Mohammad Jangda

Converts the default plain-text email notifications into fully customizable, sweet-lookin’ HTML emails.
Multi-site support (for WordPress 3.0) will be added soon.
Notes:
<ul>
<li>Emails are sent with readable plain-text versions for email clients that don’t support HTML emails. Note: they’re somewhat crude because they’re auto-generated. I may decide to add decent-looking plain-text versions in the future, but that’s low priority.</li>
<li>Emails have only been tested on Gmail, Gmail on Android, and Outlook, but should work on most email clients (including clients without HTML support). If you’re using a client other than the 3 I’ve listed, I would appreciate <a href="mailto:batmoo@gmail.com" rel="nofollow ugc">an email</a> with info on whether the email looks like it should and works correctly.</li>
</ul>
Send your questions, comments, suggestions <a href="mailto:batmoo@gmail.com" rel="nofollow ugc">via email</a>.
<h3>Customizing Templates</h3>
You can fully customize the look of any of the emails by creating your own templates. Emails have two pieces:
<ul>
<li>Email Wrapper (content common across all emails)</li>
<li>Email Message (content unique to each email)</li>
</ul>
Custom templates can be created an placed in either your theme directory or your Content directory (/wp-content/ on most sites). See utils.php for a number of useful functions that you can use in your templates.
Email Wrapper
The Email Wrapper includes elements and markup that are common across all email notifications. It contains your html, head and body tags and any other elements that are shared across emails.
To customize the email template, create a file called <code>html_email.php</code> and add it to either your theme or content directory.
Note: you must include the following code in the template to work:
<pre><code><?php htmlize_message_body($email_templates, $email_data); ?>
</code></pre>
The Email Wrapper has access to the following variables:
<ul>
<li>$email_title: (string) title of the email</li>
<li>$email_subtitle: (string) subtitle of the email</li>
<li>$email_data: (array) Associative array of various data passed by the calling function</li>
</ul>
Email Message: New Comment
By default, new comment and comment moderation emails share the same template. You can create separate templates for both for each comment type by creating the following files:
<ul>
<li><code>notify_postauthor_comment.php</code></li>
<li><code>notify_postauthor_trackback.php</code></li>
<li><code>notify_postauthor_pingback.php</code></li>
<li><code>notify_moderator_comment.php</code></li>
<li><code>notify_moderator_trackback.php</code></li>
<li><code>notify_moderator_pingback.php</code></li>
</ul>
If you don’t want to customize the emails by comment type, just create the following two templates:
<ul>
<li><code>notify_postauthor.php</code></li>
<li><code>notify_moderator.php</code></li>
</ul>
If you just want a custom template shared between the two notification types, just create the following:
<ul>
<li><code>notify_comment.php</code></li>
</ul>
New Comment email messages have the following data variables available:
<ul>
<li>$comment – (obj) comment object</li>
<li>$post – (obj) post object </li>
<li>$comment_type – (string) slug for the comment_type</li>
<li>$comment_type_text – (string) friendly name for the comment_type</li>
<li>$comment_moderate – (bool) Whether the comment needs moderation or not</li>
</ul>
<h3>Using HTML Emails in your plugin</h3>
It’s pretty easy to use. The main call you need to make is htmlize_message() and pass the return into your wp_mail object. Details to come.
<h3>Credits</h3>
<ul>
<li>Blockquote image borrowed from the amazing <a href="https://wordpress.org/extend/themes/wu-wei" rel="ugc">Wu Wei theme by Jeff Ngan</a></li>
<li>Plain Text conversion script by <a href="http://www.chuggnutt.com/html2text.php" rel="nofollow ugc">Jon Abernathy aka Chuggnutt</a></li>
<li>Email styling inspired by <a href="http://en.support.wordpress.com/blog-subscriptions/" rel="nofollow ugc">WordPress.com Blog Subscription Notifications</a></li>
</ul>

HTML Emails

Converts the default plain text email notifications into fully customizable, sweet-lookin' HTML emails.

cbfreeman

Send personalized email messages to your customers within Easy Digital Downloads. When you release an updated version of a product, promoting a new product, specials and discounts, use this extension to send an email with a message exclusively to the your Easy Digital Download’s customers.
Customizable Email Message – Craft a content rich HTML message with full color graphics and vivid text – whether that’s a new edition of your software or a beta test for a new product.
Complete Unsubscribe System – The added {unsubscribe} email link customers can click on to be removed from future promotions.
Email Preview Confirmation – See a preview of your email, with templates and tags processed, after saving changes before sending the live email to all customers.
Send Test Emails – If you’d rather preview your email message inside different email clients, you can easily send test emails to as many email addresses as you like – with tags interpreted and displayed just as your customers will see them.
<h4>EDD Promo</h4>
EDD Promo is a fully functional but limited version of our full <a href="http://cbfreeman.com/downloads/edd-promo/" rel="nofollow ugc">EDD Promo plugin</a>.
Our full version includes many more features:
<ul>
<li>
Complete Promotions Management Log – View a history of all your promotions. Easily see your send and open records to know just how well your promotions are working.
</li>
<li>
Resend Promotions – This feature allows you to resend a great promotion stored in your history log at any time in the future.
</li>
</ul>
<a href="http://cbfreeman.com/downloads/edd-promo/" rel="nofollow ugc">Upgrade to the full version now </a>.
<h4>Internationalization</h4>
EDD Promo is currently available in :
<ul>
<li>English</li>
</ul>
I’m looking for translators to extend to other languages. If you have translated the plugin in your language or want to, 
please let me know : edd_promo [ at ] cbfreeman.com
<h4>Contributing</h4>
EDD Promo is also available on <a href="http://cbfreeman.com/downloads/edd-promo/" rel="nofollow ugc">cbfreeman</a>.

EDD Promo

Adds a customizable HTML emailer to your Easy Digital Downloads plugin.

HTML Emails vs EDD Promo