Typically your email is provided by your domain registrar such as GoDaddy or Network Solutions. Checking GoDaddy email is easy. 

Just log in with your full email address and password here: 

https://login.secureserver.net 

If you don't know your email address and password, you can go directly to your web mail by logging into GoDaddy (http://www.godaddy.com) and clicking on the Email > Launch (green button, any one will do) and then the envelope icon.

 

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