That's what I thought, but how will the valid (non-spam) packets get forwarded from the spamd OpenBSD server to the Linux qmail server (both sitting on the same DMZ network as you suggest) ?
----- Original Message ----- From: carlopmart <carlopm...@gmail.com> To: misc@openbsd.org Cc: Sent: Tuesday, October 25, 2011 11:29 AM Subject: Re: dedicating a server to spamd On 10/25/2011 11:09 AM, ML mail wrote: > 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 > Place another OpenBSD box on the DMZ area with greylisting tasks ... On the OpenBSD firewall side, do only packet filtering ... -- CL Martinez carlopmart {at} gmail {d0t} com