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SMTP 554 Error

Whenever sending mail to a specific domain i receive the following NDR:

I'm using Exchange 2003 Enterprise

SMTP 554 This message has not been correctly formatted.>

What does this mean and how do i fix it?  Also it doesn't happen to all domain i have only seen it on one specific domain that we try to send to.
1 Solution
If you copy the text of one of your rejected messages, create a new email via Gmail/Yahoo/Hotmail/etc., paste in your copied text, and send the message to the problem domain, is the behavior the same or different?
Could be that headers or body has some very particular part that doesn't go down well with that server. What format are your messages; HTML, RTF, plain text?
max_castilloAuthor Commented:
I have been told that header information could be the culprit but i have no clue as how to configure the header information on the Exchange server.  If you could instruct on how to access that part would be very helpful.  I've tried sending the same msg HTML and Plain txt formats.  The cut and paste from my MSN account goes through just fine, no NDR from my msn account.

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