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                  Make sure you have all of the following steps in place before you setup Exchange Server 2007 on Windows Server 2008 64-Bit.
For simplicity we are assuming you are setting up a small office where one machine will be used for both the Active Directory and the Exchange Server. This setup works just fine and reduces the number of machines to maintain. If you have a larger office you may want to consider separating the Active Directory machine and the Exchange 2007 Server. 
Install Windows Server 2008 64-bit version :-
Exchange 2007 is a 64-bit application and requires 64-bit versions of Windows Server 2003 or Windows Server 2008.  You should select a computer that is capable of running the 64-bit version of Windows Server 2003 or 2008.  For this example we will start with a clean installation of Windows Server 2008 64-bit version that has not had any roles installed.
After installing Windows Server 2008, we set the clock and the name of the server to be "EX2007".  At this point this server is configured to be a stand-alone computer with default settings.


Configure Your Static IP Address :-
The default installation of Windows 2008 sets your IP v4 and IP v6 addresses to use DHCP.  Since we will be configuring this computer to be a domain controller, you must change the IP address of the computer to be a static IP address.
To change your IP address, click on "View Network Connections" in the Server Manager screen. 
This will display the list of active network interfaces.

Highlight "Internet Protocol Version 4 (TCP/IPv4)" and press the Properties button.

Change the radio button to "Use the following IP address" and enter an IP address you want to use for this server.  In our example, we chose to assign this server the internal IP address "192.168.1.25".  We also have a firewall appliance that operates as a gateway at the IP address "192.168.1.1".
 
NOTE: It is important to include this computer in the DNS list.  You should list the IP address of this computer as the first entry in the list of DNS servers.  In the "Alternate DNS server" field, enter the IP address of a DNS server provided by your ISP.

Press OK to save your changes.

Now you will need to modify the support for IP v6.  If your network uses IP v6, then you will need to select "Internet Protocol Version 6 (TCP/IPv6)" and press the Properties button.  Enter a static address.  If you are not using IP v6, you can leave the IP v6 set to the default setting of DHCP.

NOTE:  Exchange requires that IP V6 be enabled.  Even if you do not use IP V6 you must leave it enabled.  During the setup of Active Directory, the Active Directory Setup Wizard will check that both IP v4 and IP v6 have static addresses as long as the IP v4 address is static you can continue the installation.  DO NOT DISABLE IP V6 or else the Exchange Hub Transport Service will not start.
At this point you should have all IP addresses on this server configured as static IP addresses.  OR you have the IP v4 address configured as static and the IP v6 configured using DHCP.  Press OK to save your changes and close the network connection screen.
Activate Auto Update :-
The next step in making this server a domain controller is to activate auto update.  Active Directory will not install until this computer has auto updates active.  To activate auto updates click on the link "Configure Updates".   Then select the option to have Windows automatically install updates.   At this time Windows will download updates and will most likely need to reboot your computer.  Allow the updates to be applied and the computer to be restarted until all updates are applied before installing Active Directory.  You do not want to be in the middle of installing Active Directory when an auto update needs to reboot your computer.

