2martens.de/_includes/sidebar/politics_qanda.html

<div class="card sidebar mb-3">
    <div class="card-body">
        <p class="card-text">
            Questions? Suggestions?:<br>
            <span class="fas fa-envelope"></span>&nbsp;<a href='mailto:{{ site.data.author.politics_email }}'>{{ site.data.author.politics_email_spam_proof }}</a>
        </p>
    </div>
</div>