cubefeed

The problem: SMTP email delivery by some hosting providers can be extremely slow. This plugin reconfigures the wp_mail() function to send email using HTTPS (via Elasticemail API) instead of SMTP and creates an options page that allows you to specify various options.
Plugin Settings Options:
<ul>
<li>Enable or Disable Plugin.</li>
<li>Elasticemail API username</li>
<li>Elasticemail assigned API Key</li>
<li>Elasticemail REST API URL</li>
<li>Your account channel variable(optional)</li>
</ul>

ElasticEmail Plugin

Reconfigures the wp_mail() function to send email using HTTPS (via Elasticemail) instead of SMTP and creates an options page to manage the settings.

chriscarvache

eTemplates simplifies the creation and delivery of dynamic emails. The plugin is best used in conjunction with custom coded application style websites that send out emails populated with dynamic data to users at specific points in the application logic.
Some examples of usage could be:
<ul>
<li>Shopping carts</li>
<li>Social media sites</li>
<li>Project management systems</li>
<li>Your custom application here!</li>
</ul>
Use eTemplates to create consistently branded emails with ease!

eTemplates

Create simple, yet powerful dynamic email templates that are commonly used in application style websites. For developers / advanced users ONLY.

ElasticEmail Plugin vs eTemplates