If you are looking for an email sender to send the personalized email (a message only for ONE recipient, and displays receiver name in the subject/content) to your clients, friends, employees or others for emarketing, greeting, email campaign, sending newsletters or other purposes, and expect it to be fast, with a high delivery/success rate, coupled with enhanced visual real time statistics, 1 by 1 Multithreaded Emailer will be your first choice.