DNS Blacklist Script?

Chris Maness chris at chrismaness.com
Sat Aug 5 14:13:49 UTC 2006

Matthew Seaman wrote:
> You need to be very careful implementing something like this.  Most
> Spam nowadays is bot-generated and uses forged 'From' addresses culled
> from the address books on infected machines.  Unless you're careful,
> you're going to end up blocking a lot of completely innocent people,
> or worse, blocking your own legitimate e-mail users.
DNS based blacklists are based on the senders IP address, not the forged 
from address.

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