Eudora 

Windows :
For windows Eudora Latest version is 7.1 download

older Eudora downloads

Eudora 6 how to change port numbers
Eudora 6 how to change port numbers 
Relay personality to use smtpauth 
Old Eudora port numbers 
Eudora MD5 problem
Esoteric.epi and Esoteric Settings Windows
ports eudora forum 
Eudora features 
Eudora Tutorials 
Eudora KB search 
Eudora manuals 
Eudora forums 

MAC
For MAC OS X Eudora Latest is 6.2.4 download

older Eudora downloads

Escortic settings to change ports 
Escortic settings to change ports
Eudora Applications Folder files for esoteric settings
ports eudora forum 
Eudora features 
Eudora Tutorials 
Eudora KB search 
Eudora manuals 
Eudora forums