This is the Postfix program at host ion.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

			The Postfix program

<[email protected]>: host cindyli.com[216.14.80.182] said: 504 <ion>: Helo
    command rejected: need fully-qualified hostname (in reply to RCPT TO
    command)
Reporting-MTA: dns; ion
X-Postfix-Queue-ID: 2EB254C1C8
X-Postfix-Sender: rfc822; [email protected]
Arrival-Date: Wed, 28 Mar 2007 10:21:12 -0700 (PDT)

Final-Recipient: rfc822; [email protected]
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; host cindyli.com[216.14.80.182] said: 504 <ion>:
    Helo command rejected: need fully-qualified hostname (in reply to RCPT TO
    command)