In this article, I will be showing how do we make use of ISA 2006 to achieve Autodiscover function for multi-tenant infrastructure.

What will happen if we do not do this?

The outlook 2007 users will get security prompt about the certificate on the ISA server whenever they perform an auto profile configuration and offline address book download.

In this article, I am going to go through the configuration of ISA to work with OWA and Outlook anywhere for Exchange 2007.

On your ISA server, open up the management console and click "Publish Exchange Web Client Access"

We create a rule for OWA 1st.

After completing the configuration of part 1, your enviroment is ready to procedure with mult-tenant configuration.

As for now, any account that created in either OU are able to see each other. that is fine for now.

Overview

Microsoft Exchange hosting has become a popular solution for small- and medium-sized businesses that want the same class of messaging and collaboration as compared to large corporations, at the same time they cannot afford the expense of hosting their own exchange. As per "American Data Technology", here are the top 10 reasons for SMEs choosing Microsoft Exchange Hosting:

"The Microsoft Information Technology (Microsoft IT) group required a reliable and cost-efficient solution to increase protection against spam, viruses, and other messaging threats. Microsoft IT implemented Microsoft® Exchange Hosted Services to meet these"

Register now for this webinar, to hear IDC collaboration strategist Mark Levitt describe how the evolution of email, messaging and collaboration has reached the point where your organization should revisit the decision made years ago between on-premises software or software as a service (SaaS).

Denver, CO, Oct. 1, 2008 -USA.NET, Inc. announced today that industry leading analyst firm, The Radicati Group, Inc., ranked it as the "Top Player" in their Hosted Microsoft Exchange- 2008 Market Quadrant report. USA.NET was recognized for leading the market in terms of market share and for offering a highly comprehensive suite of messaging services at an affordable price that target a broad range of customer needs. USA.NET scored highest on functionality and market share as compared to other messaging providers.

"We are honored to be distinguished for the second time in a row by the Radicati Group as the market leader in the rapidly growing hosted business email and messaging market," said Doug Howard, President of USA.NET and Chief Strategy Officer of its parent company, Perimeter eSecurity. "I am proud to say that it reflects our ongoing efforts and success in delivering the most reliable email service to businesses."

This month FrontBridge Technologies released its first technical update to their comprehensive set of managed messaging services as a Microsoft subsidiary. FrontBridge Managed Messaging Services 5.2 will provide organizations with more control over their messaging environment, streamlining overall IT management and minimizing administrative costs.  

Key benefits of FrontBridge Managed Messaging Services 5.2 include: 

USA.NET was selected the winner in the Exchange Hosting Solution category of the MSExchange.org Readers’ Choice Awards. JustExchange and ASP-One were runner-up and first runner-up respectively.However, here the poll shows other players in the subsequent ranking per users voting.

Source: http://www.msexchange.org