Mesh Creation

Mesh SMTP helps route WordPress emails through an SMTP server for better deliverability and reliability.
It is built for site owners, agencies, and developers who want a lightweight SMTP plugin with a simple and modern admin interface.
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.
<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>
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.
The plugin focuses on practical setup, safer configuration reuse across sites, lightweight diagnostics, and a clean WordPress-friendly experience.
<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.

mmediasoftwarelab

Deliverability Inspector is a free diagnostic tool that helps you verify your email authentication and deliverability configuration. Ensure your emails reach the inbox by checking all critical DNS records and SMTP settings.
Key Features:
<ul>
<li>SPF Record Check – Verify Sender Policy Framework configuration</li>
<li>DKIM Verification – Check DomainKeys Identified Mail with custom selector support</li>
<li>DMARC Policy Check – Validate Domain-based Message Authentication</li>
<li>MX Records – Confirm mail exchange servers are configured</li>
<li>PTR/Reverse DNS – Check server IP reverse DNS lookup</li>
<li>SMTP Test – Send test emails to verify mail delivery works</li>
</ul>
Perfect For:
<ul>
<li>WordPress site owners sending transactional emails</li>
<li>Email marketers ensuring deliverability</li>
<li>Developers setting up new WordPress installations</li>
<li>Anyone troubleshooting email delivery issues</li>
</ul>
Why Use Deliverability Inspector?
Email deliverability is critical for WordPress sites. Whether you’re sending order confirmations, password resets, or newsletters, proper email authentication prevents your messages from landing in spam folders.
This plugin provides a comprehensive dashboard showing the status of all major email authentication protocols in one place, with actionable recommendations for fixes.
Free & Open Source
Deliverability Inspector is completely free with no premium upsells required for core functionality. Use it to verify your email setup is production-ready.
Works With M Media Dispatch
Once your deliverability checks pass, consider using <a href="https://www.mmediasoftwarelab.com/product/mmedia-dispatch/" rel="nofollow ugc">M Media Dispatch</a> to send professional email campaigns via your own SMTP server – no recurring email marketing costs!
<h3>External services</h3>
This plugin connects to Google’s public DNS over HTTPS (DoH) API as a fallback when the server’s native DNS resolver cannot retrieve records.
Service: Google Public DNS over HTTPS 
Purpose: Resolving TXT, MX, and A DNS records for the domain being checked (SPF, DKIM, DMARC, MX lookups) when PHP’s <code>dns_get_record()</code> returns no results. 
What is sent: The domain name being queried and the DNS record type requested. 
When it is sent: Only when native DNS resolution fails for a given check. No data is sent on most servers where native DNS works correctly. 
Provider: Google LLC 
Terms of service: https://developers.google.com/terms 
Privacy policy: https://policies.google.com/privacy
No personal user data (names, emails, IP addresses of site visitors, etc.) is ever sent to this service – only the domain name being inspected.
<h3>Privacy Policy</h3>
Deliverability Inspector performs DNS lookups and optional SMTP tests using your WordPress server. No data is sent to external services except:
<ul>
<li>DNS queries to public DNS servers (standard internet protocol)</li>
<li>Optional test email via your configured SMTP server</li>
</ul>
No personal data is collected, stored, or transmitted to M Media or any third parties.
<h3>Support</h3>
For support, visit <a href="https://www.mmediasoftwarelab.com/support/" rel="nofollow ugc">M Media Support</a>
<h3>Credits</h3>
Developed by <a href="https://www.mmediasoftwarelab.com/" rel="nofollow ugc">M Media</a>

M Media Email Deliverability Inspector

Comprehensive email deliverability diagnostics tool - checks SPF, DKIM, DMARC, PTR, MX records, and SMTP configuration.

Mesh SMTP vs M Media Email Deliverability Inspector