Hi, I have 2 OpenBSDs having a VPN tunnel between them. One of the peer is having behind it a spam filter. All the SMTP traffic for that is getting redirected from internet internal to spam filter machine, then filtered and delivered to the mail server. One the second BSD I have the SMTP backup for the main SMTP server located on the first BSD. When the SMTP server located on the first BSD fails the second is taking the mails and as soon as the primary SMTP servers comes up it delivers the traffic but because of the VPN tunnel, the traffic is not getting filtered by the spam filter (the traffic is not getting redirect anymore as is coming from other interface).
Is there a way to rdr the traffic which comes on the tunnel to a different server then the one which is coming to? I tried with: rdr pass on enc0 proto tcp from any to $ext port 25 -> <spam filter IP address> but it didn't work. Could you please help me out? Thanks -- Alex
