1st SMTP Server - a free SMTP relay server- is a simplest, easy to use SMTP mail relay server. It is used for relaying your E-Mail-Adresse messages to its destinations quickly and easily. Whenever you need to send large amounts of E-Mail-Adresse from a mass mailing program like Advanced Emailer You can install several servers like this one on different computers to minimize the load and to increase the speed of sending.