Email Delivery Server - Version 5.6 If you have been trying to deliver many email messages or support your own email domain, you know how hard and costly it can become. Sending emails in large quantities is not easy. In addition to managing your subscribers lists correctly, you need to make sure that most of your emails reach their destination. If you are working with a shared email server, you can easily be banned for somebody else's mistake, because an entire IP or an IP range is banned taking everybody who uses this IP with it. If you have your own email server to send your email, it is private to you and nobody else. Our SMTP server has tons of built in features to deliver email and protect you from spammers. We support multiple RBL servers to filter out those spammers and we can white list or black list entire IP ranges with sophisticated checking, so that only those who are authorized to relay messages will be able to do so. This email server is one tool that has everything you need for mass mailing, such as parametrized mailing lists, where you can import very large list of your subscribers, even with all their