Step One:
First you need to download YPOPs. The latest stable version is YPOPs! 0.9.5.1 and you can download it here. There is a newer version available (0.9.6. Alpha 1) too, but it is still in the Alpha stage and contains bugs. Install and run YPOPs. The YPOPs icon will appear in the system notification area. You can access its settings (Image 1 - click on the image to enlarge it) by double clicking on the icon. Now let’s see how to configure Windows Mail to work with YPOPs.
Step Two:
Start Windows Mail and Go to Tools > Accounts. Click on ‘Add’. Select the type of the account as Email (Image 2) and click ‘Next’.
Enter the display name (how you want your name to appear in the ‘from’ field of the outgoing messages) as you desire and click ‘Next’.
Enter your yahoo email address and click ‘Next’ (Image 3).
In the next screen enter ‘127.0.0.1’ as the server name for both POP and SMTP servers (Image 4) and click ‘Next’.
The wizard prompts you for your username and password. Enter the required information and click ‘Next’. Check the box ‘Do Not download my e-mail at this time’ and click ‘Finish’.