/**
 * Replace Quotes in Gravity Forms Email Headers
 *
 * For some odd reason Gravity Forms includes quotes in the "From" sender name. This is inconsistent with other mail senders so this removes the quotes.
 *
 * @param $email
 * @param $message_format
 * @param $notification
 *
 * @return mixed
 */
function givewp_filter_gravityforms_quotes( $email, $message_format, $notification ) {

	$email['headers']['From'] =  str_replace('"', "", $email['headers']['From']);

	return $email;

};

add_filter( 'gform_pre_send_email', 'givewp_filter_gravityforms_quotes', 10, 3);