Anonymous Bulk Email Program

Looking for a program that will send out my emails anonymously. The program will have to block any information from where its coming from (IP, ISP, SERVER...) It needs to handle about 100,000-200,000 emails a week. Our list is in text form, emails are 1 email per line. There obviously needs to be a way to upload the list. And a box to put my message (this too will be in text form, no need for html).