How can I ensure that the user enters a valid email account on my form?

¡Ayuda! 

Me gustaría saber como puedo hacer para validar que el usuario ingrese una cuenta de correo válida en mi formulario.

I suggest you turn on the Confirmation Text Box option in the Email field. Here's how:

In the Form Builder, select the Email field and then click the "Properties" button. Go to "Options" tab and enable the "Confirmation Text Box".

We also have a widget called Email Validator. This widget makes sure that a valid email is used on your form through a pass-code verification process. Here's a guide on How-to-Add-a-Widget-to-Your-Form

Hope that helps. Thank you.