Basic Exchange setup with SMTP Proxy
The smart host setting in the SMTP Connector in Exchange Manager must point to the "Internal (Address)" of the Astaro. If you already had a different setting in Exchange, pointing at an external smart host that you must use, you must transfer that to the Astaro's 'Smarthost settings' at the bottom of the 'Advanced' tab.Other than that, here's the basic Exchange installation by tab:
Don't forget to disable any DNAT that was forwarding inbound SMTP to Exchange or to a different anti-spam device as that takes precedence over the SMTP Proxy. If you want outbound mail to leave with the IP of an Additional Address named "Mail," you will need to 'SNAT : Any -> SMTP -> Internet : from External [Mail] (Address)'.Et voilà!Cheers - Bob
Should we also disable DNAT that was forwarding inbound IMAP to the local Exchange server?
The UTM's Email Protection does not (yet!) include an IMAP proxy, so your DNAT for that remains necessary.
Cheers - Bob