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Create a Group that will be member of this Group and make DomainA users of that new group<br />
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- Rancy
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Create a Group that will be member of this Group and make DomainA users of that new group

- Rancy

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I tried that. &nbsp;A universal group can contain only global groups or universal groups from the same forest.
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I tried that.  A universal group can contain only global groups or universal groups from the same forest.

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<a href="https://www.experts-exchange.com/questions/27186333/Exchange-2010-granting-permissions-to-mailboxes-for-users-in-a-trusted-domain.html" rel="ugc">https://www.experts-exchange.com/questions/27186333/Exchange-2010-granting-permissions-to-mailboxes-for-users-in-a-trusted-domain.html</a>
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https://www.experts-exchange.com/questions/27186333/Exchange-2010-granting-permissions-to-mailboxes-for-users-in-a-trusted-domain.html [https://www.experts-exchange.com/questions/27186333/Exchange-2010-granting-permissions-to-mailboxes-for-users-in-a-trusted-domain.html]

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The article link from Akhater is exactly what I need...but I am going to give his response a low &quot;quality&quot; score because he is completely wrong about universal groups. &nbsp;To quote , support.microsoft.com/kb/8<wbr />84417 &quot;A universal group is a security or distribution group that contains users, groups, and computers from any domain <u>in its forest </u>as members&quot;
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The article link from Akhater is exactly what I need...but I am going to give his response a low "quality" score because he is completely wrong about universal groups.  To quote , support.microsoft.com/kb/884417 "A universal group is a security or distribution group that contains users, groups, and computers from any domain in its forest as members"

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We have two domains (seperate forests) with a two-way trust between them. &nbsp;I want to give some users in DomainA administrative rights for the MS-Exchange 2007 server in DomainB.<br />
<br />
The &quot;Exchange Organization Administrators&quot; group is a Universal group, and it seems it cannot contain users or groups from a different forest. &nbsp;<br />
<br />
Any suggestions?
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We have two domains (seperate forests) with a two-way trust between them.  I want to give some users in DomainA administrative rights for the MS-Exchange 2007 server in DomainB.

The "Exchange Organization Administrators" group is a Universal group, and it seems it cannot contain users or groups from a different forest.  

Any suggestions?

How to grant Exchange Administator rights to users from a trusted domain (different forest)

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.