I'm not the big Exchange guru... and I have a strange problem with my Exchange 2010 setup.
In the past I had domain1.tld in my setup, but it has now been moved to others servers, and removed. The problem is, if another user on this Exchange setup try to send to an email adress that belongs to this domain, they get an error, that the message could not be delivered after some time. I think the setup still thinks that the domain belongs on this server. But what am I missing here ?? Where should I look ??