Simple PHP Mail test

test-email.php

<?php
    # Source: https://www.conetix.com.au/support/article/simple-php-mail-test
    # Howto: ssh login, then php test-email.php
    ini_set( 'display_errors', 1 );
    error_reporting( E_ALL );
    $from = "emailtest@YOURDOMAIN";
    $to = "YOUREMAILADDRESS";
    $subject = "PHP Mail Test script";
    $message = "This is a test to check the PHP Mail functionality";
    $headers = "From:" . $from;
    mail($to,$subject,$message, $headers);
    echo "Test email sent";
?>