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Why create a Distribution Group instead of a Security Group?

 
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Jesper Frier
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Joined: 09 Sep 2006
Posts: 1925
Location: Stoevring, Denmark

Posted: Thu Jun 28, 2007 7:31 pm    Post subject: Why create a Distribution Group instead of a Security Group? Reply with quote

Why create a Distribution Group instead of a Security Group?

Quote:
As far as I am aware security groups can do the same things that a distribution group can do with the added advantage that they can also be used to assign permissions to files or shares whereas distribution groups cannot.
If that is the case then why would anyone ever want to create a distribution group instead of a security group?


You want to create a distribution group if you intend to use the group for email distribution rather than for security.
Adding a user to a large number of security groups will increase the size of the user's security token (e.g. NTFS, Public Folder permission), a problem that will be avoided by using distribution groups where a security context is not required.

AD Groups supported
  1. Distribution lists
  2. Nested distribution lists
  3. Security groups - no nested groups


Use GPResult command line to Troubleshoot Security Groups


Last edited by Jesper Frier on Mon Jan 11, 2010 8:46 am; edited 6 times in total
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Jesper Frier
Certified Professional
Certified Professional


Joined: 09 Sep 2006
Posts: 1925
Location: Stoevring, Denmark

Posted: Tue Aug 07, 2007 12:52 pm    Post subject: Query-based Distribution Groups Reply with quote

The use of Query-based Distribution Groups are not yet supported

A query-based distribution group is a new additional type of distribution group in Exchange 2003. This new type of distribution group provides the same functionality as a standard distribution group; however, instead of specifying static user memberships, a query-based distribution group allows you to use an LDAP query to dynamically build membership in the distribution group (for example All employees with a special group membership). Using query-based distribution groups we can reduce the administration costs dramatically.

How Does a Query-Based Distribution Group Work?
  1. An e-Mail is submitted to the submission queue of the Exchange store driver or through SMTP
  2. The message categorizer determines that the recipient is a Query-based Distribution Group
  3. The categorizer sends an LDAP request to an global catalog server
  4. The contacted global catalog server executes the query and returns the addresses that matches the query
  5. After receiving the complete set of addresses matching the query, the categorizer generates a recipient list containing all the users.
  6. After the categorizer sends the complete, list of recipients to routing, the normal message delivery process continues, and the e-mail message is delivered to the users mailboxes.

Read more ...
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