> Finally there is a special feature that barrcuda folks call "deep scanning" > which makes the appliance scans the 'Received' headers and reject the mails > if an IP found in that headers, is listed in the DNSBL... a feature that > should obviously be called: 'even increase my false positive rate'
Perhaps for authenticated SMTP not record the IP address in the headers but rather just the authenticated username in the headers. I think Squirrelmail does that. Your MTA logs will have the IP recorded if needed later. Matt
