Pop\Mail\Queue::add PHP Method

    public function add($email, $name = null)
    {
        $rcpt = array();
        if (null !== $name) {
            $rcpt['name'] = $name;
        }
        $rcpt['email'] = $email;
        return $this->addRecipients(array($rcpt));
    }

 public function testToString()
 {
     $q = new Queue('*****@*****.**', 'Some One');
     $q->add('*****@*****.**', 'Someone Else');
     $this->assertEquals('Some One <*****@*****.**>, Someone Else <*****@*****.**>', (string) $q);
 }