Zend certified PHP/Magento developer

newsletter new subscriber

I want to use a newsletter subcriber that a customer can add his e-mail to the newsletter_subscriber table.

I use the following code:

<form class="form subscribe" method="post" action="/newsletter/subscriber/new/" >
<div class="form_search">
<div class="container">
<div class="row">
<div class="col-md-4 col-sm-12 col-xs-12 wp-form">
<div class="text_form">VERPASSEN SIE KEINE AKTION!</div>
</div>
<div class="col-md-8 col-sm-12 col-xs-12 wp-field">
<div class="form-newletter"><input class="search_input" name="email" type="email" value="" placeholder="E-Mail Adresse" /> <button class="subscribe" type="submit">Newsletter<br />Anmelden</button></div>
<div class="dsgvo"><input required="" type="checkbox" /> Ich akzeptiere die <a href="/datenschutz" target="_blank">Datenschutzbedingungen</a> von AGO-Shop.</div>
</div>
</div>
</div>
</div>
</form>

But when I insert my e-mail and click the button no e-mail address will be added.

Also the standard magento code:

{{block class="MagentoNewsletterBlockSubscribe" name="static.newsletter" template="Magento_Newsletter::subscribe.phtml"}}

is not working.

Hope someone can help me.
kindly regards