<div>
<div class="content wysiwyg-content">
I need a fast SMTP server, that can handle a lot of throughput, fast.<br />
<br />
I prefer an open source or lightweight tool that is very common (not an obscure tool).<br />
<br />
<br />

</div>
</div>


I need a fast SMTP server, that can handle a lot of throughput, fast.

I prefer an open source or lightweight tool that is very common (not an obscure tool).




Better Windows SMTP server than IIS?

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.