Confusing NDR

  • From: "Elias, Delores" <delias@xxxxxxxxxx>
  • To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 17 Oct 2002 14:17:44 -0400

I have a few users trying to send email to a client and his secretary.
They've been sending to them fine and just a couple of days ago they started
getting NDRs when they send to them.  I spoke with a tech from that company
and he assured me that nothing changed for them and that they receive emails
from others just fine.

I looked on MS KB and while I did find some articles, none of them were
helpful.  Below is the message received when we try to send to this company:

Your message did not reach some or all of the intended recipients.

      Subject:  Test
      Sent:     10/16/2002 12:09 PM

The following recipient(s) could not be reached:

      '______________' on 10/16/2002 12:09 PM
            The recipient name is not recognized
        The MTS-ID of the original message is: c=US;a=


I can't figure out what happened.  I double-checked their email addresses -
they were correct.  We can receive mail from them without a problem, but if
we try to reply we get an NDR.

Any help would be appreciated.


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