How can the issue of the email sender not being able to change be addressed effectively in PHP?

Issue: The email sender not being able to change in PHP can be addressed effectively by setting the "From" header in the mail function to the desired email address. This will ensure that the email appears to be sent from the specified address. PHP Code Snippet:

$to = "recipient@example.com";
$subject = "Test Email";
$message = "This is a test email.";
$headers = "From: sender@example.com";

mail($to, $subject, $message, $headers);