To access the VPOP3 settings, you need to use a web browser to go to http://<IP address of VPOP3 computer>:5108/admin/index.html. If you can't remember the full URL, you can go to http://<IP address of VPOP3 computer>:5108 and then click on the Admin menu item after logging in as an administrator.
There are a couple of shortcuts for this on the VPOP3 computer itself. You can right-click on the Status Monitor icon in the Windows notification tray and choose VPOP3 Settings from the menu, or you can go to Start -> Programs -> VPOP3 -> Configure VPOP3. Both of these options should start your default web browser and go to the above URL. (If they don't start your web browser automatically, make sure that Windows has its default web browser configured correctly).
Note that you can access the VPOP3 settings using the URL from anywhere which has network access to the VPOP3 computer, as long as firewall & Internet security software allows it, and you have not restricted access from within VPOP3 itself.
Once you have gone to the URL, it should ask you to login. Use the username & password for an administrator user to log in. These are initially set during installation, but can be easily changed after installation. Make sure you do not lose your username & password! It is possible to reset the password, but you may need to get into the settings in a hurry, and resetting the password takes time.
At login you have the option to remember the password. This is done by the web browser, not by VPOP3, so if you then use that same web browser it should automatically log you in. If you explicitly log out of the VPOP3 settings or delete the cookies in your web browser, it will forget the details, so you will have to log in again.
The ":5108" after the server address in the URL indicates the TCP port which is used. By default VPOP3 puts its Webmail & admin web service on port 5108, which is not a standard port for web access, so you need to specify the port explicitly. The reason VPOP3 does this is to avoid conflicting with any other web server which may be on the same computer as VPOP3.
If there is no other web server on the same computer as VPOP3, it is perfectly acceptable to change the VPOP3 configuration (Services -> WebMail Server -> General tab -> Edit Bindings) to have VPOP3 listen on the standard web port 80. In that case you wouldn't need to specify the port number in the URL, and could just use http://<IP address of VPOP3 computer>. However, for the purposes of this guide, we will assume that you have left it using the default port of 5108.
n.b. If you have changed the port and need to contact us for technical support, make sure you let us know that you have changed the port if you want us to give you step-by-step instructions, otherwise we will assume you are using the default port, and our instructions may need modifying before they can be used.