When you create a new distribution group within Exchange and try to send an email from an external address to this group, you will receive a error message which states that you must be authenticated to send to this group.
This is the default behavior of Exchange 2007 to avoid SPAM.
To change this behavior open the [...]
To install the Windows Server 2008 operating system prerequisites for Client Access servers by using the graphical user interface
1.
Start Server Manager. To do this,click Start, and then click Server Manager.
2.
In the navigation pane, click Roles, and then [...]
The Microsoft Exchange Database Troubleshooter Tool detected one or more MSExchangeIS 9519 events with error code 0×972 in the Application log. This indicates a failure of public folder databases to mount because the Public Folders container has been deleted or is missing needed attributes.
Explanation
This error can occur when [...]
