I tried to use my original password again and it did not work. According to my enail client's web page (I use Mozilla Thunderbird). "Thunderbird doesn't provide a way for a user to enter POP/IMAP/SMTP servers password when configuring an account. When you change a password using Thunderbird it has no effect on the real password". I am able to use the password manager in Thunderbird and delete all passwords and reenter them. That becomes a major task. The saved password on my laptop worked for a long time and only recently stopped working. Since I had only one saved password in the password manager on my laptop, I was able to delete it and reentered it when I tried sending an email and,of course, it failed.