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.

rafkwa

Elastic Email

Elastic Email Sender allows you to connect your WordPress with our powerful, low-cost Elastic Email API and start sending marketing or transactional emails! 
Please follow the information below and find out more about how we can help you send your emails in a more efficient way. 
In case of any questions or concerns, feel free to contact us anytime.
What is the Elastic Email Sender plugin?
The Elastic Email Sender plugin is an easy way to maintain all the aspects related to your email campaigns. From creating and sending your emails to monitoring and managing campaign stats. 
Elastic Email Sender replaces the WordPress default wp_mail() function by using API integration with Elastic Email to send an outgoing email from your WordPress installation. 
Thanks to this, you can track all the parameters of your delivery, use Private IP addresses to get full control over your sending, maintain reputation and delivery and secure your data better than ever. You can also use your own domain and analyze your data with ease.
Elastic Email Sender is compatible with almost every solution available on the market including <a href="https://wordpress.org/plugins/woocommerce/" rel="ugc">WooCommerce</a>, <a href="https://wordpress.org/plugins/contact-form-7/" rel="ugc">Contact Form 7</a>, <a href="https://wordpress.org/plugins/ninja-forms/" rel="ugc">Ninja Forms</a>, <a href="https://wordpress.org/plugins/flamingo/" rel="ugc">Flamingo</a>, <a href="https://wordpress.org/plugins/caldera-forms/" rel="ugc">Caldera Forms</a>, <a href="https://wordpress.org/plugins/bbpress/" rel="ugc">bbPress</a>
How to get started? 
Just sign into your <a href="https://app.elasticemail.com/marketing/settings/new/create-api" rel="nofollow ugc">Elastic Email account</a>, copy the API Key. Next, please login to your WordPress dashboard, add the <a href="https://wordpress.org/plugins/elastic-email-sender/" rel="ugc">Elastic Email Sender</a> plugin and paste there the API Key from your Elastic Email account.
<h3>Translations</h3>
You can translate Elastic Email Sender on <a href="https://translate.wordpress.org/projects/wp-plugins/elastic-email-sender" rel="nofollow ugc">translate.wordpress.org</a>.

Elastic Email Sender

This plugin instantly solves my problems. I have Elastic email through Cloudways, and I install this plugin, add my API key, and it instantly resolves my email issues. 

Excellent plugin!

Reconfigures wp_mail() to send email using Elastic Email API instead of SMTP.

ElasticEmail Plugin vs Elastic Email Sender