How to check your SMTP Settings

/*
Plugin Name: SMTP Test Email
Description: A simple plugin to test sending emails with your current WordPress SMTP settings.
Version: 1.0
Author: Your Name
*/

if ( ! defined( 'ABSPATH' ) ) exit;

// Add admin menu
add_action('admin_menu', function() {
    add_menu_page(
        'SMTP Test Email',
        'SMTP Test Email',
        'manage_options',
        'smtp-test-email',
        'smtp_test_email_page',
        'dashicons-email'
    );
});

// Admin page
function smtp_test_email_page() {
    if (isset($_POST['smtp_test_email_nonce']) && wp_verify_nonce($_POST['smtp_test_email_nonce'], 'smtp_test_email_action')) {
        $to = sanitize_email($_POST['smtp_test_email_to']);
        $subject = "SMTP Test Email from " . get_bloginfo('name');
        $message = "This is a test email sent at " . date("Y-m-d H:i:s");

        if (wp_mail($to, $subject, $message)) {
            echo '<div class="notice notice-success"><p>Email successfully sent to '. esc_html($to) .'</p></div>';
        } else {
            echo '<div class="notice notice-error"><p>Failed to send email. Check your SMTP settings.</p></div>';
        }
}
?>
<div class="wrap">
    <h1>SMTP Test Email</h1>
    <form method="post">
        <?php wp_nonce_field('smtp_test_email_action', 'smtp_test_email_nonce'); ?>
        <table class="form-table">
            <tr>
                <th><label for="smtp_test_email_to">Recipient Email</label></th>
                    <td><input type="email" name="smtp_test_email_to" id="smtp_test_email_to" class="regular-text" required></td>
             </tr>
        </table>
        <?php submit_button('Send Test Email'); ?>
    </form>
</div>

}

How to Use

1. Create a new folder in wp-content/plugins/ called smtp-test-email.

2. Inside it, create a file named smtp-test-email.php.

3. Paste the code above into that file or download plugin HERE.

4. Go to WordPress Admin → Plugins → Activate “SMTP Test Email”.

5. A new menu SMTP Test Email will appear in your admin sidebar.

6. Enter a recipient email and click Send Test Email.

   We can fix SMTP issues for a $30 USD  service fee.