If you’re needing to do some SMTP testing using a Windows Server 2008 host you’re probably going to need a Telnet client. The Telnet client is not installed by default on Windows Server 2008, so you can use this ServerManagerCmd.exe one-liner to quickly install it: C:\>servermanagercmd -i telnet-client ……… Start Installation… [Installation] Succeeded: [Telnet Client]. [...]
Windows Server 2008 ServerManagerCMD.exe command reference

Microsoft Technet has an excellent resource page for the Windows Server 2008 Server Manager (ServerManagerCMD.exe) command-line tool here. One of the highlights is a complete list of the role, role service, and feature command identifiers for installing Windows Server 2008 components. This is an excellent reference and very handy when configuring a Windows Server 2008 [...]



