Visforms - repeat email

I'm creating a contact form and I want to use a "Repeat email address" filed to verify the correct typing of the email address of an other field. How can I set veriforms to let it verify that "Repeat email address" field i equal to "Email" one?

Create a second field of type email.
Save the field
After that the list box for the option "Equal To" of this second email field is populated with all other fields of type email which already exist.
Select your first email field as "Equal To" value.
Save the second email field.

For sending a receipt mail to the user of the website, Visforms searches the user inputs of all fields of type email and uses only the first value (not empty field) it can find. Only one mail will be send to the user, even if you have more than one email field in your form.

Regards,
Aicha