eForm parsing error - Invalid email address

« MODx Parse Error »
MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
 
PHP error debug
  Error: 	mail() [function.mail]: SMTP server response: 501 5.5.4 Invalid Address	 
  Error type/ Nr.: 	Warning - 2	 
  File: 	E:\hshome\arterial\arterial.com.au\microsite\manager\includes\controls\class.phpmailer.php	 
  Line: 	438	 
  Line 438 source: 	$rt = @mail($to, $this->EncodeHeader($this->Subject), $body, $header); 	 
 
Parser timing
  MySQL: 	0.0052 s	(0 Requests)
  PHP: 	0.0500 s	 
  Total: 	0.0552 s	 

[!eForm? &formid=`contactForm` &to=`[email protected]` &tpl=`eContactForm` &report=`eContactFormReport` &thankyou=`eContactFormThanks` &vericode=`1` &subject=`Message from website`!]

<p>To contact us please fill out the details below.</p>
<p><span style="color:#900;">[+validationmessage+]</span></p>
<form method="post" enctype="multipart/form-data" action="[~[*id*]~]">
    <input type="hidden" name="formid" value="contactForm" />
    <p><label accesskey="n" for="Name">Your Name:</label><br />
    <input type="text" name="Name" maxlength="60" eform="Your Name::1" /></p>

    <p><label accesskey="e" for="email">Your Email Address:</label><br />
    <input type="text" name="email" size="40" maxlength="40" eform="Your Email Address:email:1" /></p>
    
    <p><label accesskey="c" for="comments">Comments:</label><br />
    <textarea cols="40" rows="10" name="comments" eform="Comments:html:1"></textarea></p>

        <p>Please enter the anti spam code below:</p>
       <p>
     <img src="[+verimageurl+]" alt="verification code" border="1"/>
     </p>
<p>
      <label accesskey="c" for="vericode">code</label></p>
<p>
      <input type="text" name="vericode" size="20" />
      </p>
<p>
<input type="submit" name="frmGo" value="Send contact form" />
</p>
</form>
    

<p>Below is the contents of a contact form sent from the website:</p>
<table>
<tr><td>Name:</td><td>[+Name+]</td></tr>
<tr><td>Email address:</td><td>[+email+]</td></tr>
<tr valign="top"><td>Comments:</td><td>[+comments+]</td></tr>

</table>

<h3>Thank you for your contacting us.</h3>
<p>A member of our staff will be in contact with you very shortly.</p>
<p>Below is a copy of your message:</p>
<table>
<tr><td><p>Your name:</p></td><td><p>[+Name+]</p></td></tr>
<tr><td><p>Your email address:</p></td><td><p>[+email+]</p></td></tr>
<tr valign="top"><td><p>Your comments:</p></td><td><p>[+comments+]</p></td></tr>
</table>

[!eForm? &formid=`contactForm` &to=`[email protected]` &from=`[(email)]` &tpl=`eContactForm` &report=`eContactFormReport` &thankyou=`eContactFormThanks` &vericode=`1` &subject=`Message from Ferrograd website`!]

[!eForm? &formid=`contactForm` &to=`[email protected]` &from=`[(email)]` &tpl=`eContactForm` &report=`eContactFormReport` &thankyou=`eContactFormThanks` &vericode=`1` &subject=`Message from Ferrograd website`!]