Example Two

In this scenario, the small company (two partners) that setup the previous email server need to expand. They used the existing computer running Windows 2000 Professional as a gateway to the Internet using the ICS (Internet Connection Sharing) feature of Windows 2000 and added a second computer to their network.. See the Windows 2000 documentation to see how this is done. Search the help under Internet Connection Sharing. There is an article here that talks about ICS from Microsoft's Web site:

http://www.microsoft.com/TechNet/cableguy/cg0301.asp

The general concept for ICS is that the local network or LAN (Local Area Network) use the address range of 198.168.0.0 through 192.168.0.255. Both computers have access to the Internet through the single computer directly connected to the Internet. It acts a gateway or router. The email server can now service both computers and all the users on the LAN.

Install the SMTP Server

You can use the instructions shown on the Installation page to install the SMTP server.

Configure the SMTP Server

The only thing that changes for the SMTP server is that now computers from the LAN will want to use the SMTP server connected to the Internet to send their messages. In other words, they will want to relay their messages through the mail server. In the previous example we did not allow this to happen. There are a couple of options to let the computers on the LAN relay through the SMTP server. Before you allow relaying, you should check with the Microsoft documentation to be sure that you know how this works.

In this example, we know that our local computers have an IP address in the range of 192.168.0.1 to 192.168.0.254. This is a private address range that ISC allocates for the computers on a LAN. That is, the IP address will not (cannot) be used on the Internet. If that is the case, we can allow computers using those addresses to relay through our SMTP server as we know they will be coming from our LAN and not the Internet (WAN).

Open the Internet Services Manager applet from the Control Panel, click on the Default SMTP Virtual Server and select Properties from the Action menu. Click the Access tab, click the Relay button. Click the Add button, select Group of Computers and type in the Subnet Address 192.168.0.0 and the Subnet mask 255.255.255.0.

Install the POP3 Server

You can use the instructions shown on the Installation page to install the POP3 and POPAgent services.

Configure the POP3 Server

There is nothing to change in the POP3 configuration. Set it up the same as Example One.

Create User Accounts

For all the users that want to use the email servers, you must create an account for them on the computer that is running the email server in addition to any accounts they have on other computers. You may or may not want to make the username and passwords the same as the accounts they have on the other computers, but it might be a good idea to keep them syncronized.

Setting up an eMail Client Program

Because this is a Windows 2000 system, we'll use Outlook Express for the client program to send and receive email messages. However, because this is a standard email server setup, you can use any email client program, including Netscape Messenger or Eudora.

From either computer, logon to an account that you setup previously - or your own account. In Outlook Express, the Internet Connection Wizard should automatically start. if not, pick the Tools menu, and select Accounts. Click the Add button and select Mail. In the Internet Connection Wizard, fill in the name you want to appear on the email messages and click Next. Select the I already have ... option and fill in the new email address. This would be username@somedomain.com where username is the logon name of this account and somedomain.com is your domain name. Click the Next button.

For this example, the email server names are both mail.StuffForSale.com. See the discussion on the Trouble Shooting page about computer names. The incoming mail server is a POP3 server. Click the Next button. The account name is the logon name on and the password is whatever you assigned. Click the Next button. and then the Finish button to finish up. You can repeat this for other accounts that your are setting up o either computer.

Please remember, the domain name we are using (StuffForSale.com) is just an example. You should substitute the proper domain name for your system.

That's it for this example. Click the Continue button to see some trouble shooting tips.