Hi CorkyG: Thanks for the reply, even if you have now abandoned dear old Eudora! I'm sticking with it because I just don't have the patience to try something new. Like you, I too am sticking with Windows 7. Ironically, I bought a new laptop which was running Win10, and several computer shops said it couldn't run on Win7. My son who is a software programmer found a way to make it work, although I'm getting a variety of "Your copy of Windows is not genuine" messages. Still, beats trying to make Win10 work.
RE Eudora - I just cannot comprehend how all of a sudden my "alias" email address is no longer accepted, nor why I cannot add a new address to my roster. Do you have any suggestions as to who might have taken up the Eudora mantle? I've seen some posts from Jack Jackson and Katrina Knight which sound lilke they have a good grasp of it. Meanwhile, thank you for helping so many people fly the Eudora flag for so long. You've helped a lot of us! I'll stop bugging you now! Be well. Cheers, Jim