You are the systems administrator for your company. You use Windows Essential Business Server 2008 to manage users and the network. All clients use Outlook 2003 or Outlook 2007 and are configured to use the Messaging Server. Some employees in the marketing department use external e-mail addresses when they are traveling. You must ensure that users in the marketing department can receive official e-mail while traveling.

You decide to use pre-canned filters to send official e-mail to the users in the marketing department via their external e-mail addresses.

Which type of group should you create to be able to use pre-canned filters?

A.
Dynamic distribution group

B.
Mail-enabled distribution group

C.
Mail-enabled security group

D.
Mail-enabled public folder

Explanation:
You should create a dynamic distribution group. Dynamic distribution groups use recipient filters and conditions to derive their membership at the time the message is sent. Exchange 2007 provides pre-canned filters that help you create recipient filters for dynamic distribution groups. Pre-canned filters can meet a variety of recipient-filtering criteria. These filters can be used to specify the recipient types you want to include in a dynamic distribution group, such as users with external email addresses and contacts with external email addresses. You can specify these filters on the Filter tab in the Properties dialog box of a dynamic distribution group.
In addition to configuring recipient filters, you can also specify conditions based on recipient properties. You can specify conditions on the Conditions tab in the Properties dialog box of a dynamic distribution group. When you want to make a distribution group available from the Internet, you should create a dynamic distribution group.

You should not create a mail-enabled universal distribution group. Creating a mail-enabled universal distribution group will not allow you to use pre-canned filters to send emails to specific users that have external email addresses. Instead, you can use mail contacts with mail-enabled distribution groups to send e-mail messages to users that have external e-mail address. A mail contact is a mail-enabled Active Directory contact that contains information about people or organizations that exist outside an Exchange organization. Each mail contact has an external e-mail address and all messages sent to the mail contact are routed to this external e-mail address. Mail contacts can appear in the Global Address List (GAL) and other address lists, and can be added as members to distribution groups.

You should not create a mail-enabled universal security group. These groups are Active Directory security group objects that are mail-enabled. Mail-enabled universal security groups can be used to grant access permissions to resources in Active Directory and to distribute messages. Creating a mail-enabled universal security group will not allow you to use pre-canned filters to send emails only to specific users that have external email addresses.

You should not create a mail-enabled non-universal group. These are mail-enabled Active Directory global or local objects. You cannot create a mail-enabled non-universal group in Exchange Server 2007. In Exchange Server 2007, you can create or mail-enable universal distribution groups only.