You can run 1st Mass Mailer on Windows operating systems. 1st Mass Mailer is a software product developed by IM-Soft and it is listed in the category. 1st Mass Mailer is licensed as Shareware which means that the software product is provided as a free download to users but it may be limited in functionality or be time-limited. You may need to pay at some moment to continue using product or to use all functionalities.