How to change mail head wordpress in wordpress mail

In WordPress, the default mail handler is wp_mail() function, which uses the PHP mail() function to send emails. However, you can change the mail handler to use a different mail service or plugin to send emails. Here are a few ways to do it:

Method 1: Using a plugin

You can install a plugin like WP Mail SMTP or Easy WP SMTP that allows you to configure your mail settings and use a different mail service like Gmail, Outlook, or Sendgrid.

Install and activate the plugin.
Go to the plugin's settings page and configure your mail settings.
Choose the mail service you want to use (e.g., Gmail, Outlook, Sendgrid).
Enter your mail service credentials (e.g., username, password, SMTP server).
Save the changes.

Method 2: Using a custom mail handler

You can create a custom mail handler by creating a PHP file in your WordPress theme or plugin directory. This file should contain a function that sends emails using a different mail service or plugin.

For example, you can create a file called custom-mail-handler.php in your theme directory with the following code:

<?php
function custom_mail_handler($to, $subject, $message, $headers) {
    // Use a different mail service or plugin to send the email
    // For example, you can use the PHPMailer library
    require_once 'PHPMailer/PHPMailer.php';
    $mail = new PHPMailer();
    $mail->isSMTP();
    $mail->Host = 'smtp.gmail.com';
    $mail->Port = 587;
    $mail->SMTPAuth = true;
    $mail->Username = 'your-gmail-username';
    $mail->Password = 'your-gmail-password';
    $mail->setFrom('your-gmail-username', 'Your Name');
    $mail->addAddress($to);
    $mail->Subject = $subject;
    $mail->Body = $message;
    $mail->AltBody = $message;
    $mail->send();
}

Then, in your WordPress functions.php file, you can add the following code to use the custom mail handler:

add_filter('wp_mail', 'custom_mail_handler');

Method 3: Using a filter

You can use a filter to modify the wp_mail() function and change the mail handler. For example, you can use the wp_mail filter to modify the wp_mail() function and use a different mail service or plugin.

For example, you can add the following code to your WordPress functions.php file:

function custom_wp_mail($args) {
    // Use a different mail service or plugin to send the email
    // For example, you can use the PHPMailer library
    require_once 'PHPMailer/PHPMailer.php';
    $mail = new PHPMailer();
    $mail->isSMTP();
    $mail->Host = 'smtp.gmail.com';
    $mail->Port = 587;
    $mail->SMTPAuth = true;
    $mail->Username = 'your-gmail-username';
    $mail->Password = 'your-gmail-password';
    $mail->setFrom('your-gmail-username', 'Your Name');
    $mail->addAddress($args['to']);
    $mail->Subject = $args['subject'];
    $mail->Body = $args['message'];
    $mail->AltBody = $args['message'];
    $mail->send();
    return true;
}
add_filter('wp_mail', 'custom_wp_mail');

Note that in all cases, you'll need to configure your mail service or plugin to allow less secure apps to access your account, if you're using Gmail or another Google service.

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How to change mail head wordpress in wordpress mail