I am ready to build a new Exchange 2010 server on a network which currently has never run one. A question which has come up that I am not entirely sure what direction to follow is as follows.
Ideally, I would build the Exchange server on the Local network and create a Front End server in the DMZ with OWA, SMTP, POP3, IMAP etc access. But this system isn't not that big. I am looking at probably no more than 150 accounts in the life of the system. I would probably build a VM to run the Front End anyway, but it just seems like overkill on a system that size. I can point all of the internal clients to the Exchange box directly and allow mobile sync and OWA access via the Front End server but now we are looking at limited usage and probably bring it to a daily client activity level of about 50 accounts (on the Front End server) with the other 100 accounts being clients inside the network accessing only the Exchange server directly. Does standard practice dictate setup the ideal way? Or is it permissable to create firewall port forward rules to route the connections from outside the network to inside the network? Realy, overkill is not needed and the less setup that is required, the easier it is to maintain the systems. The safety of the system is the only thing which needs to be a design concern. -Heath
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