You can access your email via POP with any modern email client or you can access it via the web using your web browser at http://mail.yourdomain.com/ - the choice is yours.
For email configuration on Outlook or Eudora :
SMTP : mail.yourdomain.com (port 25)
POP : mail.yourdomain.com (port 110)
We use SmarterMail 6.0 enterprise as our Mail Server.