MB MB

This plugin makes it easy to display the featured images of your posts in mailchimp RSS newsletters.
Once activated this plugin will add the following to your sites default rss feed:
To the rss name space declarations:
<pre><code> xmlns:media="http://search.yahoo.com/mrss/"
</code></pre>
To each individual item (if it has a featured image):
<pre><code><media:content url="[url]" type="[mimetype]" medium="image" width="100%" height="auto">
 <media:description type="plain"><![CDATA[title]]></media:description>
</media:content>
</code></pre>
The featured images are not inserted directly into the content of your posts, so you have full control over where and how to present them. 
If you send out newsletters using a Mailchimp RSS based Campaign, simply place the *|RSSITEM:IMAGE|* merge-tag in your mail template where you want the featured image inserted.
This plugin contains
<ul>
<li>100% clean lightweight code.</li>
<li>0% JS</li>
<li>0% CSS</li>
<li>0% options</li>
</ul>
The plugin uses the hooks ‘rss2_ns’ and ‘rss2_item’, part of the WordPress core API. 
Tested with WP 3.7.1 and MailChimp Dec 2013
Contribute via <a href="https://github.com/mikkelbreum/MB-ImageChimp-RSS-Feed-Enhancer/" title="MB-ImageChimp-RSS-Feed-Enhancer" rel="nofollow ugc">github</a>

MB ImageChimp RSS Feed Enhancer

Adds featured images to the default RSS feed for use with MailChimps image merge-tag

MC_Amanda

MC_Will

This plugin uses <a href="http://mandrillapp.com/api/docs/" rel="nofollow ugc">Mandrill API</a> to send outgoing emails, with or without attachments, from your WordPress installation. It replaces the wp_mail function included with WordPress.
Emails are tracked and automatically tagged for statistics within the Mandrill Dashboard. You can also add general tags to every email sent, as well as particular tags based on selected emails defined by your requirements.
You can also use your own templates that have been added to your MailChimp account and shared with your Mandrill account.
There are a few levels of integrations between your WordPress installation and this plugin:
<ol>
<li>The simplest option: Install it, configure it, and wpMandrill will start sending your emails through Mandrill.</li>
<li>If you need to fine tune certain emails, you can change any email by creating a filter for the mandrill_payload hook.</li>
<li>For further customization, we’ve exposed a function that allows you to send emails from within your plugins, instead of the regular wp_mail function: wpMandrill::mail</li>
</ol>
This plugin is currently released as beta for early adopter evaluation and finalizing of the initial feature set.
Spanish translation available.
<h3>Request</h3>
If you find that a part of this plugin isn’t working, please don’t simply click the WordPress “It’s broken” button. Let us know what’s broken in <a href="https://wordpress.org/tags/wpmandrill?forum_id=10" rel="ugc">its support forum</a> so we can make it better. Our <a href="http://www.youtube.com/watch?v=cCTlonSwePs" rel="nofollow ugc">mind-reading device</a> still needs some tweaking.
<h3>Localizations</h3>
wpMandrill is currently localized in the following languages:
<ul>
<li>Spanish (es_ES)</li>
</ul>
<h3>Known Issues</h3>
<ul>
<li>Daily statistics will show data for the first 20 senders (emails) registered.</li>
<li>Daily statistics will show data for the first 40 tags registered.</li>
</ul>
If your account has more than 20 senders registered or more than 40 tags used, the detailed daily statisticas might show incompleted data.

wpMandrill

I was not getting Woocommerce emails so decided to try Mandrill, with this plugin.
Easy to set up, and it fixed my problem. Very happy. Thanks!



Excellent

The wpMandrill plugin sends emails that are generated by WordPress through Mandrill, a transactional email service powered by MailChimp.

MB ImageChimp RSS Feed Enhancer vs wpMandrill