With the mail server running on a computer on the internal network behind WinProxy, it will operate through WinProxy for firewall protection and dialing services.

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Below is an example of the mail entries required when running an internal mail server.

Internet Service Provider/Internet Mail Server Settings:

1.	SMTP Server:	204.56.168.1
2.	POP3 Server:	204.56.168.2
3.	DNS Search:	204.56.157.10

The IP address(es) of your ISP's DNS servers. These are often given as the primary and secondary DNS servers. You will use the IP address of the primary DNS in the Properties Wizard. As a last resort, if you know the domain name but not the IP addresses of your ISP's DNS servers (and can not obtain them), WinProxy can find the IP addresses. In WinProxy, click on File ==> Advanced Properties ==> Protocols ==> DNS Setup ==> Find_My_Name_Server!!

Address This can be either the numeric IP address or the name of your ISP's SMTP server. This is the address of the server to which you send mail. It will look something like this: smtp.myisp.com.

Address This can be either the numeric IP address or the name of your ISP's POP server. This is the address of the server from which you have been getting your mail. It will look something like this: mail.myisp.com.
NOTE:- At many ISPs the SMTP and POP servers are at the same address; at some they are not.

Your ISP will assign you either:-

1. a static IP address, which means your IP address to your external connection will remain the same with every new connection you make to the Internet, or
2. a dynamic IP address, which means that your IP to your external connection will change every time you make a connection to the Internet.

WinProxy works with both types of IP addresses from your ISP because WinProxy is configured to use the internal network card that connects to the rest of your local network (so it does no matter whether your external IP address is assigned dynamically or if it is static). This is the same reason why WinProxy works with any kind of Internet connection. WinProxy does not (and should not) be configured to use your external network connection. Windows takes care of redirecting all network traffic bound for the Internet to your Internet connection.

Below is the information you will need for your internal network card after you have added the TCP/IP protocol to it.

Your WinProxy computer must be assigned a static (i.e. fixed) IP address. Your client computers, unlike the WinProxy computer, can either be:-

1. assigned a static (i.e. fixed) IP address, or
2. assigned a dynamic IP address from a DHCP server.

The IP address is a 32-bit address, subdivided into four fields. It is a binary number, but usually written in decimal form, e.g. 222.222.222.222. Each field can have a value from 0 through 255. However, since the end values are used for special purposes, the actual range available is from 1 to 254. In other words, when entering an IP address, use only members between 1 and 254 in the last field.

Associated with the IP address is the subnet mask. The mask tells the computer which part of the address is unique to the machine, and which part is the general network address. For most simple networks the subnet mask of 255.255.255.0 is the best and easiest choice. When you use this mask, the numbers in the final field of the IP address are unique to each computer and the preceding three fields define the network address.

Address(es) The IP address(es) of your ISP's DNS servers. These are often given as the primary and secondary DNS servers. You will use the IP address of the primary DNS in the Properties Wizard. As a last resort, if you know the domain name but not the IP addresses of your ISP's DNS servers (and can not obtain them), WinProxy can find the IP addresses. In WinProxy, click on File ==> Advanced Properties ==> Protocols ==> DNS Setup ==> Find_My_Name_Server!! button.

The host name is the computer's name. This is a name you assign to the computer (each computer on the network should have a unique name). Avoid punctuation marks.

If you do not know a computer's name click on Start ==> Settings ==> Control Panel ==> Network ==> the 'Identification' tab.

The domain name can be your ISP's domain name, but it is better to use our own. Feel free to make one up (e.g. fred.com, suzie.org). The name does not need to be officially listed with any Internet bodies- since it is on your local, private network. It is invisible to the rest of the world. All of your computers should have the same domain name, and because of the way DSN lookups are made it is best if you have a .com or other standard domain name on the end.

WinProxy Mail Settings :

1.	Mail Host IP (SMTP):	204.56.168.1
2.	Mail Proxy Port:	25
3.	POP3 Proxy IP:	204.56.168.2
4.	POP3 Proxy Port:	110
5.	Incoming Proxy for SMTP:	Enabled
6.	Internal Server IP:	90.0.0.3
7.	Internal Server Port:	25

Mail Server Settings :

1.	Mail Host IP (SMTP):	90.0.0.1
2.	Mail Proxy Port:	25
3.	POP 3 Server IP:	90.0.0.1
4.	POP 3 Proxy Port:	110

NOTE: Some mail server will not work with a numerical IP address, but will work using the NetBIOS name of the computer. The NetBIOS name can be found NetBIOS name can be found at Control Panel => Network => Identification => Computer Name.

Client Computer Mail Settings :

1.	Outgoing Mail Server:	90.0.0.3
2.	SMTP Port:	25
3.	Incoming Mail Server:	90.0.0.3
4.	POP3 Port:	110