From: Mail Delivery System <MAILER-DAEMON@mydomain.com>
Subject: Undelivered Mail Returned to Sender
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This is the mail system at host undead0.
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 mail system
<firstname.lastname@example.org>: host smtp.cybergnostic.com[18.104.22.168] said: 504 5.5.2
<undead0>: Helo command rejected: need fully-qualified hostname (in reply
to RCPT TO command)
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Reporting-MTA: dns; undead0
X-Postfix-Sender: rfc822; email@example.com
Arrival-Date: Fri, 5 Dec 2008 14:33:41 -0500 (EST)
Final-Recipient: rfc822; firstname.lastname@example.org
Remote-MTA: dns; smtp.cybergnostic.com
Diagnostic-Code: smtp; 504 5.5.2 <undead0>: Helo command rejected: need
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