BaiatuLuTata

This plugin overrides the default WordPress email sending function with MailGuns’s Mail Send API.
Key Features:
<ul>
<li>Toggle Email Override for Mailgun on/off</li>
<li>Enter your Mailgun API key and domain</li>
<li>Customize the “From” email and name</li>
<li>Send a test email directly from the settings page</li>
<li>Clean and native WordPress admin UI</li>
</ul>
<h3>External Services</h3>
This plugin integrates with the <a href="https://www.mailgun.com/" rel="nofollow ugc">Mailgun</a> email delivery service to send outgoing emails via its API instead of the default <code>wp_mail()</code> function.
When enabled, the plugin communicates with the following Mailgun API endpoint: https://api.mailgun.net/v3/YOUR_DOMAIN/messages
Data sent to Mailgun includes: 
– Sender name and email 
– Recipient email(s) 
– Email subject 
– Message body (text or HTML) 
– Optional headers (Cc, Bcc)
The plugin requires a valid Mailgun API key and domain to function. These credentials are stored in your WordPress database and used only to authenticate API requests to Mailgun.
Privacy Notice: 
By using this plugin, you agree to Mailgun’s <a href="https://www.mailgun.com/terms/" rel="nofollow ugc">Terms of Service</a> and <a href="https://www.mailgun.com/privacy-policy/" rel="nofollow ugc">Privacy Policy</a>. Ensure your use of Mailgun complies with local privacy laws and your own data protection policies.

Email Override for Mailgun

Replaces WordPress wp_mail() with MailGun's API. Adds a settings page to manage API key, sender info, and test email functionality.

MagicWP.io

Magic API Email replaces the default WordPress email system (<code>wp_mail()</code>) with a direct API connection to your chosen transactional email provider. No SMTP configuration needed — just paste your API key and you’re ready to go.
Supported Providers:
<ul>
<li><a href="https://resend.com" rel="nofollow ugc">Resend</a> — Modern email API for developers</li>
<li><a href="https://mailgun.com" rel="nofollow ugc">Mailgun</a> — Reliable transactional email</li>
<li><a href="https://postmarkapp.com" rel="nofollow ugc">Postmark</a> — Fast, deliverable transactional email</li>
<li><a href="https://mailtrap.io" rel="nofollow ugc">Mailtrap</a> — Email delivery platform with sandbox testing</li>
<li><a href="https://useplunk.com" rel="nofollow ugc">Plunk</a> — Email API for developers</li>
</ul>
Features:
<ul>
<li>Per-provider settings — API key, From Email, and From Name are stored independently for each provider. Switching providers never overwrites another provider’s credentials.</li>
<li>Test email — Send a test email directly from the settings page to verify your configuration.</li>
<li>Secure — All inputs are sanitized and validated. API keys are stored as password fields.</li>
<li>Lightweight — No dependencies, no bloat. Three focused class files.</li>
<li>Developer-friendly — Falls back to default <code>wp_mail()</code> if no API key is configured.</li>
</ul>
<h3>External services</h3>
This plugin acts as a bridge between your WordPress site and your chosen transactional email provider. By design, instead of sending emails via standard <code>wp_mail()</code>, this plugin sends the content of your outgoing emails via an HTTPS API request to the provider you select in the settings.
Depending on your configuration, the plugin connects to one of the following APIs: 
* Resend (api.resend.com) – <a href="https://resend.com/terms" rel="nofollow ugc">Terms of Service</a> | <a href="https://resend.com/privacy" rel="nofollow ugc">Privacy Policy</a> 
* Mailgun (api.mailgun.net) – <a href="https://www.mailgun.com/terms" rel="nofollow ugc">Terms of Service</a> | <a href="https://www.mailgun.com/privacy" rel="nofollow ugc">Privacy Policy</a> 
* Postmark (api.postmarkapp.com) – <a href="https://postmarkapp.com/terms-of-service" rel="nofollow ugc">Terms of Service</a> | <a href="https://postmarkapp.com/privacy-policy" rel="nofollow ugc">Privacy Policy</a> 
* Mailtrap (api.mailtrap.io) – <a href="https://mailtrap.io/terms" rel="nofollow ugc">Terms of Service</a> | <a href="https://mailtrap.io/privacy-policy" rel="nofollow ugc">Privacy Policy</a> 
* Plunk (api.useplunk.com) – <a href="https://useplunk.com/terms" rel="nofollow ugc">Terms of Service</a> | <a href="https://useplunk.com/privacy" rel="nofollow ugc">Privacy Policy</a>
What data is sent and when? 
When any plugin or WordPress core feature attempts to send an email (e.g. password resets, contact form submissions, order confirmations), the data (including the recipient’s email address, sender information, email subject, and email body content) is transmitted securely to your configured provider in order to deliver the email. No data is sent if you have not configured an API key for a provider.

Magic API Email

Send WordPress emails through a transactional API provider: Resend, Mailgun, Postmark, or Mailtrap. No SMTP needed.

Email Override for Mailgun vs Magic API Email