*** DISTRIBUTION LIST ***

A distribution list, is a collection of email addresses that allows you to email multiple people at one time. A distribution list can contain a few addresses, or many.
All email systems at Indiana University provide ways to create, manage, and send to distribution lists, but the available commands, options, and capacities will vary on each system.

Distribution List in Outlook

 In Outlook, such lists are  called "distribution list". Using such a distribution list, you can then send an email to a group of people easily. But first, let's find out how to set up a mailing list in Outlook — easily.

Set Up a Distribution List in Outlook

To set up a mailing list in Outlook:
 
*Select File | New | Distribution List from the menu.
*Alternatively, hit Ctrl-Shift-L (think list).
*Type the desired name under Name:.
*The list name is what you will use to address messages to the list.
*Now, you can add new members immediately using the Add New... and Select Members... buttons.
*Click Save and Close.

Mail Your List from Outlook

With your distribution list in place and ready, you can start sending messages to its members.

Categories as Distribution Lists

If you find Outlook's distribution lists a bit unstable, arcane and separated from your main list of contacts, you can use contact categories to form elegant mailing lists.


For more Information:

-How to Send a Message to a Distribution List in Outlook
-How to Add Members to a Distribution List in Outlook
-How to Use Contact Categories as Distribution Lists in Outlook
-How do I send mail to group of people?

http://kb.iu.edu/data/afgs.html
http://email.about.com/od/outlooktips/qt/Distribution_List_Outlook.htm