Contact form doesn't work well

[4554551n]

Hello,

I have a problem with my mailform.php cause I don't receive any emails... I don't know what to do, what exactly should I change?

Can someone help me?

Please note that I've changed real email address into this email@email.com

<?php
function spamcheck($field)
{
//filter_var() sanitizes the e-mail
//address using FILTER_SANITIZE_EMAIL
$field=filter_var($field, FILTER_SANITIZE_EMAIL);

//filter_var() validates the e-mail
//address using FILTER_VALIDATE_EMAIL
if(filter_var($field, FILTER_VALIDATE_EMAIL))
{
return TRUE;
}
else
{
return FALSE;
}
}

if (isset($_REQUEST['email']))
{//if "email" is filled out, proceed

//check if the email address is invalid
$mailcheck = spamcheck($_REQUEST['email']);
if ($mailcheck==FALSE)
{
echo "Invalid input";
}
else
{//send email
$name = $_REQUEST['name'];
$email = $_REQUEST['email'] ;
$subject = $_REQUEST['subject'] ;
$message = $_REQUEST['message'] ;
mail("email@email.com", "Subject: $subject",
$message, "From: $email" );
echo "Mail sent";
?> <meta http-equiv="REFRESH" content="3;url=index.html">  
<?php
}
}
else
{
echo 'Error, try again.';
?> <meta http-equiv="REFRESH" content="3;url=index_6.html">  <?php
}
?>

 

And here is my html code

<form action="../mailform.php" method="post">
<p>Name: <br /></p>
<p><input type="text" name="name" size="30" /></p>
<p>Email:<br /></p>
<p><input type="text" name="email" size="30" /></p>
<p>Subject:<br /></p>
<p><input type="text" name="subject" size="30" /></p>
<p>Message:<br /></p>
<p><textarea cols="50" rows="10" name="message"></textarea></p>
<p><input type="submit" value=" Send " /></p>
</form>                                                                                                   

 

Thank you.

[PFMaBiSmAd]

The From: email address must be a valid mail box at the sending mail server. You are putting the visitors entered email in as the From: address.

 

Put a valid email box at the sending mail server in as the From: address and put the visitors entered email address in as a Reply-to: address.

[4554551n]

You are telling me to change this

$name = $_REQUEST['name'];
$email = $_REQUEST['email'] ;
$subject = $_REQUEST['subject'] ;
$message = $_REQUEST['message'] ;
mail("email@email.com", "Subject: $subject",
$message, "From: $email" );

 

into

 

$name = $_REQUEST['name'];
$email = $_REQUEST['email'] ;
$reply-to = $_REQUEST['reply-to'] ;
$subject = $_REQUEST['subject'] ;
$message = $_REQUEST['message'] ;
mail("email@email.com", "Subject: $subject",
$message, "From: $email", "Reply-to: $reply-to" );

 

What do u mean by "put valid email box"?