If this isn't the correct place for this, please excuse the faux pas. I've added a couple of network ranges covering "known good" networks like places of work, to the -i option for spamass-milter.
The spamass-milter man-page says this will cause sa-m to "ignore messages if the originating IP" is in that list. But what I'm seeing in the logs, is it looks at the very last "from" address - in my case that's 127.0.0.1 since I'm using Fetchmail and then tossing to Sendmail. So this check is doing nothing for me. That seems to indicate sa-m will only look at the very last "Received:" header. Is that right? Any way to get it to look at the ACTUAL originating address? William L. Polhemus, Jr. P.E. Sent from my iPhone 5