Using text-shadow in HTML email with inline CSS
<p>Is it possible to use the text-shadow feature with inline CSS? I am trying to give my header a border, but nothing seems to work. I am writing this for an email template in an IT ticketing application, so I can't add a separate style sheet. It seems my options are limited. Maybe my syntax is wrong?</p>

<p><div class="snippet" data-lang="js" data-hide="false">
<div class="snippet-code">
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;h1 style="text-align: center"&gt;
&lt;span style="font-family: Verdana"&gt;
&lt;span style="text-shadow: -1px -1px #ffffff, -1px 1px #ffffff, 1px -1px #ffffff, 1px 1px #ffffff"&gt;
    Service Request Created
&lt;/span&gt;
&lt;/span&gt;
&lt;/h1&gt;</code></pre>
</div>
</div>
</p>

<p>Please let me know if what I am trying to do is even possible.</p>