Auto Backup plugin - How to add "cc" mail field

Hi, All.

I tried adding the "cc" mail field option to the Auto Backup plugin and am not receiving the cc mail.

I simply added the "cc" line shown here, but perhaps I'm oversimplifying?

// email attachment
sendMessage([
'from' => "servermail@domain.com",
'to' => "emailone@domain.com",
'cc' => "emailtwo@domain2.com",  // I ADDED THIS
'subject' => "CMS Backup - ABC",
'text' => "Automatically generated backup file.",
'attachments' => [
$filename => $data,
],
]);

Tested with 1.05 Beta and 1.04. Just wondering if it can be done - would be nice, but not critical.

Thanks for any ideas!
Deborah