RE: RE: WELCOME to [email protected]

Hallo everybody, Thank you Edward for answer!  Indeed, there is a big chance that the filter i am talking about in the Original message will
remove a valid email addresses. However, there has to be at least two of the following characters!#$%&'*+-/=?^_`{|}~@.[] in this email address.Does someone agree with this statement?
 ===============================================================================================================================================================> From: [email protected]
> To: [email protected]
> Date: Wed, 10 Apr 2013 12:34:46 -0400
> Subject: RE: [PHP-WIN] RE: WELCOME to [email protected]
> 
 Not regarding your question, just wanted to point out that your filter will
remove valid email addresses.
> 
> > -----Original Message-----
> > From: Egbert Husban [mailto:[email protected]]
> > Sent: Wednesday, April 10, 2013 6:37 AM
> > To: [email protected]
> > Subject: RE: [PHP-WIN] RE: WELCOME to [email protected]
> > 
> > 
> >  From: [email protected]
> > To: [email protected]
> > Subject: RE: [PHP-WIN] RE: WELCOME to [email protected]
> > Date: Tue, 9 Apr 2013 15:31:28 +0200
> > 
> > Hai man,
> > 
> > I will aks some questions about an e-mail script. The core of this
> > srcipt is to check whether the e-mail-server of the client gives
> > response.
> > If it does, than the e-mailadress of the client is true.
> > 
> > Let me start with a few lines code.
> > <?php
if (isset($_POST['submit'])){
error_reporting(0);
$email = $_POST['too emailadres']; ingevulde email-adres
$look = filter_var($email, FILTER_SANITIZE_EMAIL);
$foutetekens=0;
if($email==$look){
......
?>
> > 
> > This is the first step of the script.
FILTER_SANITIZE_EMAIL   Remove all characters except letters, digits
and !#$%&'*+-/=?^_`{|}~@.[].
> > Is it necessary too use FILTER_SANITIZE_EMAIL, when we know that it
> > doesn't remove everything (!#$%&'*+-/=?^_`{|}~) out from an e-
> > maildress?
> > 
> > Greetings,
> > 
> > Egbert.