Nexus servers so that it is available from anywhere in the world via Outlook Web Access. You can use this to store the details of friends, colleagues, family, or anyone you want! You can also create distribution lists, which allow you to group together a set of people who you frequently email together, such as your research group, or housemates.

If you have already configured Mail or iCal to use Nexus the chances are that your Address Book application has already been set up for you to use with Nexus. That is because when you add an Exchange account to Mail or iCal the default behaviour is to also set up the other components that make up the suite of programs that can be used with Exchange at the same time. This can be seen in the Account Summary screen that you get, for example, when configuring Mail (note the "Also set up:" check boxes):

Account Summary screen listing account details

However, if you need to configure Address Book to connect to Nexus manually follow the instructions below.

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