Mail Client	Eudora Light	Eudora Pro	Eudora Pro
Version	3.x	4.3	5
FreeWare	Yes	Yes, in Sponsored Mode	Yes, in Sponsored Mode
Default Path to Files	C:\eudora	C:\eudora	C:\eudora
Inbox
Storage File	in.mbx	in.mbx	in.mbx
Index File	in.toc	in.toc	in.toc
Outbox
Storage File	out.mbx	out.mbx	out.mbx
Index File	out.toc	out.toc	out.toc
Trash/Deleted Items
Storage File	trash.mbx	trash.mbx	trash.mbx
Index File	trash.toc	trash.toc	trash.toc
Default Folders	Inbox, Outbox, Trash	Inbox, Outbox, Trash	Inbox, Outbox, Trash
Will Individual Files Rebuild	Yes, .toc files will rebuild, but mark all unread.  .mbx files will delete all mail in the associated folder, but will rebuild	Yes, .toc files will rebuild, but mark all unread.  .mbx files will delete all mail in the associated folder, but will rebuild	Yes, .toc files will rebuild, but mark all unread.  .mbx files will delete all mail in the associated folder, but will rebuild