From QKsoft Inc.:

QK SMTP Server is a powerful but easy-to-use smtp server software, which can send mails from localhost to the recipients\' mailboxes directly at an amazingly high speed. Arrived or not, you will get a feedback instantly. QK SMTP Server can work with most mail clients, such as Outlook Express, Eudora, IncrediMail, the Bat!, Mutt, KMail, Pegasus, DevMail, Mail Bomber, Delta Mail, Foxmail, and so on; QK SMTP Server can also work with most mass email sender software so as to improve their performance in an amazingly way! Main Features: >> Add domain name settings and transmit server settings, can easily set your delivery parameter. >> Export/Import user list function, more conveniently manage the accessing users. >> Binding IP to server: If the user has only one network card, his IP includes the default IP 127.0.0.1 and LAN or WAN IP; If he has two or more than two network cards, his IP will be more. The binding IP to server function can access IP control. Only the binding IP can access. >> Fast mailing with multithreads technology, You can send mails directly from your own computer via QK SMTP Server instead of waiting for connecting and applying with your ISP\'s SMTP server. By setting send thread (1~100), you can complete 500~2000 mails in one minute. >> Can get correct and instant feedback from the recipients\' mail server when sending mails at a high speed via QK SMTP Server. >> QK SMTP Server allows you to view and manage email delivery and receiving status. You can empty all the delivery and receiving logs as well as exporting email addresses. >> History log: Add search function, can look up mails\' particular log and sending failure record. Once you send the log to us, we can assist you quickly find the failure reason. * revise some bugs * add an applicaton button in the settings window * add some showing events in the log window on the main interface