Enable Email validation
With the GravityWP – List Text add-on for Gravity Forms you can enable e-mail validation on a column in a Gravity Forms List Field.
For single column it looks like this: After activating the ‘Enable Text Options’ checkbox in your List Field settings, you can select ‘Enable Email Validation’. You can also (optionally) fill in a placeholder for the column, like ‘Enter email’ in the example below.
And for multiple columns you can activate the emailvalidation for every column seperately: