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Monday, July 22, 2024

Rapid Migration Guide from Exchange 2003 to Exchange 2010

After a short run we came up with this plan, where getting migration steps in one place and doing it in a systematic procedure.

This Plan should be more suitable for Medium and Small Business environments

Meeting these requirements you can install Exchange 2010:

# Exchange 5.5 Should be completely removed

# Windows Server 2003 native Domain Functional Level and Forest functional level

Domain Functional Level should be at least 2003 Native


How to Raise Forest Functional Level


# Exchange 2003 Server has to be in Native mode


Now you can install Exchange 2010

Step 1:

Installing Exchange 2010 Sp2 on Windows Server 2008 R2 Sp1 (Coexistence)


Step 2:

Creating Send Connector in Exchange 2010 to Send Mails to Internet


Step 3:

Configure Receive Connector in Exchange 2010 to receive Mails to Internet


Step 4:

Configure Outlook Web App, ActiveSync, Exchange Control Panel (ECP), Configure Outlook Anywhere


Configuring Certificates –

3rd Party –



Self-Signed –


Step 5:

How to Move offline address book from Exchange 2003 to Exchange 2010


Step 6:

Upgrading Email Address Policies and Address lists from Exchange 2003 to Exchange 2010



Moving Mailboxes from Exchange 2003 to Exchange 2010


Step 8:

Moving Public Folders from Exchange 2003 to Exchange 2010


Step 9:

Configure your firewall rules to Exchange 2010 Server (if no smart hosts used)

Public IP NAT to Exchange 2010 IP

If you’re using smart hosts like barracuda, Change it in the (Smart host) barracuda settings

Step 10:

Remove Recipient Update Service


Step 11:

Remove Routing Group Connector

Get-RoutingGroupConnector | Remove-RoutingGroupConnector

Say “Y” for Confirmation


Step 12:

Uninstall Exchange Server 2003

Open Add or remove programs – Remove Exchange 2003


If that fails

Remove Exchange 2003 manually


Great !!

You learnt the rapid migration Process from Exchange 2003 to Exchange 2010

Download the Rapid Migration Guide

Happy Migration !!


Satheshwaran Manoharan
Satheshwaran Manoharanhttps://www.azure365pro.com
Award-winning Technology Leader with a wealth of experience running large teams and diversified industry exposure in cloud computing. From shipping lines to rolling stocks.In-depth expertise in driving cloud adoption strategies and modernizing systems to cloud native. Specialized in Microsoft Cloud, DevOps, and Microsoft 365 Stack and conducted numerous successful projects worldwide. Also, Acting as a Technical Advisor for various start-ups.

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  3. Migration from one platform of Exchange Server to another is very tedious job and require strong technical skills. But you have mad it easy. Thanks for sharing this helpful post. It will help the Exchange Server administrators to perform quick migration.

    Some third party applications may also help to those users who are novice in this field or getting problem to migrate complete data. Here is one such popular application which deeply analyze the databases and then allow the users to easily migrate from one platform to another: http://www.serversdatarecovery.com/exchange.html

    It first fixes the corrupted items if it founds during the analyze process in the databases and after rebuilding the database, user can easily restore it to new platform.

  4. Hi Article for Migration 2003 to 2010 one Question which i want to ask should we migration or upgrade address after all mail box migration.

    • Yes,It’s required to Upgrade your Address lists after mailboxes are migrated over to the new server

      Both ways should work.

      It’s preferred to upgrade Address lists after moving mailboxes

  5. Hi Article for Migration from 2003 to 2010 Exchange is very good,I Would like to ask you question

    Is it required to upgrade to MIgrate Address list or GAIL after all mail Box Migration

  6. We have 9000 mail box we are migrate to 2003 to 2010. I want to know is it required to upgrade email group if yes please mention the command or process to upgrade

    Because users are facing issue when they send mail to any group 2003 exchange mail box user get the mail but 2010 are not getting when we readd they 2010 user get the mail .

  7. Wow, there is a lot of great info in here. I am about to do migration in two weeks so started researching and I’m glad I found this. Great job !!

  8. I don’t see instructions on how to configure a routing group connector between ex2003 and 2010. Also, can both OWA coexist during the migration ?

  9. Hi Satheshwaran,

    I’ve been reading your articles and following you post for long time. I will be doing migration from exchange 2003 to exchange 2010 during this weekend and little confuse when it comes to “internet Facing Server”. Could please help understanding it.

    RIght now i’ve exchange 2003(Computer name is MAIL and Domain name is XYZ.COM) running on windows 2003. I’ve installed new windows 2008 R2 (Computer name is SERVER and domain name is XYZ.com. Now i dont understand what should i enter in internet-facing server field?

    I’ll be waiting for your kind response.


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