How to setup email (so it uses our domain) with this plugin

Ok managed to find a fix

I added this code to the functions.php

add_filter('wp_mail_from','yoursite_wp_mail_from');
function yoursite_wp_mail_from($content_type) {
  return '[email protected]';
}
add_filter('wp_mail_from_name','yoursite_wp_mail_from_name');
function yoursite_wp_mail_from_name($name) {
  return 'Helen Hou-Sandi';
}

I found the answer here, thanks to the OP – https://wordpress.stackexchange.com/questions/9102/why-wont-wp-mail-let-me-set-the-from-header-when-plain-old-php-mail-will