Hjælp til formmail!

Hej,

Jeg har to filer til min formmail:

form.php:

<link href="style.css" rel="stylesheet" type="text/css">
<form name="form" method="POST" action="sendmail.php">
<table width="65%" height="132" border="0" align="center">
    <tr>
      <td height="1" class="b"><strong>Fornavn:</strong></td>
      <td height="1"><input name="navn" type="text" class="b" id"navn" style="width:265px; height:18px; font-family:Tahoma; font-size:10px; color:#797F81" ssize="45"></td>
    </tr>
    <tr>
      <td height="1" class="b"><strong>Efternavn:</strong></td>
      <td height="1"><input name="enavn" type="text" class="b" id="enavn" style="width:265px; height:18px; font-family:Tahoma; font-size:10px; color:#797F81" ssize="45"></td>
    </tr>
    <tr>
      <td width="25%" height="1" class="b"><strong>Telefon:</strong></td>
      <td width="" height="1"><input name="tele" type="text" class="b" id="tele" style="width:265px; height:18px; font-family:Tahoma; font-size:10px; color:#797F81" maxlength="8" ssize="45"></td>
    </tr>
    <tr>
      <td height="1" class="b"><strong>Fax:</strong></td>
      <td height="1"><input name="fax" type="text" class="b" id="fax" style="width:265px; height:18px; font-family:Tahoma; font-size:10px; color:#797F81" size="45" maxlength="8"></td>
    </tr>
    <tr>
      <td width="" height="1" class="b"><strong>E-mail:</strong></td>
      <td width="" height="1"><input name="email" type="text" class="b" id="email" style="width:265px; height:18px; font-family:Tahoma; font-size:10px; color:#797F81"  size="45"></td>
    </tr>
    <tr>
      <td width="" height="110" class="b"><strong>Meddelse:</strong></td>
      <td width="" height="110"><textarea name="tekst" textarea style="width:265px; overflow:auto; height:150px; font-family:Tahoma; font-size:10px; color:#797F81" cols="35" rows="5" class="b" id="tekst"></textarea></td>
    </tr>
    <tr>
      <td width="" height="1"></td>
      <td width="" height="1"><input type="image" src="images/send.jpg" value="Send" name="B1"> &nbsp;</td>
    </tr>
  </table>

sendmail.php:
<?PHP $afsenders_ip = $_SERVER['REMOTE_ADDR']; ?>

<link href="style.css" rel="stylesheet" type="text/css">
<?php

$til = "********@gmail.com";
$fra = "personen"; 
$emne = "Mail";
$body = "Fornavn: " . $_POST[navn];
$body .= "\nEfternavn: " . $_POST[enavn];
$body .= "\nTelefon: " . $_POST[tele];
$body .= "\nFax: " . $_POST[fax];
$body .= "\nE-mail: " . $_POST[email];
$body .= "\nMeddelse:\n" . $_POST[tekst];
$ip = "IP-adressen er: $afsenders_ip";


mail($til,$emne,$body,$fra,$ip); 
print "<p class='formmail'><strong>Vi takker for mailen</strong></p>";
?>

..... Da jeg så sender en test e-mail, så får jeg en fejlmelding:

Warning: mail(): SAFE MODE Restriction in effect. The fifth parameter is disabled in SAFE MODE. in /customers/****************.dk/****************.dk/httpd.www/sendmail.php on line 20

Det har noget med <?PHP $afsenders_ip = $_SERVER['REMOTE_ADDR']; ?> at gøre... Hvad kan jeg gøre? (PS. jeg er hosted ved B-one)

På forhånd tak,
Alexander.