mail() - emails work but SMS doesn't

Question

I am trying to send SMS using php's mail() function. Below you will find my code. I entered my own email address and my own phone number (it is a Verizon phone so sending an email to my 10 digit number followed by @vtext.com should send the SMS to my phone). I receive the email but not the text message.

#!/usr/bin/php
<?
    require_once("PHPMailer/class.phpmailer.php");

    $mail = new PHPMailer();

    $mail->IsSMTP();
    $mail->Host = "smtp.fas.harvard.edu";

    $mail->SetFrom("[email protected]");
    $mail->AddAddress("##########@vtext.com");
    $mail->AddAddress("[email protected]");

    $mail->Subject = "hello, world";
    $mail->Body = "testing 1 2 3";

    if ($mail->Send() === false)
        die($mail->ErrorInfo . "\n");  

?>

Answer 1

Why don't you use the emails in another way, like:

$mail->AddCC("[email protected]");

Also, are you sure that your SMTP server is not blocked by Gmail? have you tried any other email address?