Email Mass mailer/clone

Hello, -Sorry for those who have posted a message but the project has been closed by the administrator. -I need to send mass email. I want the software send email in inbox folder and not in the bulk folder. I mean not detected as spam email. The software has to be very similiar or can be a clone but with a different design of course of another software I'll provide you the url later. I will have the rights for the software and the source code.