Step 1: From the Tools choose Options. That brings up the window where you put in your mail settings.

Step 2: Click on Getting Started and enter the following from your Account Information:
Real name: your name
Return address: your Email Alias or Email/Reply-To Address from your Account Information
Mail Server (Incoming): mail.yourdomain.com
Login Name: your Email Account/POP Username from your account information
SMTP Server (Outgoing): mail.yourdomain.com
Uncheck "Allow Authentication"

Step 3: You're Done! You have set up your Eudora Email program to check your email.