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Compare with other Field
The Compare with other Field validation allows you to check whether the input in the current field is identical to that entered in another specific field. After adding the Compare with other Field validation, a required drop-down box entitled "Compare with" appears. Select the field whose input you want to compare to the current field from the drop-down list.
E-mail Format
The E-mail Format validation checks whether the email address entered by the website visitor is valid. The E-mail Format validation is assigned to the E-mail form element by default.
Required
The Required validation checks whether the website visitor has entered data into a field that is required. Note: Assigning this validation to a form element has the same effect as checking the option "Required field" of the form element.
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