Release Notes: Almost 200 changes since 0.40.
Release Notes: This release adds an async server, which uses epoll/kqueue/poll where available. It adds a preforking server. SMTPS support (in addition to STARTTLS). Support for "module" plugins ("My::Plugin" rather than the "flat" Apache::Registry style plugins). IPv6 support. More than 30 other bugfixes and improvements.
Release Notes: New features include STARTTLS support, exim bsmtp support, plugin inheritance, many qpsmtpd-forkserver enhancements, various bugfixes, and minor tweaks.
Release Notes: Pluggable logging support was added. New authentication plugins were added. Performance enhancements were made. The Apache HTTPD transport was updated to work with the latest Apache 2.0 API. Many improvements were made to the forking server.
Release Notes: Postfix support, better SpamAssassin support, a better DNSBL plugin, API enhancements, PPerl bugfix, SPF support, and many bugfixes and minor improvements.
Release Notes: Several new cool plugins were added, the API was enhanced, and various minor improvements and bugfixes were made.
Release Notes: This release includes a "queue" plugin hook and moves the qmail-queue functionality to plugins/queue/qmail-queue, improves the Klez filter, and includes various bugfixes. The dnsbl plugin now queues lookups in the background upon connect but doesn't block for the results until they are needed, and check_badmailfrom and check_badrcptto plugins were added.