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Google is your friend:<br />
<br />
<a href="http://technet.microsoft.com/en-us/library/ff805032%28v=exchg.141%29.aspx" rel="ugc">http://technet.microsoft.com/en-us/library/ff805032%28v=exchg.141%29.aspx</a>
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Google is your friend:

http://technet.microsoft.com/en-us/library/ff805032%28v=exchg.141%29.aspx [http://technet.microsoft.com/en-us/library/ff805032%28v=exchg.141%29.aspx]

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Is this a fresh installation or you already have older Exchange version in the environment. If fresh installation, it hardly matter, what sequence you need to follow, if you are planning to do transition, then follow CAS&gt;HUB&gt;MBX
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Is this a fresh installation or you already have older Exchange version in the environment. If fresh installation, it hardly matter, what sequence you need to follow, if you are planning to do transition, then follow CAS>HUB>MBX

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FYI, You posted the same link for the installation that I did in the original post.<br />
<br />
Literally the exact same steps.
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FYI, You posted the same link for the installation that I did in the original post.

Literally the exact same steps.

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while deploying exchange 2007 or 2010<br />
<br />
which role should be installed first. CAS, HUB, MAILBOX , OR EDGE
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while deploying exchange 2007 or 2010

which role should be installed first. CAS, HUB, MAILBOX , OR EDGE

exchange 2007, 2010, ROLES

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.