>> >> SA is working for the most part beyond expectations, the only problem I=B9m >> having is filtering spoofed email address (i.e. valid_u...@ourdomain.com). = >> I >> am able to filter out non-valid user addresses (i.e. spam...@ourdomain.com)= >> . >> I run SA-Update daily, have piped well over 500 of these messages through >> sa-learn, yet they still come through. I know this is a generic outline of >> the problem, but it=B9s a start, if you need more info I can send it. >> Hi,
while this may not be a solution for everybody (and might even be a good thing for some of your users and a bad thing for others), at some time I decided that mail coming from the internet with a local sender must be mail submission - and requires smtp auth. It turned out that there were a few exceptions; at that time some mails from ebay where sent from their server with the ebay member as from address - they seem to have changed that because it does not work with SPF or DKIM either Wolfgang
