MS Exchange 2000 : Recipient address rejected: User unknown in relay recipient table

Hello,

I run MS Windows 2000 Exchange Server.
Just added two users and created mailboxes for them, Logged on as well so mailbox is created.
There are mx records for this.  
I have run the RECIPIENT UPDATE Service and REBUILT the tables as well.
But sending mail from outside to these mailboxes results in this error message:
 PERM_FAILURE: SMTP Error (state 13): 550 : Recipient address rejected: User unknown in relay recipient table

Anyone know of an answer?

Best Regards,
G
expertsgerritAsked:
Who is Participating?
 
peakpeakCommented:
If those two users are the only ones using the MX record, then I'd suggest looking at this DNS issue with NSLookup or try http://www.dnsstuff.com/ (you have to scroll down a bit). Select Email test.
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peakpeakCommented:
Can you send email internally? Are these users the only ones on the MX records? Otherwise, can you send to other users with this MX?
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expertsgerritAuthor Commented:
Hello peakpeak;
replies to both your questions: positive and positive
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SembeeCommented:
That is not an Exchange message. Therefore it is being caused by something else.
Do emails come in directly or through another server/appliance/application? If so you need to look there for the error.

Simon.
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