Exchange Server Share

April 5, 2008

Multiple Global Address List ( GAL ) in Exchange 2007

Filed under: Exchange,Exchange 2007,PowerShell — Amit Tank @ 5:57 pm

Exchange Management Console (EMC) doesn’t allow you to create more than one GAL but PowerShell gives you that functionality.

Before you start you should have Exchange Organization Administrators role in your organization since this is organizational level changes.

Microsoft gives the theoretical limit about number of GAL/Address List in organization is 1300 but I feel nobody would have tired that.

Take a look at Address Lists before creating New GAL in my testing environment.

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Now lets see mailboxes list.

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Here mailboxes has postfix 1 they are in company named ‘Company 1′ and mailboxes has postfix 2 they are in ‘Company 2′.

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Now lets see the syntax for creating New GAL

New-GlobalAddressList -Name <String> -IncludedRecipients <Nullable> -ConditionalCompany <String>

Example to create a GAL:

New-GlobalAddressList -Name “Company 1″ -ConditionalCompany “Company 1″ -IncludedRecipients “AllRecipients”

This will create ‘Company 1′ GAL which includes all type of recipients.

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Here is the new GAL available in Address List and in OWA with all the recipients. 

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  • Here we created the GAL based on Active Directory attribute named Company, in the same way we can create based on below different attributes.

     Company 
     CustomAttribute1 – CustomAttribute15
     Department 
     StateOrProvince

  • Switch -IncludedRecipients can have below different values as per your requirement.

     MailboxUsers
     Resources
     Mailcontacts
     MailGroups
     MailUsers
     AllRecipients

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5 Comments

  1. If I filter 2 groups of people, can’t they see another GAL??

    Comment by Truncate — August 13, 2008 @ 8:56 am

  2. Yes, they can see other’s GAL. You need to configure Address List Segregation. Here is the White Paper about that…

    White Paper: Configuring Virtual Organizations and Address List Segregation in Exchange 2007

    http://technet.microsoft.com/en-us/library/bb936719.aspx

    Comment by Amit Tank — August 13, 2008 @ 3:24 pm

  3. What is the maximum number of GALs allowed

    Comment by abc — December 6, 2008 @ 11:06 pm

  4. Hi
    I need to view “Other telephones” > “Mobile”.

    How to add that value to an Address List?

    So that I can see it from Outlook when I click my Address Book.

    Henrik

    Comment by Henrik — December 17, 2008 @ 11:44 am


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