Exchange 2010 CAS Array advice
I posted something a bit ago for those of you deploying Exchange 2010 CAS arrays and wanting to support RPC MAPI through the load balancer. Used in combination with the F5 Exchange 2010 Deployment Guide, this has us working well. I hope someone finds it useful!
I should point out that a similar approach to SNAT pool persistence also fixed some nagging issues with OpenText clients -- rolling SNAT IP addresses caused sessions to randomly invalidate.