Custom Mailer is a powerful, reliable and easy to use mail list manager that allows you to send personally customized e-mail letters to recipients using message templates and client database providing configurable report for each email sent. It is possible to use SQL quiries for manipulation with several tables. It uses multi-thread delivery and ensures 100% usage of your modem. It can also process of incoming emails and transfer extracted data in a database. The program includes html and text mail, personalized mail preview, filtering of recipients using expressions, merge any field of dataset or calculated field into any location of email body or email subject, merging of several tables, SMTP authentication, direct delivery (without SMTP server), mail list-serving, duplicate detection, stop and continuation mailing at any time, unlimited mail list size, unlimited number of projects and much more.