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Exchange 2003 Decomission to 2010

Posted on 2013-12-11
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Last Modified: 2013-12-11
Hi guys,

We are attempting to migrate Exchange2003 on Windows Sever 2003 Standard to Exchange2010 on Windows server 2008 R2;

1) Whilst attempting to DCPROMO the DC that is 'Front End Exchange'. When they try this it says it says "cannot perform the action due to the server operating as an internal CA server".  How can we remove the internal CA role from the server? Also, how do we transfer the CA to a new server as there are certificates in place?

2) We still have some legacy references to the Exchange 2003 environment after the uninstall on both servers, now in the case of the front end, this didn't work cleanly and we had to remove manually. So we are looking for some advice on what the best cause of action would be to take in order to clean up the environment?

3) We also need to either edit and upgrade the Address Lists and also the Email Address Policies on the 2010 servers as they are currently configured in a legacy 2003 setup.

4) Finally, We also have issues with Distribution groups not functioning in the way they used to under the 2003 environment, i.e. some users who managed the various distribution groups no longer have this privilege. When we check properties of the distribution group, all looks fine?

Any advice is greatly appreciated, Thank you!
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Question by:YellowbusTeam
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Will Szymkowski earned 500 total points
ID: 39711264
Answers to questions below...

1. You cannot demote a domain controller until the Internal CA has been removed or transfered to another server. steps - http://support.microsoft.com/kb/555012

2. If have you already uninstalled Exchange 2003 you will need to cleanup remnats of Exchange 2003 using ADSIEdit. Steps - http://support.microsoft.com/kb/833396

3. If you have removed Exchange from your environment you are out of luck migrating Address Lists and Email Address Policies because Exchange 2003 is required during the migration. What you will need to do is remove the addresslists from Exchange 2010 Console and then re-create them in 2010. Steps - http://technet.microsoft.com/en-us/library/dd535387(v=exchg.80).aspx

Also create email address policy in Exchange 2010. Steps - http://exchangeserverpro.com/exchange-server-2010-email-address-policies/

4. I would first start with the cleanup and then re-visit this issue once everything has been done properly. If there is still an issue look at it when cleanup is completed.

Will.
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by:YellowbusTeam
ID: 39711443
Thanks for your help Will.
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