How to configure Exchange Server 2003? I dont have much idea about it. So Please explain me from the very begining to end. My company name is EBMC. My domain name is EBMC.AE.and mail server is MAIL.EBMC.AE . I have 40 email accounts . I have 3 branches. I am planning to put my server in one location. So how can my server handle the accounts of other branches? What kind of connectivity should i take? I cannot go for Leased line. It will be very expensive. i will go for ADSL 512kb connection in each branch. Can firewall help the connectivity? What kind of firewall should i go for or which brand? Please help me.