Add role - Active Directory Services :-
The process of installing Active Directory consists of two steps, the first step is to install Active Directory and then you will need to configure your Active Directory.  Once this is complete your Windows Server will now be a domain controller.
Step 1 - Install Active Directory
At the Computer Management Screen press the "Add Roles" link.  At the Select Server Roles dialog check/tick the option "Active Directory Domain Services" and press Next.
Active Directory Domain Services will present information about the changes it will make to your server.  Review this information and press Next.
Now the installation will scan your configuration and inform you if there are any pre-requisites that you have not fulfilled.  If the Active Directory Installation presents an errors, correct these at this time and then repeat the installation.  Once the Setup program indicates that you have met all pre-requisite, then  press the Install button to start the installation process.
The setup program will now install Active Directory on your Server.
When the installation is complete you should see a message indicate "Installation Succeeded", press Close to return to the Server Management Screen.
Step 2 - Configure Active Directory
At the Server Management screen you should now see that you have 1 role installed.  The Active Directory Domain Services may indicate that it is installed but there are errors.  This is because the software is installed but not configured.
To configure Active Directory click on the line under Roles labeled "Active Directory Domain Services".  The Server Manage will show you a page about the status of the Active Directory Role.
Click on the link "Run the Active Directory Services Installation Wizard (dcpromo.exe)" and the Active Directory Domain Services Installation Wizard will appear, press Next.
The Installation Wizard will present information about the version of Active directory, press Next.
Since we are assuming this Exchange Server will be the first Domain Controller, we chose to create a new domain in a new forest.  Press Next.
Enter the name of your domain.  The domain name you enter here is the domain name that Exchange will associated with all of your email.  If you use a hosting company to host your Internet Domain, then you may want to enter the name of your Internet domain with ".local".  If you host your own Internet Domain then you would enter your domain name here.
In our example we are assuming that IGetMail.com is hosted at an Internet Hosting Company.  Since we do not host IGetMail.com on this Exchange Server, we will use IGetMail.local to indicate our internal domain for IGetMail. 
NOTE:  Once you enter your domain name it is very hard to change it in the future, so you should take great care when enter this name. 
Press Next once you have decided on the name of your internal domain, that will be your Active Directory Domain and the domain serviced by Exchange.
Next the Installation Wizard will ask you about compatibility.  If you plan to have domain controllers running various versions of Active Directory then you will want to chose a function level to include the lowest version of Windows that you are using for domain controllers.  Press Next.
Next you will be asked a similar question which is at the domain level instead of the forest level on the previous screen.  You should follow the same approach and include the function level to include the lowest version of Windows you plan to use for domain controllers.  Press Next.
The first Domain Controller needs to have a DNS server running locally.  The optimal location is to start out with having the installation wizard install the DNS server locally.  Also it will automatically make this computer a global catalog server.  Press Next.
You can specify where you want Active Directory to store its data.  If you only have on e drive in your Server then use the defaults.  If you have multiple drives, you can select which drive to use.  Press Next.
Should you need to restore Active Directory in the event of a hard drive failure you will need to boot your Server into a special mode called "Directory Restoration Mode".  Should you need to boot your computer into this special mode, you will need to use a special password just for this restoration.  You can define this password at this time.  NOTE:  This password is different than the administrator account and if you change the administrator password this password will not change.  So you will need to store this password forever in a safe place.  Press Next.
Now the Installation Wizard will summarize the configuration that it is about to create.  Press Next to start the process of configuring your new Domain Controller.
The Installation Wizard will show its progress as it configures your Server.   This will take a long time.
When the installation is complete, you will be shown a final screen.  Press Finish.
Then restart your computer.
After restarting your computer Windows should show you the Server Manager.  You should see on the Server Manager screen that you have Active Directory and DNS Server roles installed.  Also the process of installing Active Directory will add the features "Group Policy Management" and "Remote Server Administration Tools".
Add role - Active Directory Lightweight Services
Now that have your Server configured for Active Directory, Exchange requires that you add the Lightweight Service.  NOTE Exchange only requires that the Lightweight services are installed but does not require the services to be configured. 
Click on the link "Add Roles" and then select to add the role "Active Directory Lightweight Directory Services" and press Next.
The installation wizard will inform you that it will make the following modifications to your server, press Next.
Then the installation wizard will confirm your intention, press Install to begin.
The installation wizard will show its progress.
And finally when the role has been installed, the installation wizard will show its results.  Press Close and then proceed to configure this newly installed role.
At this point your Server Manager should show you that you have the Active Directory Lightweight Directory Services installed.  This is sufficient for Exchange.  If you want to create LDS instances you are welcome to but that task is not required by Exchange.
Add feature - Windows Process Activation Service
The next feature that Exchange needs installed sis the Windows process Activation Service.  To install this feature click on the link "Add Features".
At the Select Features screen, check/tick the feature "Windows Process Activation Service".  Then select the items under this service and press Next.
Confirm your selections and press Install.  Windows will now install this feature and when it is complete, press Close to return to the Server Manager.
Add role - Web Server (IIS)
The next Role that Exchange needs installed is the Web Server IIS.  To install this role, at the Server Manager click on "Add Roles".
At the Select Server Roles screen, check/tick the role "Web Server (IIS) and press Next.
The Web Server IIS installation will present information about what it will perform, press Next.
Exchange requires that several additional services be added to the default settings in IIS. 
Check / Tick the following additional service in additions to the default settings:

