Require a Work Email in Gravity Forms
Asks for a company email address instead of Gmail, Yahoo or other free webmail in Gravity Forms email fields, for B2B lead and demo request forms.
Opens WPIDE on
Code
$wpide_gf_free_providers = array( 'gmail.com', 'googlemail.com', 'yahoo.com', 'hotmail.com', 'outlook.com', 'live.com', 'aol.com', 'icloud.com', 'gmx.com', 'proton.me', 'protonmail.com', 'mail.com', 'yandex.com' );
add_filter( 'gform_field_validation', function ( $result, $value, $form, $field ) use ( $wpide_gf_free_providers ) {
if ( 'email' !== $field->type || ! $result['is_valid'] ) {
return $result;
}
$classed = false;
foreach ( $form['fields'] as $f ) {
if ( false !== strpos( ' ' . $f->cssClass . ' ', ' work-email ' ) ) {
$classed = true;
break;
}
}
if ( $classed && false === strpos( ' ' . $field->cssClass . ' ', ' work-email ' ) ) {
return $result;
}
$email = strtolower( trim( is_array( $value ) ? (string) reset( $value ) : (string) $value ) );
$domain = (string) substr( strrchr( $email, '@' ), 1 );
if ( $domain && in_array( $domain, $wpide_gf_free_providers, true ) ) {
$result['is_valid'] = false;
$result['message'] = 'Please use your work email address.';
}
return $result;
}, 10, 4 );Notes
Add the CSS class work-email to an email field in the form editor (Appearance tab) to check only that field; without the class every email field is checked.
How to add this snippet
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