Ok...I am about to set up a network for a very small company with a very limited budget. I am going to deploy Small Business Server 2003 and XP Pro.
Currently the company has a website(example.com) that is hosted by an external hosting company and retrieve their emails through the hosting company. They access the internet via dial-up modem. When I upgrade their network, they want to go to a cable modem from a local ISP.
I need their internal Exchange Server to be able to retrieve emails that are sent to firstname.lastname@example.org. How would I do this? Is this recommended since cable modems change their IPs every so often?