About Application Protocols, Authenticated Connections, and Domain Controllers : About MAPI settings
  
About MAPI settings
MAPI settings are under Optimization > Protocols: MAPI.
Enable MAPI over HTTP Optimization
Enables bandwidth and latency optimization for the MAPI over HTTP transport protocol. You must also create an in-path rule using the Exchange Autodetect latency optimization policy to differentiate and optimize MAPI over HTTP traffic. Configure on client-side appliances.
About MAPI
About Outlook Anywhere
About transparent prepopulation
Viewing MAPI connections