I have a Barracuda Spam & Virus Firewall on our network. I've configured the Exchange server to send all mail through the Barracuda and all outside mail comes through the Barracuda.
Everything seems to be working, but when a user on the inside tries to send a message to a non-existent account, the Exchange server just keeps bouncing the message back to the Barracuda and tries to create a loop.
Outside, the rejection notices are working fine.
Any ideas? I'm not sure I have the send connector setup as it should be. I'm really new to this.
Thanks.