I have an email address that is a forwarded address hosted on GoDaddy. It forwards to an email address on my Exchange 2007 Server. My clients have no problem sending to it and if I use my own G-Mail account I have no problems. The strange thing is that anyone on our domain cannot send an email to that address without receiving this message:
Delivery has failed to these recipients or distribution lists:
The recipient's e-mail address was not found in the recipient's e-mail system. Microsoft Exchange will not try to redeliver this message for you. Please check the e-mail address and try resending this message, or provide the following diagnostic text to your system administrator.
Sent by Microsoft Exchange Server 2007
There was more to the error message but it's pretty long so I didn't post it. I can if you need me to.