Chris L. Franklin said: > Thanks but we do run my servers as I posted above (minus the Non DNS > compliant part). Blacked listed user and Domains my server to not accept > messages from. Whitelisted users and domain DO NOT get passed though SA > WE DO NOT use negitive scoring. > We Stop 99.2% of all spam and get less the %0.82 miss marked emails. > We Subject mark at 5 points, and We report a "550" error" on all emails > with a score of 8 or more during the smtp transaction. (Yes we Do SA > scanning during the smtp transaction. Aka we stop spam at the door.)
If you are rejecting mail during the SMTP session than you have no way of verifying you are at %0.82 false positive rate. How do you know I'm not sending you a legit message that's being rejected at the SMTP level unless I bother to contact you via other means? (something few senders bother with) 0.82% seems very high to me also, nearly 1 in 100 message is marked wrong? Maybe your users are more tolerant of false positives and just want all spam blocked but this is not the case for most organizations. Many organizations demand an extremely low to non-existant FP percentage while being more tolerant of the occassional false negative. To each his own I guess, but I agree with the first respondant that your missing out by turning off negative scoring... Jay -- Jay Lee Network / Systems Administrator Information Technology Dept. Philadelphia Biblical University --
