My basic script to send mail doesn't work when sending to Yahoo or Hotmail.

I'm sure it's a simple fix, any thoughts?

<html><title>Email Sent to Webmaster</title>
<?php
mail("myemail@hotmail.com", $subject, $message, "from: $from");
("Content-Type:example: text/html; charset=iso-8859-1");
?></html>

    See if it works when you change it to:

    mail("myemail@hotmail.com", $subject, $message,
    "From: $from\r\n"
    ."Content-Type:example: text/html; charset=iso-8859-1");

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