Title: TSP Scale Mailer
Author: tspscale
Published: <strong>July 27, 2026</strong>
Last modified: July 27, 2026

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![](https://ps.w.org/tsp-scale-mailer/assets/icon-256x256.png?rev=3624869)

# TSP Scale Mailer

 By [tspscale](https://profiles.wordpress.org/tspscale/)

[Download](https://downloads.wordpress.org/plugin/tsp-scale-mailer.1.0.5.zip)

 * [Details](https://wordpress.org/plugins/tsp-scale-mailer/#description)
 * [Reviews](https://wordpress.org/plugins/tsp-scale-mailer/#reviews)
 *  [Installation](https://wordpress.org/plugins/tsp-scale-mailer/#installation)
 * [Development](https://wordpress.org/plugins/tsp-scale-mailer/#developers)

 [Support](https://wordpress.org/support/plugin/tsp-scale-mailer/)

## Description

TSP Scale Mailer replaces the default WordPress email function (wp_mail) and routes
all outbound emails from your WordPress site through TSP Scale’s REST API.

Unlike standard SMTP plugins that use Port 587 (which is often blocked by cheap 
shared hosting providers like GoDaddy or HostGator), this plugin uses secure HTTPS(
Port 443) to guarantee 100% deliverability.

Features:
 * Bypass strict host firewalls by using our REST API instead of SMTP.*
Lightning fast sending speed. * Send a test email directly from the plugin settings
page. * Full support for HTML emails and plain text.

### External services

This plugin connects to the TSP Scale REST API (api.tspscale.in) to route your outgoing
WordPress emails.

When an email is sent from your WordPress site (e.g., via a contact form, password
reset, or WooCommerce receipt), the plugin securely transmits the email headers,
subject, and body content to the TSP Scale API for immediate delivery. The plugin
also fetches your email templates from the API.

This service is provided by TSP Scale:
 * Terms of Use: https://tspscale.in/legal/
terms * Privacy Policy: https://tspscale.in/legal/privacy

## Installation

 1. Upload the `tsp-scale-mailer` folder to your `/wp-content/plugins/` directory.
 2. Activate the plugin through the ‘Plugins’ menu in WordPress.
 3. Go to **Settings > TSP Scale**.
 4. Enter your TSP Scale API Key and a verified “From” Email address.
 5. Save your settings. You can now use the “Send Test Email” feature to verify everything
    works!

## FAQ

### Do I need a TSP Scale account?

Yes! You must create an account at tspscale.in to get your API key and verify your
domain.

### Why use this instead of WP Mail SMTP?

If your web host blocks outbound SMTP traffic on port 587, WP Mail SMTP will fail
to connect. Our plugin uses standard HTTP REST APIs over Port 443, which is never
blocked by web hosts.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“TSP Scale Mailer” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ tspscale ](https://profiles.wordpress.org/tspscale/)

[Translate “TSP Scale Mailer” into your language.](https://translate.wordpress.org/projects/wp-plugins/tsp-scale-mailer)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/tsp-scale-mailer/),
check out the [SVN repository](https://plugins.svn.wordpress.org/tsp-scale-mailer/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/tsp-scale-mailer/)
by [RSS](https://plugins.trac.wordpress.org/log/tsp-scale-mailer/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.0.0

 * Initial Release.
 * Added native Settings UI.
 * Added wp_mail override to use the /emails/send REST API.
 * Added Test Email functionality.

## Meta

 *  Version **1.0.5**
 *  Last updated **13 hours ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 5.0 or higher **
 *  Tested up to **7.0.2**
 * Tags
 * [deliverability](https://wordpress.org/plugins/tags/deliverability/)[email](https://wordpress.org/plugins/tags/email/)
   [mailer](https://wordpress.org/plugins/tags/mailer/)[smtp](https://wordpress.org/plugins/tags/smtp/)
 *  [Advanced View](https://wordpress.org/plugins/tsp-scale-mailer/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/tsp-scale-mailer/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/tsp-scale-mailer/reviews/)

## Contributors

 *   [ tspscale ](https://profiles.wordpress.org/tspscale/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/tsp-scale-mailer/)