thoughts about a new module called check_spammer_connect

Dear list members,

I thought about a module which learns from the plugin dnsbl.

Maybe we call it check_known_dnsbl_spammer ;-) and use the module

http://search.cpan.org/~robm/Cache-FastMmap-1.39/lib/Cache/FastMmap.pm

Thoughts:

When the dnsbl returns a IP as Spammer
add the ip into Cache::FastMmap->set(...)

at the hook_connect the module checks if the IP is in the
Cache::FastMmap then deny.

The livetime in the cache should be configurable, imho.

What are you thinking about this idea?
Maybe someone have already done this?

BR
Aleks