Originally posted by: dphantom
Below is a good basic link to installing a new Exchange 2003 server.
There are some considerations to think about and my list is far from inclusive.
Link
Current state/level of AD - run dcdiag and netdiag
Will you need front-end server for OWA
SSL for OWA - not necessary but I really, really recommend it
Configure firewall to allow inbound traffic to your frontend server or backend if no frontend
How will you handle migrate users pst files??
DNS changes necessary - who hosts your MX record
Do you have a public IP address available
Just a few things that popped into my mind.