Shaharia Azam

Currently there are lots of plugins available to integrate 3rd party email gateway provider in your WordPress site. It seems that for every provider you need to install 
different plugin. From that use case scenario, this WP Mail Gateway plugin can be your All in One email solutions for WordPress.
With this one plugin, you can integrate tons of third party email service provider.
WP Mail Gateway can be your complete email solution plugin for your WordPress website. Send mail via multiple email gateway provider from your WordPress. 
Supports various mail provider. i.e: Amazon SE, Mailgun, Mandrill, Mailjet, Postmark, Sendgrid, SendinBlue, SMTP etc.
Currently we support the following email gateway provider. We are regularly updating the list.
Supported Email Gateway Provider:
<ul>
<li>Amazon SES</li>
<li>Mailgun</li>
<li>Mandrill</li>
<li>Mailjet</li>
<li>Postmark</li>
<li>Sendgrid</li>
<li>SendinBlue</li>
<li>SMTP</li>
</ul>

WP Mail Gateway

It's worth to install this plugin. In my case actually I have several email gateway provider for various reason (costing, spam protection, better deliverability, transactional).
So I can switch to my preferred email gateway provider for my Wordpress site whenever I want. I added and configured multiple provider and I can select which one will Wordpress use for email delivery. Simple and perfect!

It works. Superb! I can switch email gateway as I wish

This is the best plugin to use with Aws SES.
Contrary to what was mentioned, I found nothing wrong with the source code indicating some kind of scam.
Keep updating the plugin, note 10!

The best to use with AWS SES!

Send email from your Wordpress site via SMTP and other 3rd party mail gateway provider. Current it supports Amazon SES, Mailgun, Mandrill, Mailjet, Po …

EverPress

Xaver

Mailster Newsletter Plugin

<blockquote>
This Plugin requires <a href="https://mailster.co/?utm_campaign=wporg&utm_source=wordpress.org&utm_medium=readme&utm_term=Mailjet" rel="nofollow ugc">Mailster Newsletter Plugin for WordPress</a>
</blockquote>
Uses Mailjet to deliver emails for the <a href="https://mailster.co/?utm_campaign=wporg&utm_source=wordpress.org&utm_medium=readme&utm_term=Mailjet" rel="nofollow ugc">Mailster Newsletter Plugin for WordPress</a>.
Read the <a href="https://kb.mailster.co/send-your-newsletters-via-mailjet?utm_campaign=wporg&utm_source=Mailjet&utm_medium=readme" rel="nofollow ugc">Setup Guide</a> to get started.
<h3>Additional Info</h3>
This Plugin requires <a href="https://mailster.co/?utm_campaign=wporg&utm_source=wordpress.org&utm_medium=readme&utm_term=Mailjet" rel="nofollow ugc">Mailster Newsletter Plugin for WordPress</a>

Mailster Mailjet

Uses Mailjet to deliver emails for the Mailster Newsletter Plugin for WordPress.

WP Mail Gateway vs Mailster Mailjet