What's the text of the error?
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"Jason B" <email@example.com> wrote in message
> I have an exchange 2000 server running on my system. I am
> part of a corp. office and my mail is routed to my local
> IP address and then my exchange handles the mail. I am
> able to send to any domain I want except JUNO. I am
> getting an smtp error has occured and I am not sure what
> the problem is. All the mail sent to JUNO domain are sent
> back. Can you help?