eudora
PGP integration for the Eudora mail user agent

macpgpkit1.6.sit.hqx contains Eudora to PGP scripts for the Macintosh, as well as other tools. Source code is in MacPGPkitSources.sit.hqx. Read this for more details.
peics125.zip contains a ZIP file and its PGP signature. The inner ZIP file, peics.zip, has 16-bit and 32-bit versions of a PGP-shell for the Eudora V3.x mail user agent running on MS Windows 3 and Windows95. This kit holds version 1.25 and has a full manual in HTML format.
epp32v02.zip also contains a ZIP file and its PGP signature. It's a PGP shell for Eudora 3.x