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Exchange 2010 CAS Role

When Accessing mailbox using MAPI client [Outlook] or sending email using MAPI client [Outlook], I wonder if Outlook needs first to go through CAS Role or straight to Mailbox server role .

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jskfan
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jskfan
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3 Solutions
 
steforCommented:
In Exchange 2007 and 2010 you need the Client Access Role to access the mailbox. You will also need the Hub transport role to send e-mails.
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jskfanAuthor Commented:
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AkhaterCommented:
in Exchange 2007 MAPI connections will be to the mailbox server, in exchange 2010 MAPI connections are done to the CAS servers.

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jskfanAuthor Commented:
Microsoft Link I posted above, talks about the client that goes through CAS server, I have not see MAPI client (Outlook). it looks like it is used as the old Front End Server.
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AkhaterCommented:
Again in exchange 2010 ALL CLIENTS access is through the CAS including MAPI (exception is the public folder access), it is now a complete 3 tiers technology.

In exchange 2007 MAPI clients will connect to the Mailbox server directly all other clients to the cas (like the old FE server)

If you are having a hard time believing me read this
http://www.msexchange.org/articles_tutorials/exchange-server-2007/planning-architecture/uncovering-new-rpc-client-access-service-exchange-2010-part1.html
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jskfanAuthor Commented:
thanks
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