To prevent the abuse of free accounts, webmails like Gmail or Yahoo have been disabled in the SalesQL signup form.
However you can still sign up by using your Linkedin account, regardless of whether the email you are using on Linkedin is a Gmail or Yahoo address.
How to sign up using Linkedin
First, be sure to install SalesQL:
Click on the SalesQL Icon, and then on 'LinkedIn':
Now you should be able to use SalesQL and add your first contact.
