This is the most lite, SEO friendly and WordPress mail sending widget plug in for WordPress.

prashaddey

<blockquote>
This Plugin will create a widget which will help you to create a submit form on the frontend of your website. 
 * The form will not only send an email with the infos of the subscribers to your email address but also save those infos on the plugin setting page on your dashboard. 
 * Tested on Twenty Fourteen, Twenty Fifteen, Tweenty Sixteen (free wordpress theme) and the most popular AVADA theme.
</blockquote>
For any kind of help, please visit <a href="http://prashaddey.com/" rel="nofollow ugc">prashaddey.com</a> or <a href="https://plus.google.com/+PrashadDey/" rel="nofollow ugc">My Google+</a>.
A few notes about the sections above:
<ul>
<li>Easiest WP mail sending widget plugin</li>
<li>Will get a private plugin setup page where all mails will be stored</li>
<li>Very simple to use</li>
<li>Very simple to setup</li>
<li>Very light weight</li>
<li>SEO friendly</li>
<li>Responsive</li>
<li>Tested with the current WordPress version</li>
</ul>

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