You can connect Microsoft Entourage 2008 for Mac OS X to your account using Entourage 2008, Web Services Edition. To do this, you first need to install Entourage 2008, Web Services Edition. This version of Entourage is available as a free update to Microsoft Office 2008 for Mac. To download this update and learn more about the Web Services Edition, see the Microsoft Download details for Microsoft Entourage 2008 for Mac, Web Services Edition web page.
You can also connect Entourage for Mac OS X to your account using POP3 or IMAP4, but you won't get all the features that are available with Entourage 2008, Web Services Edition. For more information, see Access your account using a Mac.
Please also be aware that Entourage for Mac OS X is no longer being updated. As features are added to Microsoft Office 365, they may not be supported in Entourage. Therefore, we recommend switching to either Microsoft Office 2011 for Mac OS X or Mac Mail (which comes with Mac OS X).
The following links will assist you in setting the email clients on your Apple Mac computer. Please note, all of these links point to instructions on Microsoft's web site. As updates are made to Office 365, these instructions will also be modified to show the most up to date information. The same is true if your Mac OS is upgraded. If you experience problems connecting your system to Office 365, you may want to check this site to see if changes are required in the setup for your computer.
There are some known issues when setting up Entourage to connect with Office 365. As this list may change from time to time, the actual issues are not included on this page. You may view them at What else do I need to know?, which is on Microsoft's site and will be kept up to date as new information becomes available.