Eudora 6 Step 1

Select Options from the Tools menu.

Tools
   Options...

Eudora 6 Step 2

There are only 2 changes that you need to make within Eudora. Once is setup you will need to change the Mail Server (Incoming) and the SMTP Server (Outgoing) to both read localhost as shown below.
However. we recommend that your firstly follow the below steps to setup the New Account Wizard before making this change.

Copy (CTRL + C) your current "Mail Server (Incoming):" from the Getting Started category and Paste (CTRL + V) this information into the ISP POP3 Server field on the Geobytes " New Account Wizard" dialog.
Once your account is created you will need to set this field to read "localhost"

Copy (CTRL + C) your current "SMTP Server (Outgoing):" from the Getting Started category and Paste (CTRL + V) this information into the ISP SMTP Server field on the Geobytes " New Account Wizard" dialog.
Once your account is created you will need to set this field to read "localhost"

Copy (CTRL + C) your current "Login Name:" from the Getting Started category and Paste (CTRL + V) this information into the ISP POP3 User field on the Geobytes " New Account Wizard" dialog.

You will need to locate your Password (perhaps from an email from your ISP) for this E-mail account as Eudora prevents this password from being copied. If you do not know your E-mail account's password you may have to contact your ISP for it. Once you have your password, paste it in the ISP POP3 Password field on the Geobytes " New Account Wizard" dialog.

You can use the New Account Wizard to set your first Spamborder by specifying your Location