I am getting spam from servers that are listed in several RBLs that I use, here is a log sample when I egrep for the IP address in the mail log:
Jan 7 13:24:49 hasna postfix/smtpd[83149]: connect from 24-51-13-81.pittpa.adelphia.net[24.51.13.81] Jan 7 13:24:50 hasna postfix/smtpd[83149]: A6455AE141: client=24-51-13-81.pittpa.adelphia.net[24.51.13.81] Jan 7 13:24:53 hasna postfix/smtpd[83149]: disconnect from 24-51-13-81.pittpa.adelphia.net[24.51.13.81] This IP is listed in CBL, DSBL, NJABLDYNA, SPAMCOP. I have all of these in my smtpd_recipient_restrictions. Those RBLs do seem to work as they catch quite a lot as my spam-stats report tells me, so I don't know why this IP address slipped. This behavior seems sporadic, what shall I be looking for?
