I have been with Ms Exchange 2003 for about one year presently managing about 70 users. Everything goes smooth. Now our management looks for a mailing solution for about 750 users for a newly bought firm .
Could you please help me in replying to the following questions and the implement the Ms Exchange as the mailing solution for the 750 users
1. What is the type of hardware should i look for
2. Do i need to stick with clustering for load balancing and failover
3. What do i suggest the end user to use i.e Imap or POP3 or exchange protocol for the email client configuration