+ 0 Votes SBS CG IT 6 years ago you don't mention how many users you have. This is an important consideration when evaluating where the SBS server has sufficent resources for the # of users you have. Exchange is also another are that can cause poor network performance. If you installed exchange with the default values, again, the SBS server may not have sufficent resources [memory, processor and hard disks] to accomodate the # of users you have. you can have 2 exchange servers on a SBS network, however you have to manually configure them to make them work properly. The wizards won't work with 2 Exchange servers in a front end back end configuration.