|Actually, your system handled it. If you want to take the time to report the incident to each owner of the IP addresses involved, you can do that, in hopes that they will close the hole. For example the first IP is owned by Cox Communications. 188.8.131.52 |
The second IP, in the list is in Brazil Grupo de Segurança Vírtua
Security and mail abuse issues should also be addressed to cert.br, http://www.cert.br/, respectivelly to firstname.lastname@example.org and email@example.com
The third IP is owned by Comcast
The fourth is in Isreal
Please Send Spam and Abuse ONLY to firstname.lastname@example.org
That last IP is in Russia.
Please use email@example.com for spam and abuse complaints. Mails for other addresses will be ignored
I just did most of the work for you. Trying to get domain owners to close holes, is not easy. Tracing zombie systems is time consuming but that's how you would do it. If you decide to notify the domain administrators, include the corresponding line, from your log file.
How do you know when a politician is lying? His mouth is moving.