The software(no SMTP) is an function-allsided,speedy,performance-stable bulk email software for sending business mails to every customer all over the world,which it has multi-sending,management,cheching unSubscribed function.It not just assembles the advantages of many multi-sending softwares,but it can adapt to many language circumstances,and unique unsubscribed function helps you settle annoyances sending mails,which it is a perfect software for multi-sending business mails to your relevance customers. You can directly send mails to ultimate PC without SMTP server avoiding to transport delay or lose mails.