Microsoft has released a beta version of Microsoft Exchange Server 2010
>> Microsoft Exchange Server 2010 Beta
Microsoft Exchange® Server 2010 Beta helps IT Professionals achieve new levels of reliability with greater flexibility, enhanced user experiences, and increased protection for business communications.
Flexible and reliable - Exchange Server 2010 gives you the flexibility to tailor your deployment based on your company's unique needs and a simplified way to keep e-mail continuously available for your users.
Anywhere access - Exchange Server 2010 helps your users get more done by giving them the freedom to securely access all their communications - e-mail, voice mail, instant messaging, and more - from virtually any platform, Web browser, or device.
Protection and compliance - Exchange Server 2010 delivers integrated information loss prevention, and compliance tools aimed at helping you simplify the process of protecting your company's communications and meeting regulatory requirements.
This software is intended for evaluation purposes only. You must accept the license terms before you are authorized to use this software. There is no product support for this trial software. You are welcome to participate in the forums to share your trial experiences with others and to ask for advice.
>> Microsoft Exchange Server 2010 Beta