I work for an ISP in Tech support and 80% of our business callers call in regard to problems with exchange servers, one of the most convincing arguments to maintain your current system is the potential time wasted by staff calling support lines and the limited ability of ISP's to actually assist with this problem. Having also administered network's the stability of Linux has proven itself to me where as Windows is a plauge on the earth.:)
I work for an ISP in Tech support and 80% of our business callers call in regard to problems with exchange servers, one of the most convincing arguments to maintain your current system is the potential time wasted by staff calling support lines and the limited ability of ISP's to actually assist with this problem. Having also administered network's the stability of Linux has proven itself to me where as Windows is a plauge on the earth. :)