I am helping a friend install emClient on 2 computers. We installed both copies with no problems. I then asked for a free license key on computer 1 and received and installed it. Next I asked for a free license for computer 2. It gave an error saying that only 1 free license was allowed per email address. I was under the impression that 2 free licenses were allowed. This is the latest version downloaded about 2 weeks ago.
You can only register one Free License per email address. A Free License allows you to configure two email accounts on a single computer.
If you want to use eM Client on a second computer, register for a second Free License under a different email address. The email address you use to register for the license has nothing to do with the email account you configure in eM Client.