7. Important changes for Apple Mail users

Note, this will also affect the Mac iCal client and Address Book, if you use these software clients.

Apple Mail users accessing Oxford Nexus via Exchange Web Services (EWS) experienced a change on or after 14 February 2012. (If you use Apple Mail and did not notice any interruption in service on 14 February, it may be that it is configured to use IMAP - in which case you should do nothing.)

If you are affected, you have the following options:
  • Do nothing. Use another email client instead (including Outlook Web App). Once your mailbox has been upgraded, Apple Mail will begin to work again.
  • Reconfigure your Apple Mail client (and iCal, and Address Book, if relevant) to use the server name "legacy.nexus.ox.ac.uk". When your mailbox is upgraded, you will need to change these back to "nexus.ox.ac.uk". Don't forget to stop the software completely (AppleKey-Q) as the changes don't refresh without fully restarting the client. See below for screen shots and instructions.
  • Reconfigure your Apple Mail client to use IMAP. This seems like an obvious solution. It can be made to work but we do not recommend it. This is a relatively complicated procedure and can cause undesired effects.

** Note - this change/impact is regarding this specific software only. Other Apple hardware (e.g. iPhones, iPods, iPads etc.) and the Safari web browser are not affected. **

What to do to set up Apple Mail after 14 February but before your upgrade to Exchange 2010

Instructions for re-configuring an existing Apple Mail client (and iCal and the Address Book)

The main changes that you need to make on 14 February is to go into the 'Preferences' to find the 'Account Information' or 'Server Settings' of all three of these applications (or whichever ones you use) and change the Internal server: and External server: settings both to legacy.nexus.ox.ac.uk.

When your mailbox has been upgraded, again go into the 'Preferences' to find the 'Account Information' or 'Server Settings' of all three of these applications and change the Internal server: and External server: settings both back to nexus.ox.ac.uk (i.e. just remove the "legacy." that you added previously.

The following notes have been taken from an installation of Snow Leopard. Other versions are roughly similar.

To make these changes in Apple Mail, in the main menu (top of the screen):
  • (optional, but see the final bullet, here) disconnect your Mac from the wired and wireless networks
  • click on Mail, then
  • click on Preferences
  • Make the changes detailed above (and illustrated in the screen shots below) in the Accounts - Account Information window.
  • Save these settings by clicking the red close button. (You may be prompted to confirm the Save).
  • Then close down Mail entirely by pressing the Apple button (Cmd) and the letter Q or, via the menu, Mail -> Quit Mail. When you next start up Mail, the new settings should take effect.
  • Reconnect your Mac to the network
  • (Note if you did not disconnect from the network, you may see odd effects such as duplicate emails appearing. These are phantom duplicates: they only exist on your Mac and not on the server. The duplicates should be removed if you select Mailbox -> Rebuild from the main menu.)
To make these changes in iCal, in the main menu (top of the screen):
  • (optional, but see the final bullet, here) disconnect your Mac from the wired and wireless networks
  • click on iCal, then
  • click on Preferences
  • Make the changes detailed above (and illustrated in the screen shots below) in the Accounts - Server Settings window.
  • Save these settings by clicking the red close button. (You may be prompted to confirm the Save).
  • Then close down iCal entirely by pressing the Apple button (Cmd) and the letter Q or, via the menu, iCal -> Quit iCal. When you next start up iCal, the new settings should take effect.
  • Reconnect your Mac to the network. If you see any duplicates or other synch problems, select Calendar -> Refresh All from the main menu.
  • Note that you may see an exclamation mark on the iCal icon. If you do, click on it and re-enter your password when asked. It is possible that you will not see this behaviour, however.
To make these changes in Address Book, in the main menu (top of the screen):
  • (optional) disconnect your Mac from the wired and wireless networks
  • click on Address Book, then
  • click on Preferences
  • Make the changes detailed above (and illustrated in the screen shots below) in the Accounts - Server Settings window.
  • Save these settings by clicking the red close button. (You may be prompted to confirm the Save).
  • Then close down Address Book entirely by pressing the Apple button (Cmd) and the letter Q or, via the menu, Address Book -> Quit Address Book. When you next start up iCal, the new settings should take effect.
  • Reconnect your Mac to the network.

Useful screen shots for re-configuring existing Apple Mail clients

Apple Mail main menu, Mail -> Preferences

Graphic of the usual configuration for Apple Mail (before 14 February and
                  after mailbox upgrade)
Figure 3. Usual configuration for Apple Mail (before 14 February and after mailbox upgrade)

During coexistence...

Graphic of the coexistence configuration for Apple Mail (from 14 February
                  until mailbox upgrade)
Figure 4. Configuration for Apple Mail during coexistence of Exchange 2010 and Exchange 2007 (required on 14 February 2012 and until your mailbox upgrade)

Note that it may be best to disconnect from the network (wired and wireless) while making these changes. After making changes, don't forget to close down Mail entirely by pressing the Apple button (Cmd) and the letter Q or, via the menu, Mail -> Quit Mail. When you next start up Mail, the new settings should take effect.

Useful screen shots for re-configuring existing iCal clients

iCal main menu, iCal -> Preferences -> Accounts -> Server Settings.

Graphic of the usual configuration for iCal (before 14 February and after
                  mailbox upgrade)
Figure 5. Usual configuration for iCal (before 14 February and after mailbox upgrade)

During coexistence...

Graphic of the coexistence configuration for iCal (from 14 February until
                  mailbox upgrade)
Figure 6. Configuration for iCal during coexistence of Exchange 2010 and Exchange 2007 (required on 14 February 2012 and until your mailbox upgrade)

After making changes, don't forget to close down iCal entirely by pressing the Apple button (Cmd) and the letter Q or, via the menu, iCal -> Quit iCal. When you next start up iCal, the new settings should take effect.

Useful screen shots for re-configuring existing Address Book clients

Address Book main menu, Address Book -> Preferences -> Accounts -> Server Settings.

Graphic of the usual configuration for Address Book (before 14 February and
                  after mailbox upgrade)
Figure 7. Usual configuration for Address Book (before 14 February and after mailbox upgrade)

During coexistence...

Graphic of the coexistence configuration for Address Book (from 14 February
                  until mailbox upgrade)
Figure 8. Configuration for Address Book during coexistence of Exchange 2010 and Exchange 2007 (required on 14 February 2012 and until your mailbox upgrade)

After making changes, don't forget to close down Address Book entirely by pressing the Apple button (Cmd) and the letter Q or, via the menu, Address Book -> Quit Address Book. When you next start up Address Book, the new settings should take effect.

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