Using the Get-Recipient , Get-Group , or Get-DistributionGroup cmdlets with a
RecipientTypeDetails of MailUniversalSecurityGroup returns all Security Groups in the
Exchange organization that are mail - enabled. (See Figure 4 - 18 .)
Chapter 4: Working with User and Group Objects
103
Mail - Enabled Nonuniversal Groups
These are Active Directory local or global Security or Distribution Group objects. Use of these groups for
email distribution is greatly de - emphasized in Exchange Server 2007 because unpredictable group
membership expansion could result. Hence, these groups cannot be created from the Exchange
Management Console. Organizations migrating to or coexisting with Exchange Server 2007 may have
these groups already in Active Directory. Using the Set-Group cmdlet, these groups can be converted to
either mail - enabled universal Distribution or Security Groups. In a native Exchange Server 2007
environment, you cannot create a mail - enabled nonuniversal group using the Active Directory Users and
Computers as is the case in an Exchange Server 2000/2003 or a mixed Exchange Server 2000/2003/2007
environment. Figure 4 - 19 shows mail nonuniversal groups in the forest.
Figure 4-18
Figure 4-19
Dynamic Distribution Groups
In Exchange Server 2000/2003, this group type was commonly referred to as Query Based Distribution
Groups (QDG).
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