Hi Does any body now how to monitor all the ranges, to see if they are black listed, check one by one is not an good idea as an ISP. Anybody know a way to check a block of IP like /19 or something. Thanks in advance! -- -- Kind regards. Lu This transmission is intended solely for the addressee(s) shown above. It may contain information that is privileged, confidential or otherwise protected from disclosure. Any review, dissemination or use of this transmission or its contents by persons other than the intended addressee(s) is strictly prohibited. If you have received this transmission in error, please notify this office immediately and e-mail the original at the sender's address above by replying to this message and including the text of the transmission received.