Silverpop is a marketing/campaign platform. You can upload a list a contacts (emails) and send marketing information (email templates) to the contacts by rules.
Attached is a C# script to interface with Silverpop. On request, the Web Tracking and Raw Recipient data from silverpop are dumped to an associated FTP. A C# script (uses WinSCP library) to download files from the ftp is also attached.