MAIL -> booleanaddbcc ( string address )
Return TRUE if has been successfully added, FALSE if not.
string address format is "localpart@domainpart.tld".
Example (verification):
$m = new MAIL;
// add "Bcc" mail address
$b = $m->AddBcc('localpart@domainpart.tld');
echo $b ? 'added' : 'error';
Example (deprecated):
$m = new MAIL;
// add "Bcc" mail address
$m->Bcc[] = 'localpart@domainpart1.tld';
// add another "Bcc" mail address
$m->Bcc[] = 'localpart@domainpart2.tld';