Email Not Reaching its destination

  • From: "NPerez" <nperez@xxxxxxxxxxxxxxx>
  • To: exchangelist@xxxxxxxxxxxxx
  • Date: Fri, 18 Jun 2004 09:46:58 -0600

I keep getting these errors when sending emails to different reciepients.

"There was a SMTP communication problem with the recipient's email server.
 Please contact your system administrator.
< #5.5.0 smtp;553 sorry, that domain isn't in my list 
of allowed rcpthosts (#5.7.1)>"

Can anyone direct on how to resolve this problem?

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