Mail Form Help

[marshmellows_17]

I have the following code:

<?php
include "header.php";
?>
<?php
if (isset($_REQUEST['email']))
//if "email" is filled out, send email
{
//send email
$email = $_REQUEST['email'] ;
$subject = $_REQUEST['subject'] ;
$message = $_REQUEST['Yourname'] ;
$message .= $_REQUEST['phonenumber'];
$message .= $_REQUEST['emailaddress'];
mail( "[email protected]", "Subject: $subject",
$message , "From: $email" );
echo "Thank you for using our mail form";
}
else
//if "email" is not filled out, display the form
{
echo "<form method='post' action='bookapp.php'>

Email: <input name='email' type='text' />


Subject: <input name='subject' type='text' />


Name:

<textarea name='Yourname' rows='15' cols='40'>
</textarea>


Phone Number:

<textarea name='phonenumber' rows='15' cols='40'>
</textarea>


E-mail Address:

<textarea name='emailaddress' rows='15' cols='40'>
</textarea>

<input type='submit' />
</form>";
}
?>

<?php
include "footer.php";
?>

 

My problem is that to start with the code is unsafe. When I receive an email after the above form is filled out hotmail thinks the message is dangerous, and I cant remember what php code and where is needed to make the emails appear safe.

 

Also when the emails arrive and i open them (after overriding the warnings) all the answers appear on a single line how do i get it to make each answer appear on a new line ive tried "\n" in various places but cant figure it out.

 

Thank you