mailchimp form action

<input type="email" name="MERGE0" id="MERGE0">

<form action="http://mailchimp.us8.list-manage.com/subscribe/post" method="POST">
<input type="hidden" name="u" value="a123cd45678ef90g7h1j7k9lm">
<input type="hidden" name="id" value="ab2c468d10">