1. Open Eudora

2. Click on Special then Settings....

3. Click on Getting Started Enter in
Username: username@myosseo.com
Mail Server: mail.myosseo.com
Real Name: your name
SMTP Server: mail.myosseo.com
Return address: username@myosseo.com

4. Click on Sending Mail
Return Address: username@myosseo.com
SMTP Server: smtp.myosseo.com
Check Allow Authentication