This article is for Exchange 2010, which will be released to the campus in April 2012.  You can learn more at sandiego.edu/exchange.

Note: Conversation view is only available in the Premium interface of OWA.

Note: OWA now has the same functionality across major browsers in most cases; see In Outlook Web App (OWA), what are the "Premium" and "Light" interfaces? For more information on using OWA, with your Inbox displayed, click ? (the question mark) at the top right.

In Outlook Web App (OWA), conversation view groups email messages into conversations based on the subject of the message. Conversation view is enabled by default for every mail folder in your mailbox. You can disable it, but you will need to disable it on each folder separately; there is no option to disable the setting on multiple folders. To disable or enable conversation view:

1. In the left column of OWA, click the folder for which you want to modify conversation view.
   
   
2. In the right window, below the "New" option, click the drop-down arrow next to "Arrange by:".
   
   
3. At the bottom of the menu, to disable the option, uncheck Conversation, or to enable it, check this box.
   
   
4. Repeat all the steps above for every folder for which you want to disable or enable conversation view.

(Content used with permission of Indiana University. You can find the original at http://kb.iu.edu/data/azwv.html)