We have recently embarked on a cost savings project that entails locally housing and servicing our email servers in the U.S. We had several local servers in the ASIA and European regions that were moved to the headquarters office in the U.S. Obviously we knew that the performance would be somewhat degraded because of the move from a LAN attached server to a WAN attached server. We are receiving several complaints from our clients that the speeds to open an email are extremely slow. An email with an attachment is almost "snail mail". Has anyone else experienced moving from a LAN email service to providing the service over the WAN? What are some of the expectations and how can you address the slow downs. The current WAN network consists of frame relay, leased line, and VPN connections into the headquarters office from our remote sites. Are there any performance enhancing capabilities in Exchange or are we stuck with the latency of the WAN network?