Send emails via SMTP instead PHP mail

I have a plugin thats use The PHP mail() function to send emails from users (authors) in multisite ,how can I set it to use my SMTP configurations ? I don’t want to install external plugins

public static function send_email($details) {
    // get email text
    $emailtext = get_option('email_message');
    $emailtext = str_replace("[FIRST_NAME]", $details["first_name"], $emailtext);
    $emailtext = str_replace("[LAST_NAME]", $details["last_name"], $emailtext);
    $emailtext = str_replace("[DOWNLOAD_LINK]", $details["download_link"], $emailtext);

    $emailtext = $emailtext . "\n\n text mail text mail text mail:\n" . $details["download_link"];

    // fantastic, now send them a message
    $to      = $details["email"];
    $subject = "Download link ";
    $message = $emailtext;
    $headers = 'From: '. get_option('download_email_from_name') .' <' . get_option('download_email_from_email') . '>' . "\r\n Reply-To: " . get_option('download_email_from_name') . ' <' . get_option('download_email_from_email') . '>' . "\r\n X-Mailer: domain.tld";

    wp_mail($to, $subject, $message, $headers);
  }

I want to use a code like this but only for that’s plugin :

add_action( 'phpmailer_init', 'wpse8170_phpmailer_init' );
function wpse8170_phpmailer_init( PHPMailer $phpmailer ) {
    $phpmailer->Host = 'smtp.server.com';
    $phpmailer->Port = 25; // could be different
    $phpmailer->Username = 'username'; // if required
    $phpmailer->Password = 'password'; // if required
    $phpmailer->SMTPAuth = true; // if required
    $phpmailer->SMTPSecure = 'ssl'; // enable if required, 'tls' is another possible value

    $phpmailer->IsSMTP();
}

I’ve tried plugins like “WP Mail SMTP” “WP SMTP” “Easy WP SMTP” “WP SMTP Config” noone is compatible for my case in Multisite