<form action="https://EXAMPLE/index.php" method="post">
<table class="acymailing_form">
<td><label for="user_name">Name</label></td>
<td><input id="user_name" type="text" name="user[name]" value="" /></td>
<td><label for="user_email">E-mail</label></td>
<td><input id="user_email" type="text" name="user[email]" value="" /></td>
<td colspan="2"><input class="button" type="submit" value="Subscribe" name="Submit" /></td>
<input type="hidden" name="ctrl" value="frontusers" />
<input type="hidden" name="task" value="subscribe" />
<input type="hidden" name="redirect" value="https://YOUR_REDIRECT_URL" />
<input type="hidden" name="hiddenlists" value="YOUR_LISTS" />
<input type="hidden" name="page" value="acymailing_front" />
<input type="hidden" name="action" value="acymailing_frontrouter" />
<input type="hidden" name="noheader" value="1" />