Delete Duplicates for Eudora
Delete Duplicates for Eudora finds duplicate messages and attachments with diligence and sophistication in your Eudora folders, and it removes them automatically, too.
Setbackground Eudora Plug-In
Setbackground Eudora Plug-In lets you set the background color of or add a background image to an email you compose in Eudora, but in a somewhat crude and complicated way. (Windows)