Let me try rephrasing this so hopefully someone who understand how the so called advanced content filter can take a quick gander and let me know. By advanced content filter, I mean this: http://www.postfix.org/FILTER_README.html
So, here is my current setup from master.cf: smtp inet n - n - - smtpd -o content_filter=dspam:unix:/var/dspam/dspam.sock dspam unix - - n - - lmtp -o smtp_send_xforward_command=yes -o disable_mime_output_conversion=yes -o smtp_generic_maps= -o disable_dns_lookups=yes localhost:10026 inet n - n - - smtpd -o content_filter= -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks,no_milters -o smtpd_helo_restrictions= -o smtpd_client_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o mynetworks=127.0.0.0/8 -o smtpd_authorized_xforward_hosts=127.0.0.0/8 So, mail should go from postfix -> lmtp -> dspam -> smtpd on port 10026, but using some sockets instead of TCP. So, assuming I have this correct, does this then qualify as the so called advanced content filter technique so it gains the supposed performance benefits? The above does work, just wondering if I have it setup in the most efficient manner.
