Exchange Server 2007 is applied only with Windows 64-bit x86-64 variants. It may be v8 or v8.1 with SP1. Anyway it features only full editions and a 32-bit trial version is available to anyone. Anyway there are still several companies that keep on applying Exchange Server with thirty two-bit hardware. In order to turn to the new version of software they’ll need to change the hardware. Also it appears so that the firms are applying previous 2000/2003 Exchange Server even having sixty four-bit hardware. In this case they will have to turn to the edition of 2007 as it doesn’t let in-place upgrades.
“Exchange 12”, the first beta edition of Exchange Server 2007, was available in winter of 2005 first for a small number of people. As fixed in Microsoft Exchange team archives a developed beta version was let out in March 2006. It turned available with TechNet Plus or MSDN subscriptions. In some time, on April 25, everybody knew that the coming version to be let out by Microsoft will be known as Exchange Server 2007.
In fact Exchange Server 2007 is included into those Innovative Communications Alliance developments. These are the microsoft exchange server roles fixed as the components of the program edition of 2007.
1. MB (Mailbox)
It keeps public data and sorts e-mails. The role is also supposed to cater for Outlook clients MAPI access. Still there can be another variant. For clustering mailbox data with high-availability MSCS Clustered Mailbox role is applied. But it is impossible to use other roles on the hosting exchange server with this modification of Mailbox role.
2. Client Access Role
The role doesn’t use MAPI, it is supposed for another mailbox hosting protocol access. Using internet browsers, mobile devices similar to ActiveSync or a third party mail agent is one more advantage of the role.
3. UM ? Unified Message
Applying Unified Message end users can list their mail, manage note books or anything with only a phone. But to let the server role function one should install things like IP-PBX or VoIP gateway.
4. Hub Transport or HT
Arranging mails and sorting them due to the destination is the task of this role. Well, while Exchange 2003 Bridgehead manages mail amounts with admin defined groups, this 2007 edition applies AD site data to arrange it.
5. The Role of Edge Transport
This is the first step for inbox and the last step for outgoing.