Hi,
Sorry if this is slightly off-topic, but at least a bunch of experts are
listening.
I am using Spamhaus (and other methods) and over time I have amassed a list of
IP ranges that (according to Spamhaus) shouldn't be sending e-mail at all. One
problem is that this list tends to become quite long and another is that I
would like to verify it so that I don't eventually block legitimate e-mail.
On the other hand, I would like to place as little a load as possible on
Spamhaus.
Here are my questions: Is the iptables approach at all viable in the long run?
Is there any non-commercial way to upload a text file containing spamming IP
addresses and have it verified for correctness?
Any other related response is of course welcome.
Thanks in advance.
Niclas
