Hello, I am currently running spamd on an OpenBSD firewall which does greylisting to protect a qmail linux mail server on a DMZ and was wondering if it would be possible to have both tasks (firewalling and spamd/greylisting) on two different physical machines so that the firewall would just do packet filtering and another separate machine just greylisting?
The problem here what I see is that the dedicated greylisting machine would have somehow to redirect IP addresses which are not on the greylist to the mail server. As far as I know this is not possible with a machine having only one NIC. Any ideas on recommendation on how to achieve this? Regards, ML
