Hello Guys... firt of all i want to introduce my self as a new member,my name is Made from Bali,Indonesia..now im workin in jakarta as system engineer(fresh graduate acctually),iam really interest to learning exchange mail server. my question is if i want to learn exchange in my house..how many PC needed for simulation?and what version should i learn first..thank you in advance cheer Made -- "Play Ur Own Rule..."