Your e-mail accounts are configured through cPanel .
To configure your e-mail program to fetch your e-mail use the following information in outlook or other email programs:

POP3 (incoming) mail server: mail.yourdomain.com

SMTP (outgoing) mail server: mail.yourISP.com

If you have problems sending emails the most likely reason for that would be that your ISP has blocked the outgoing smtp port to other servers,
which means you will have to use your ISP smtp server. This is especially appropiate if you are a bigpond or optus customer
Here is a link to configure the BigPond mailserver http://www.bigpond.com/Help/Settings/EmailSettings/BasicEmailSettings/default.asp

Please be aware, when you set up outlook that your UserID is your full email address
The url for your online webmail is yourdomain.com/webmail
Please be aware that your email will not work until your domain resolved to our servers.