It's pretty much a spammers dream. It is a very powerful mass mailer that has very minimal requirements. 99% of the time when we come across it, we find it being used for spam, junk mail etc so that user ends up getting terminated for TOS violations
It works very well and appears to be efficient at what it does.
PowerMTA is smtp server software from this help we can send million of mail and PowerMTA is able to consistently deliver millions of emails per hour PowerMTA is a game changer and now a days most of the company are migrating to PowerMTA Most of the company using PowerMTA and it play vital role in delivering email and also allow to use unlimited IP's Through PowerMTA setup IP rotation can be applied to rotate and send mails and PowerMTa includes featues to ad more than one virtual MTA we can use many virtual MTA at the same time and also allow to customize as per the requirement and it is so flexible to change the setting at any time.
PowerMTA is specialized, high performance Message Transfer Agent (MTA) software
that intelligently and efficiently delivers large volumes of e-mail, allowing for maximum
delivery and response. While all-purpose MTAs in use today perform a whole variety of
tasks including delivering e-mail, these general solutions fall short both in regards to
scalability and relevant feature sets, negatively affecting delivery rates and subsequent
ROI. In contrast, PowerMTA was developed for this particular task, helping legitimate,
permission based e-mail marketers, publishers, and service providers overcome the
business and technology challenges of e-mail message delivery.
PowerMTA's basic functionality consists of receiving inbound or outbound messages via
either standard e-mail protocols (SMTP) or programming interfaces, routing them based
on either name services (DNS) or pre-configured information and delivering them using
SMTP or locally to a program.