Check this out, Sembee just posted an awesome blog
A new tool from the Microsoft Exchange team, currently in prototype/development may well be something to help you. https://www.testexchangeconnectivity.com/ can currently test Autodiscover, Outlook Anywhere (which should work for Exchange 2003 and Exchange 2007), ActiveSync and inbound SMTP.
Good olde Doug has done it again. Check the docs out they are great
The ability to continue to provide a full service to your user community in the unlikely event of the loss of a datacentre is an increasingly common requirement. The use of Continuous Replication (CCR and SCR) with Exchange 2007 Service Pack 1 is an obvious choice in providing data availability and site resilience. One advantage to this approach is that the reliance on expensive storage replication solutions is eliminated. In addition, a disaster recovery scenario is managed from within one team rather than several teams. In most cases the messaging team can manage the restoration of service without the intervention from the storage team, or from a remote 3rd party hardware vendor for example. The use of Exchange Server data replication as opposed to storage replication solutions also gives us more options to use PowerShell scripts to assist administrators in simplifying and controlling service and data recovery and application-based replication is generally superior in assessing the health of the data being replicated than hardware or storage-based replication.
Hewlett-Packard (HP) has confirmed that it is in talks to buy the information technology provider Electronic Data Systems (EDS).
It followed a report in the Wall Street Journal, which said that HP was close to a deal to buy EDS for between $12bn (£6.1bn) and $13bn.
EDS is a Texas-based information technology services company, of which HP is among the biggest customers.