• Security - Basic Authentication
• Security - Windows Authentication
• Security - Digest Authentication
• Performance - Dynamic Content Compression
• Management Tools - IIS 6 Management Compatibility (include all items under this service).

Then press Next.
The Web Server installation wizard allows you to verify your selections, press Install to begin.
The installation wizard will now install IIS on your Exchange Server.
When IIS is installed, press Close to return to the Server Manager.
Add feature - PowerShell
Now you are ready to install the last feature that Exchange requires as a prerequisite.  At the Server Manager click on "Add Feature".
Select the Feature "Windows Power Shell" and press Next.
At the installation confirmation screen, press Install to begin the process of installing this feature.  When the Power Shell feature is installed press close to return to the Server Manager.
Your server should now be ready to install Exchange 2007.
Roles / Features NOT to install
Exchange has a requirement to use its own SMTP service and not the SMTP Role that is built into Server 2008.  As a result you must not install the SMTP feature from the Server Manger.  This will be installed by Exchange.  Note that the Exchange Setup wizard will issue a warning that the SMTP services are not already installed, yet if you install the Windows 2008 SMTP feature, the Exchange Setup will consider that an error.


Installing Exchange Server 2007
You are now ready to install Exchange Server 2007.  Run the Exchange Server 2007 setup and click on the link to Install Microsoft Exchange Server 2007 SP 1.
The Exchange Server 2007 setup wizard will present information about the task it will perform, press Next.
Accept the license agreement and press Next.
You can choose to participate in error reporting if you wish, press Next.
Since this is Exchange Server is intended to be our only Exchange server we will chose the typical installation which installs all of the components to make this Exchange receive, store and send email.  Select Typical Exchange Server Installation and press Next.
Enter the name of your organization, typically this corresponds to your company name or domain name.  Press Next.
If you intend to use Outlook 2003 clients to connect to this Exchange Server, then chose Yes to provide compatibility with these clients, then press Next.
Exchange will now verify that all prerequisites are met.  If there are any items that Exchange needs, it will inform you at this time.  If the prerequisites have all been met, then press Install to begin the installation.
When the Exchange Server 2007 installation wizard completes, it will show the results of installing each component within Exchange Server.  You should see all components with a green check mark.  Press Finish and your Exchange Server should now be ready to use.
Since Exchange Setup modifies your Active Directory settings, it is a good idea to reboot the server once the installation is complete.
Allow IGetMail access to your Exchange Server
IGetMail Version 3.x instructions:
When you are running IGetMail version 3.x you can instruct IGetMail to send email to your Exchange server using an authenticated user or anonymous access.
Authenticated User Access - With this method you instruct IGetMail to use a specific Exchange user account to connect to the Exchange Server.  Once connected through this account, IGetMail can send email to any of your Exchange user accounts.  In order to use this method, the Exchange user account must be a member of the Exchange Server Group within Active Directory.
To setup Authenticated Access:

1. Open the Exchange Management Console
2. Expand "Server Configuration"
3. Select "Hub Transport"
4. In the middle section of the Management Console you will see the list of Receive Connectors.

1. Right click on the Receive Connector "Default ServerName" and choose Properties
2. Select the "Authentication" tab.
3. If you do not have an SSL certificate from a third party SSL provider, then Uncheck / Untick the option "Offer Basic authentication only after starting TLS".  By default Exchange will not allow users to authenticate until you have an SSL certificate.  Unchecking / Unticking "Offer Basic authentication only after starting TLS," allows Exchange to offer Authenticated login over standard SMTP.

