My-Technet

Prerequisites:

• Exchange Org must be set to “Native Mode” no pre-Exchange 2000 servers.
• Exchange 2000 servers must be at Service Pack 3.
• Exchange 2003 servers must be at Service Pack 2.
• Active Directory Schema Master must be a Windows 2003 DC with Service Pack 1.
• At least one Global Catalog in each site, where an Exchange 2007 Server will reside, must be Windows 2003 with Service Pack 1.
• Active Directory Domain Functional Level must set to Windows Server 2000 or Windows Server 2003.
• Verify the existing Exchange 2000/2003 Server does not have a SMTP Smart Host configured.
• Run Exchange Best Practices Analyzer (ExBPA) to verify installation requirements.

Required Software:

• MS .NET Framework 2.0 or 3.0
• MMC 3.0
• Windows PowerShell 1.0
  • Required Windows Components:
    • Mailbox Server
      • Enable network COM+ access
      • IIS Service
      • WWW Service
    • Client Access Server
      • WWW Service
      • RPC over HTTP
      • ASP .NET v2.0
    • Hub Transport Server
      • SMTP and NNTP must NOT be installed

Prep Active Directory for an Exchange 2007 Server:

• From the Exchange 2007 media run Setup.com /PrepareLegacyExchangePermissions. This will allow the Exchange 2007 Server to coexist with the Exchange 2000/2003 Server.
• 
• Next run Setup.com /PrepareSchema.
• 
• Next run Setup.com /PrepareAD.
• Note: Running Setup.com /PrepareAD before /PrepareLegacyExchangePermissions or /PrepareSchema will automatically run /PrepareLegacyExchangePermissions and /PrepareSchema.
• 

Start the Exchange 2007 Install:

• Run Setup.exe.
• 
• Click Install Microsoft Exchange.
• The Introduction Page will be displayed. Click Next.
• Accept the License Terms. Click Next.
• Enable/Disable Error Reporting. Click Next.
• Select the Installation Type. (This example used the Typical Install)
• Specify the Installation Path.
• 
• Click Next.
• Browse to the Exchange 2000/2003 bridgehead server.
• 
• Click Next. Setup will begin installing. . .
• Setup completes successfully.
• 
• Click Finish.

Replicate Public Folders:

• Open Exchange 2000/2003 System Manager.
• Expand Admin Groups – First Admin Group – Folders – Public Folders
• 
• Open the property page of each public folder, then click the Replication tab. Add the Exchange 2007 Server to the replica list.
• Note: Schedule+ Free Busy or Offline Address Book do not need to be replicated. This has been done automatically.
• Replication could take up to 72hrs.
• 
• When the folders have replicated. Remove the old Exchange 2000/2003 from the replica lists.

Configure Exchange 2007 for Inbound Mail:

• From the Exchange 2007 EMC. Expand Server Configuration – Hub Transport. Go to the Properties of the Default <ServerName> receive connector.  Click the Permissions Group Tab. Enable Anonymous Users.
• 
• Click OK.

Configure Exchange 2007 to Send Mail:

• From the Exchange 2007 EMC. Organization Config – Hub Transport. Verify the existing Send Connector has been configured correctly to send outbound mail.

Migrate Mailboxes to the Exchange 2007 Server:

• Use the Exchange 2007 EMC to migrate mailboxes from the Exchange 2000/2003 server to the Exchange 2007 server.

Reconfigure Firewall to point to the new Exchange 2007 Server:

• Test client access to Exchange 2007 server.
• Verify
  mail flow.
• Verify public folder access.

Remove Legacy Routing Group Connector:

• From the Exchange 2000/2003 server expand Admin Groups – First Admin Group – Routing Groups – Connectors. Right-click the Routing Group Connector and select Delete.
• 
• From the Exchange 2000/2003 server expand Admin Groups – Exchange Admin Group (FYDIBOHF23SPDLT) – Exchange Routing Group (DWBGZMFD01QNBJR) – Connectors. Right-click the Routing Group Connector and select Delete.

Decommission the legacy Exchange Servers:

• Remove Recipient Update Services.
• From ADSIEdit – Configuration\Services\Microsoft Exchange\<Org Name>\Address Lists Container\Recipient Update Services\
• Right Click – Delete – “CN=Recipient Update Service (Enterprise Configuration)”
• Uninstall Exchange 2000/2003 Server. (May be prompted for Exchange 2000/2003 CD)
• Note: Per Microsoft. Do not delete any legacy administrative groups that belonged to Exchange 2000/2003. LegacyDNs still point to the legacy Exchange 2000/2003 Admin Group.