Application for sending personalized email to subscribers QMailer is an application for sending personalized email to subscribers (received from a website or email). QMailer manages (categorize based on email content) your subscribers and sends large personalized mailings. Do you use email to stay in touch with clients, colleagues and others. Create your own mailing (newsletter, reminder, etc.) and send regular communications to any number of subscribers with ease. Whether you're an email marketer a secretary or someone else QMailer can save you time.