acsnaterse

Disables all email through wp_mail() on current installation. Email will by disabled by default, but can be overridden in the settings.
<h3>Features</h3>
<ul>
<li>Disables all email by default</li>
<li>Enable email again by matching the given hostname with the current server hostname. </li>
<li>Override the <code>$to</code> address (or multiple, comma sperated addresses), so you can use that for testing purposes.</li>
</ul>
Note: The plugin performs a check on the <code>$_SERVER['HTTP_HOST']</code> variable.

WordPress Disable Email plugin

Disables all email through wp_mail() on current installation. Email will by disabled by default, but can be overridden in the settings.

Gagan Deep Singh

guillaumemolter

livearoha

This plugin enables WordPress blogs of any size to deliver and track WordPress notification emails reliably, with minimal setup time and zero maintenance. No more SMTP errors or delivery problems with Postmark!
If you don’t already have a free Postmark account, you can get one in minutes. Every account comes with thousands of free email sends.
PLEASE NOTE: This is not official PostMarkApp Plugin. This plugin is a copy of the Official Postmarkapp plugin which had several critical bugs. The Official Plugin developers have not addressed these bugs for some time now, so I created a new plugin to solve those issues.
Issues fixed(from the official version):
<ul>
<li>Fixed the Connection Timeout bug</li>
<li>Fixed the Fatal Error due to incorrect usage of WP_Error object</li>
<li>Fixed the issue while parsing the headers sent as array to the wp_mail function</li>
<li>Fixed the breaking of plaintext when force html option is selected</li>
</ul>
New Features added:
<ul>
<li>Support for adding Cc, Bcc, and Reply-To headers</li>
<li>Support to filter the arguments by other plugins like its done in the actual wp_mail() function of WordPress</li>
<li>Auto import settings from the Postmarkapp approved WordPress plugin for easy migration</li>
</ul>
Roadmap:
<ul>
<li>Support for attachments</li>
<li>Handling special characters in Subject</li>
<li>Ability for dynamic “From” addresses by verifying from PostmarkApp</li>
</ul>
To know more about PostMarkApp, please visit this link: http://postmarkapp.com
To get help about PostMarkApp, please visit this link: http://support.postmarkapp.com/

PostmarkApp Email Integrator

Enables your WordPress site to send emails via PostMarkApp API.

WordPress Disable Email plugin vs PostmarkApp Email Integrator