Is there is way to ban SMTP from certain IP addresses

[rrsub]

About every 5 hours, my SMTP service shuts down due to excessive connections. It restarts so it's really not a `service to the user` problem. It's a log annoyance and I know if I can stop the `excessive connections`, I can stop a good 60% of incoming SPAM. Zombies, I can't because it impossible.

The bulk of the connections are from known spammers IP addresses, I.E. the Asian-Pacific rim, Latin America, Russia, and Africa.

There is no way I can ban these using DNS but I can ban with the IP addresses as I have my own database of them.

Is there a way I can blacklist IP address networks for qmail to receive?

 

[thedaver]

you may place entries into your "tcp.smtp" file and compile a new "tcp.smtp.cdb" file.

I put together a project a while that was related, you can probably reuse a good bit of it...

http://www.bantcp.com/

Good luck.

D.E.R. Management - IT Project Management Consulting

http://www.dermanagement.com/