Mail list

please i am trying to send email to two recipient, one is in the database and the other is not i have tried this two syntax but they re not working
$to = “$email,”;
$to = $email, “”;

i have resorted using the blind carbon copy

$to = $email.",";

It is important that there is a comma (,) for separation as RvanD85 posted. Also check to make sure $email contains a valid email.