OMA and ActiveSync can be enabled in an Exchange organization relatively easily: All
that??™s required is that a box be checked. RPC over HTTP access is more complex, however,
and is described in the upcoming section of this chapter, titled ???Configuring ISA Server to
Secure RPC over HTTP(S) Traffic.???
Specific requirements to enabling these types of mail access mechanisms must be taken
into account. Getting a better understanding of how these access methods can be secured
with ISA is therefore important.
348 CHAPTER 13 Securing Messaging Traffic
Enabling and Supporting OMA and ActiveSync on an Exchange 2003
OWA Server
Enabling OMA and ActiveSync is a relatively straightforward process, but one that requires
that certain special steps be taken in particular circumstances. Particular attention needs to
be taken when SSL is used and when Exchange front-end servers are not. First and foremost,
the Exchange Mobile Services must be enabled in an Exchange organization.
Enabling OMA and ActiveSync in Exchange System Manager OMA and EAS can be enabled
in an Exchange organization by an Exchange administrator via the following procedure:
1.
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