Pegasus Mail
Da Freeware Wiki.
(Copyright © 2000-2014, David Harris – www.pmail.com)
Pegasus Mail v4.70 is yet another interim release. Internally, this version of the program is actually very different from any previous version, and is well on the way to being a version 5 build, but it's been a while since we've had a new version and there's a clear need for the new OpenSSL-based SSL code I've developed for version 5 so I decided it was time to freeze a checkpoint in the development and bring it out.
Download: www.pmail.com/downloads_s3_t.htm