When you configure IGetMail you will need to specify a Windows user that meets these two requirements.

• The Windows account must have a mailbox in Exchange
• The Windows user must be a member of the group "Exchange Servers"

Commonly the Administrator account does not work because it does not have a mailbox and a standard Windows account is normally not a member of the Exchange Server group.  To solve this you can either give the administrator a mailbox or in our example below we created a Windows user, made this Windows user a member of the "Exchange Servers" groups, and created a mailbox for the user.  In our example this new Windows user is named "IGetMail".

1. Run Active Directory for Users and Computers.
2. Select the Users group in the column on the left.
3. Right Click and add a new user.  In our case we choose to name this new user "IGetMail" since we will use this Windows user account to route the email through as the email is delivered to all of the other users within Exchange.

1. Select the Window user account that you want to have IGetMail use to connect to your Exchange Server.  Right click on the user name and choose Properties.
2. Go to the "Member Of" panel.
3. Press the Add... button.
4. Add the Group "Exchange Servers" to make this Windows account a member of the "Exchange Servers" group.  This will grant this Windows account the rights to route email to other users.  This is needed for IGetMail to route email to your users.

Next we need to add a mailbox to the Windows account that IGetMail will use for authentication.

1. Run the Exchange Management Console
2. Expand "Recipient Configuration"
3. Select Mailbox to show a list of existing Exchange Users
4. Right Click on "Mailbox" under "Recipient Configuration" and select New Mailbox or Click on New Mailbox in the Actions Column on the right hand side.
5. Add the Windows account that you want IGetMail to use to the list of Exchange users. In our example below we have added the account "IGetMail" to the list of Exchange Users.

Now Run IGetMail

1. At the Status Panel, press the "Modify SMTP Settings" button.
2. Check / Tick the option "Authenticate as - "
3. Enter the Name of a Windows User Name that you want IGetMail to use to connect to the Exchange Server.  This Windows account must have a mailbox in Exchange and must be a member of the "Exchange Serves" group.

IGetMail is now configured to send email to your Exchange Server. 

To Setup Anonymous Access:
Anonymous access - With anonymous access you can allow anyone to send email to any of your users.  In this case IGetMail only has to connect to the Exchange Server, it does not need to log into a Windows Account.
To configure Exchange to allow any user to route email perform these steps:

1. Open the Exchange Management Console
2. Expand "Server Configuration"
3. Select "Hub Transport"
4. In the middle section of the Management Console you will see the list of Receive Connectors.

1. Right click on the Receive Connector "Default ServerName" and choose Properties
2. Select the "Permissions Group" tab.
3. Check / Tick "Anonymous Users"
4. Save your changes.
5. Now anyone can connect to the Exchange Server and route email to any user.

IGetMail Version 1.x and 2.x instructions:
When you are running IGetMail Version 2.x and 1.x you need to allow anonymous SMTP connections for your server.
Method 1 - Run the Exchange Management Console.  Expand the Server Configuration and select Hub transport.  In the lower half of the screen under the tab "Receive Connectors" right click on the connect labeled "Default <Name Of Your Server>" and select Properties.  At the Properties for the default server select the Permissions Group tab.  At the Permissions Group Tab, check / tick the option Anonymous and save your changes.
 
Method 2 - Run the following management shell command (note this is the Exchange Management shell and not the PowerShell):

Set-ReceiveConnector -Identity "Default <ServerName>" -PermissionGroups "AnonymousUsers"
Where you would replace <ServerName> with the computer name of this server.

Adding E-Mail Users :-
Run the Exchange Management Console.  Expand the item "Recipient Configuration" and select Mailbox.
Click on the option "New Mailbox" in the right hand panel under the Actions column heading.
Proceed through the wizard to create each of your new users.