Erro ao insert email

Can you let us know your website domain so we can check that?

It seem to be working just fine, see screenshot: http://d.pr/i/1bDMB+

Hello. We tried again, and it works on Safari, Chrome and Firefox.

Can you try with a never before used email address?

Hello again, I tried myself again and there is still no issue.

This said, I don’t get the confirmation email to activate my subscription. Do you have Signup Confirmation activated in your settings?