I have inherited a very messy and un-maintained Windows network. (You should see the Event Logs!!!)
My experience is strong with 2003, but much less so with 2007.
The company has an Exchange 2007 hub and edge server, both installed on 2003 R2. With around 20 employees, I'm doubting whether we need the Edge Transport server. (I'm trying to optimize our network by removing superfluous servers and network equipment.)
Strangely, both have a Public and Private network adapter. (Do external devices (i.e. smartphones, iPads, etc.) connect to the Edge or Exchange server?)
I'm considering removing Edge from the mix and having the Exchange server handle mail directly.
Staff use OWA, Android and iOS devices for external email access.
My question: What technical and non-technical considerations should be had before removing the Edge server?
(Should I decide to remove the server, I'll ask a new follow-up question for the most direct and comprehensive set of instructions for doing so.)