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<p>There are many SMTP plugins for WordPress, but there are still many troubleshoots when sending email messages via WordPress. With WP Mail REST-API you can send emails outside of WordPress and this reduces the number of failed sendings.</p>
<p>Create a webhook (trigger) on Zapier, Integromat, Automate, Workato, Microsoft Flow or a service of your choice. Save your Webhook directly in WP Mail REST-API and click on Test Webhook. Now change to your Webhook provider and create an SMTP dispatch as action.<br />
WP Mail REST-API provides you with the following variables for each dispatch:</p>
<ul>
<li>to</li>
<li>subject</li>
<li>message in html</li>
<li>message in text</li>
<li>from name</li>
<li>from email</li>
<li>attachments</li>
</ul>
<p>WP Mail REST-API is the answer to the often asked question, “How to fix WordPress not sending Email Issue.<br />
There are many reasons why sending emails with WordPress fails. For example, your WordPress firewall or your hosting company’s firewall may prevent you from sending messages for security reasons. If your message is sent externally via Webhook and an SMTP as action, you have simply solved your problem.</p>
<p>Of course you can also connect WP Mail REST-API with Outlook, Gmail, Hotmail, SMTP and other providers. If you want, you can also register and control every sent email in Google Sheet (as an action).</p>


WP Mail REST-API

There are many SMTP plugins for Wordpress, but there are still many troubleshoots when sending email messages via Wordpress.

Mesh Creation

<p>Mesh SMTP helps route WordPress emails through an SMTP server for better deliverability and reliability.</p>
<p>It is built for site owners, agencies, and developers who want a lightweight SMTP plugin with a simple and modern admin interface.</p>
<p>Version 1.4.0 adds a guided four-step setup wizard, safe export/import tools for reusable SMTP settings, clearer provider guidance, and a more polished admin experience.</p>
<h4>Features</h4>
<ul>
<li>Guided four-step setup wizard for choosing a provider, saving SMTP credentials, sending a test email, and finishing with a quick confirmation</li>
<li>Simple SMTP configuration for host, port, encryption, username, password, From Email, and From Name</li>
<li>Provider presets with auto-detect help for known email domains, SMTP hosts, and site mail-routing hints</li>
<li>Test email tool with clear success and error feedback</li>
<li>Lightweight recent email activity log with the latest 50 entries stored and the newest 10 shown in admin</li>
<li>Last failed email summary card for faster troubleshooting</li>
<li>Copyable diagnostic summary for support requests and debugging</li>
<li>wp-config.php constant overrides for secure deployment-based SMTP settings</li>
<li>Safe export and import tools for reusing settings across sites</li>
<li>Status snapshot with current SMTP configuration summary</li>
<li>Better setup hints, stronger sender guidance, and practical provider notes for popular services</li>
<li>Clean and modern admin UI</li>
<li>Capability checks, nonce verification, and sanitized settings handling</li>
<li>Passwords are not shown back in the UI after saving</li>
<li>Saved SMTP details stay intact when you temporarily disable the SMTP override</li>
<li>Works with WordPress emails sent through <code>wp_mail()</code></li>
</ul>
<h4>Supported provider presets</h4>
<ul>
<li>Gmail</li>
<li>Outlook / Microsoft 365</li>
<li>Zoho Mail</li>
<li>Hostinger</li>
<li>SendGrid</li>
<li>Mailgun</li>
<li>Custom SMTP</li>
</ul>
<h4>Why use Mesh SMTP?</h4>
<p>Many WordPress sites face email delivery issues such as contact form emails not arriving, password reset emails failing, or transactional emails landing in spam. Mesh SMTP gives you a straightforward way to connect WordPress to a trusted SMTP provider and improve email reliability.</p>
<p>The plugin focuses on practical setup, safer configuration reuse across sites, lightweight diagnostics, and a clean WordPress-friendly experience.</p>
<h4>Security notes</h4>
<ul>
<li>Settings are processed with WordPress sanitization and nonce verification</li>
<li>Access is restricted to authorized administrators</li>
<li>SMTP debug output is not exposed in the admin UI</li>
<li>Saved passwords are not displayed back in the settings form after saving</li>
<li>wp-config.php constants can override saved settings for more controlled deployments</li>
</ul>


Mesh SMTP

A lightweight WordPress SMTP plugin with guided setup, safe settings reuse, and practical email diagnostics.

WP Mail REST-API vs Mesh SMTP