Exchange is the "Killer app" for most organizations. Without e-mail, productivity slows and in some cases grinds to a halt. This is especially true for remote users whose only communications with the home office might be through email. Front-end servers are easily overloaded and with the growing popularity of remote access options such as OWA, OMA, RPC and EAS, load balancing front-end servers is starting to become more popular in an effort to increase performance and provide high availability. Many organizations cluster their Exchange back-end servers in an effort to provide high availability. This paper covers two methods a person can use to load balance the front-end servers in an effort to maximize performance and availability.
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