Bulk Email Marketing Tool

I have a windows 2003 R2 VPS server with 2gb ram and 100mbit port. I am looking for a win32 or 64bit program where I can send an email to any amount of emails i import. Must allow me to do the following: Sender Name: Sender Email: Subject Line: Body: Text or HTML Import Emails from .txt , .csv, or .sql extensions.. Have it set macros for subject and sender names. Must be very fast and get through to inboxes. Thanks.