Most likely the other server is doing a reverse lookup and requires a) a
fully-qualifed domain name and b) that the supplied name lookup in reverse
to match the IP address of the machine identifying itself as such.
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: "Exchange Discussions" <[EMAIL PROTECTED]>
Sent: Wednesday, September 19, 2001 3:58 AM
Subject: Message REJECTED due to incorrect configuration
> hi all!
>
> i have one exchange server 5.5 with sp5. this server connects to a mail
> relay where webshield smtp is installed and where all mail from/to the
> outside world comes/goes.
>
> today i received a message from other mail server (external) like this:
> "Message REJECTED due to incorrect configuration of YOUR mail server. Your
> mail server is incorrectly configured and this has caused your mail to be
> rejected. Reject Reason: HELO greeting is incorrect: 504 need
> fully-qualified hostname. The name which your mail server uses to identify
> itself is NOT a Fully Qualified Domain Name (FQDN) resolvable by the DNS
> and thus we have rejected your message. To ensure that mail sent to our
> mail server arrives correctly please ensure your configuration is
> correct."
>
> this never happened before (at least, i have no knowledge of anything
> similar ever happened) and nothing was changed in the config of the
> exchange server or the mail relay.
>
> ok... my question is: where do i configure this? can someone help?
>
> thanks a lot
>
>
>
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