On 4/30/2015 8:59 AM, Rod K wrote: > Postscreen is successfully blocking a lot of spam for us. Our DNSBL > settings are doing a great job, however I'm having one "false > positive." One of our customers does a bit of business with a > Chinese firm. Their rep from this firm is using the nefarious > 163.com as their service provider. Of course this is being > blocked. I do NOT want to allow 163.com as a whole to be > whitelisted (I'm getting 100s of connections/day from them and AFAIK > only this particular address is sending legit email.) > > Is there anyway to have postscreen allow just the one particular > address?
postscreen knows the client IP address, nothing else. If the customer uses a particular IP address, you can whitelist it in postscreen_access_list. http://www.postfix.org/postconf.5.html#postscreen_access_list The alternative is to move the offending setting from postscreen to smtpd_sender_restrictions where you can whitelist by sender or client name. -- Noel Jones
