Hi, I am in the process of setting up a t <goog_1238418073789>ransparent <goog_1238418073789>mail filter<http://www.linuxquestions.org/questions/linux-server-73/transparent-mail-filter-distribution-714608/#post3488536> .
Postfix seems the best I could find for this. I already have the following 'idea' about how it should be NAT router 172.16.0.254 Existing MS Exchange Server 172.16.0.2 In between I intend to place a transparent host (through a bridged interface) that redirects all traffic destined for 172.16.0.2 on port 25 to a local postfix instance. The postfix instance relays the mail to the exchange server after processed by Spamassasin. The source and destination domains are unkown. This seems to mean a couple of things I think (after reading the docs) mynetworks should be 0.0.0.0/0 (which seems really odd to me) I am not sure what I need to set relaydomains to, since these are unkown... relayhost should be 172.16.0.2 Any help is greatly appreciated Thanks a lot. Regards, Serge Fonville
