Surbma

CherryPick Studios

This plugin is created especially for Multisite Networks. You can define all variables in the wp-config.php file and it will be valid for all sites in a Multisite. So this is not for a site-by-site configuration plugin. You can install it on a single WordPress install also and it will work perfectly. But if you install it in a Multisite Network, you can only network activate it!
This plugin is working with all SMTP servers and services, like Mailgun, SendGrid, Mandrill, Amazon SES and others.
Required variables:
<ul>
<li><code>SURBMA_SMTP_HOST</code> – External SMTP server.</li>
<li><code>SURBMA_SMTP_USER</code> – User for the SMTP account.</li>
<li><code>SURBMA_SMTP_PASSWORD</code> – Password for the SMTP account.</li>
</ul>
Optional variables:
<ul>
<li><code>SURBMA_SMTP_PORT</code> – Port number for the SMTP server.</li>
<li><code>SURBMA_SMTP_SECURE</code> – Choose SSL or TLS, if necessary for your SMTP server.</li>
<li><code>SURBMA_SMTP_FROM</code> – From email address for all outgoing emails.</li>
<li><code>SURBMA_SMTP_FROMNAME</code> – From name for all outgoing emails.</li>
</ul>
Example configuration:
<pre><code> define('SURBMA_SMTP_HOST','smtp.mailgun.org');
 define('SURBMA_SMTP_USER','postmaster@surbma.com');
 define('SURBMA_SMTP_PASSWORD','bb2b************************4133');
</code></pre>
You can put these lines everywhere before the line, that says: “That’s It. Pencils down”
Do you want to contribute or help improving this plugin?
You can find it on GitHub: <a href="https://github.com/Surbma/surbma-smtp" rel="nofollow ugc">https://github.com/Surbma/surbma-smtp</a>
You can find my other plugins and projects on GitHub:
<a href="https://github.com/Surbma" rel="nofollow ugc">https://github.com/Surbma</a>
Please feel free to contribute, help or recommend any new features for my plugins, themes and other projects.
Do you want to know more about me?
Visit my webpage: <a href="http://surbma.com/" rel="nofollow ugc">Surbma.com</a>

Surbma | SMTP

External SMTP mail configuration via global variables in wp-config.php.

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.

Surbma | SMTP vs Email Override for Mailgun