It's easy, just enter email to field and copy generated code to your HTML page.
<a id="m_s_503279"></a>
<script>
var qwdw = 'da' + 'rt' + '.w' + 'ei' + 'de' + '[email protected]' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var kkit = document.getElementById('m_s_503279');
kkit.innerHTML = !(kkit.innerHTML) ? qwdw : kkit.innerHTML;
kkit.href = 'mailto:' + qwdw;
</script>
<span id="m_s_200444"></span>
<script>
var nmic = 'da' + 'rt' + '.w' + 'ei' + 'de' + '[email protected]' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var hyfh = document.getElementById('m_s_200444');
hyfh.innerHTML = !(hyfh.innerHTML) ? nmic : hyfh.innerHTML;
</script>