A Perl-based smtpd daemon with great flexibility.
Originally designed as a drop-in replacement for qmail-smtpd, qpsmtpd has since evolved to support a smtp forward and a postfix backend. This, coupled with its easy plugin API, makes it an excellent choice for those looking to add more functionality to their mail server or replace their current daemon altogether. Whether you are a system administrator or a developer, qpsmtpd's customizable and scalable design makes it an indispensable tool to have.
Version 0.82: N/A