We recently got our first Astaro firewall and I have been slowly setting it up in our test environment. I have enabled the SMTP proxy and set it to transparent mode. It is set to forward to our internal Exchange server. Whenever I send a test E-mail to our test domain, I immediately receive the following error back
***.xx.***.xx does not like recipient.
Remote host said: 550 Address unknown
Giving up on ***.xx.***.xx.
I see nothing in the live log. If I disable the SMTP proxy I get no response back, so I'm assuming it is at least making it to the proxy. The E-mail address is in our test domain but is valid. Any ideas? Thanks!
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