What did you do - running the new account wizard, or manual setup? Did you check with your email provider about the correct server settings?

Thanks, christ1. I did everything my email provider suggested but still ended up with a Google email address instead of one from the sgnewlands.me domain, which I bought from Gandi when I was asked whether I wanted a new email address. I feel I have wasted my money buying something I am unable to use, so perhaps I should just accept that and cut my losses.

Can you post your Troubleshooting Information? Help (Alt-H) - Troubleshooting Information What are the instructions you received for setting up your email?