Creating Mail-Enabled Groups
A mail-enabled group represents a collection of recipient objects. Its purpose is to speed up the distribution of messages to multiple e-mail addresses. Create a group as you would any other recipient object. Notice, however, that Create an Exchange e-mail address is not selected by default for groups. To enable the group for mail, select Create an Exchange e-mail address during the process of creating the group. For detailed instructions, see How to Enable an Existing Group for Mail.
Creating a group that is enabled for mail