<JohnCabot@discussions.microsoft.com> wrote:

>Hi - I'm running Exchanger Server 2000 and I'm having problems sending to a
>particular domain. All other messages in the smtp queue are delivered as
>expected. The messages comes back to the client stating that message sent to
>xyz.com is delayed. After several more attempts the message returns to the
>client as undeliverable. This is the only message and domain that we can't
>seem to send to. I've contacted the xyz.com domain and they informed me that
>the message is not reaching thier mail server. It almost appears that there
>is a setting on my exchange server that is blocking access to this domain.
>I'm pretty sure that we only have filters blocking incoming domains. I
>couldn't find any ip or domain blocked at the smtp level. Any ideas?