5 pts.
 Mail error 554 Exchange Server 2007
I user exchange server 2007 as my email server. I have installed it one month ago and it's working properly. One of the users sent a mail yesterday and got the following error messages #554 Transaction failed, DATA reply code ##, the following organisation has refused your message: vex.vtel.ae. What can be the problem ? Thanks for your help.

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ASKED: July 24, 2008  10:01 AM
UPDATED: July 24, 2008  2:56 PM

Answer Wiki:
It is likely the receiving system has some type of filter that rejects messages. You will need to contact the postmaster of that system and find out why the message was rejected. Try reading the following blog... http://www.exchangelog.info/2007/05/error-smtp554-552-invalid-data-in.html
Last Wiki Answer Submitted:  July 24, 2008  2:56 pm  by  Labnuke99   32,645 pts.
All Answer Wiki Contributors:  Labnuke99   32,645 pts.
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As a precaution run your best practices analyzer in the exchange server Exchange Manager Console under toolbox. Also if you have yet done so plan to upgrade to SP1 as soon as possible as many things that were left off in the original RTM were added in with the service pack.

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