exchange 2010 migration - names, IP and outlook

on a 2008 domain I am going to migrate from my single exchange 2003 to 2010. When I install the new 2010 server do i use the same ‘Exchange Organization name’ as my existing 2003 server? Will it even ask me if it’s not the first server?

Secondly all my clients have outlook 2007 configured with an exchange server IP of 10.x.x.1 (which currently resolves to the 2003 server name), i plan to change the IP of the 2010 server to this .1 address after removing the 2003 server (and turning it off) will outlook update itself, or hang looking for the old server name? should I leave a host entry in dns for the old servers name to the .1 address just in case?
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PeteAsked:
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Dmitriy Ilyinsenior system administratorCommented:
If you will install E14 in the same domain it will not ask you during install.
E14 server name should be different. Outlook 2007 and higher clients can use Autodiscover future of E14 and get new options automaticly if you will tune Autodiscover correctly.
Also about IP... If you have DNS server that work properly then after completly migrate to E14 you can change IP address of server.
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PeteAuthor Commented:
thanks, will the autodiscover feature ask the user for any information to be entered when they start outlook once their mailbox has been moved? if it makes any difference outlook is installed with the rest of office 07 using a custom msp file that specifies the exchange IP.
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PeteAuthor Commented:
i think after the 2010 migration users who log into outlook for the first time will get their outlook profile created because of my previously mentioned outlook install method. i am most worried about users with exisiting outlook profiles who start outlook with the old server name as their mail server, will the autodiscover config sort this out too?
there is lots of stuff on net about leaving the 2003 server running for a few weeks, to allow users to be re-directed and outlook to change it's config. is this something autodiscover removes the need for?
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Dmitriy Ilyinsenior system administratorCommented:
>if it makes any difference outlook is installed with the rest of office 07 using a custom msp file that specifies the exchange IP.
No. There is not any differents.

Well. Autodiscover service more powerfull than you think )
I suggest you to start from here http://technet.microsoft.com/en-us/library/bb332063(EXCHG.80).aspx
It's about 2007 Autodiscover, but it almost the same for 2010.

Main info for you How the Autodiscover Service Works with Clients
http://technet.microsoft.com/en-us/library/bb332063(EXCHG.80).aspx#HowTheADSWorks

After reading this i hope all question will gone.
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