This topic describes the Exchange services publishing deployment options that are available when using Forefront Unified Access Gateway (UAG). You can publish one or more Exchange mail services via a single Forefront UAG portal, thus providing users with a single entry point to multiple Exchange services.

Forefront UAG enables two deployment scenarios for your Exchange services:

When you publish OWA via a Forefront UAG portal, you can select to apply one or both of the following options:

For deployment instructions, see Publishing Exchange services scenarios.

Supported Exchange versions

Forefront UAG supports publishing the following versions of Microsoft Exchange Server:

  • Exchange Server 2010. Forefront UAG Service Pack 1 also supports Exchange Server 2010 Service Pack 1

  • Exchange Server 2007

  • Exchange Server 2003

In addition, Forefront UAG SP1 supports coexistence topologies where different Exchange versions are simultaneously deployed in organizations. For example, when an organization is moving users from Exchange Server 2007 to Exchange Server 2010, Forefront UAG SP1 supports publishing OWA for both versions during the transition period.

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