We are using a simple desktop computer for the server. You may wish to use a designated "server" with the usual server features such as high speed 'hot swap' SCSI disk drives, RAID file system, and high speed CPU, However, these are not necessary for a mail server, which is limited by the speed of the internet connection. Also, 100% 'up time' is not necessary because a delay will not be noticed by the users. Choosing one of the following will cause a delay in our delivery.
We are an IBM 'Business Partner' and therefore would rather supply this brand.