Just moved to Astaro and I need to get SPAM detection running a bit stricter than the default settings. A lot of SPAM is getting through and not even being tagged.
some users also mistakenly make a port-forward/dnat rule for smtp port 25 to their mail server (forwarding rule) which actually jumps right over the SMTP proxy, and can give rise to a sense that our spam detection isnt working right (which its not since it doesnt have any chance to the filter the messages then).
Just checking to make sure this doesn't apply to you. There should be no dnats for port 25 at all, since the SMTP proxy itself does the routing/filtering.
some users also mistakenly make a port-forward/dnat rule for smtp port 25 to their mail server (forwarding rule) which actually jumps right over the SMTP proxy, and can give rise to a sense that our spam detection isnt working right (which its not since it doesnt have any chance to the filter the messages then).
Just checking to make sure this doesn't apply to you. There should be no dnats for port 25 at all, since the SMTP proxy itself does the routing/filtering.