ZMailer
From Wikipedia, the free encyclopedia
ZMailer is a Mail Transfer Agent for Linux and other Unix-like systems. It was first developed in 1988, in reaction to the then existing problems with Sendmail, by Rayan S. Zachariassen at the University of Toronto. The lead developer, since at least 1994, is Matti E. Aarnio. While official releases have recently been infrequent, regular development and bug-fixes occur in CVS.
ZMailer supports all the modern features expected in a MTA including DNSBL, SPF, and message content scanning.
One site of note utilizing ZMailer is vger.kernel.org, hosting the various Linux kernel mailing lists.
