My <postmaster> default account is getting hammered with spam. I've got SA / Amavisd-new working and tagging the messages as ***spam*** however I've just re-configured SA to be a little more aggressive on scoring the messages. My question to the Postfix group is if I can configure a restriction in /etc/postfix directory to prevent repeat offenders from sending email to me. Someone a few years ago on this mailing list assisted me on configuring Postfix to use a 'client_access' & 'client_access.db' file to block IP's as shown below:
95.98.160.248 REJECT 190.64.194.12 REJECT I've noticed that I am now getting spam emails from several different hosts on one single network rather than from a particular host. Can I block the entire network as follows: 95.98.* REJECT I'm sure many on the list wouldn't do this on their personal mail server but I'm looking for a simple method that will stop the junk mail. I know the 'client_access' flat file works fine but it's very tedious to continuously add several IP's from the same network in when I can simply blanket the entire network. If legit mail is blocked due to this, I can review the rule at that time and see if it's safe to lift the block or white-list that one particular client I.P.
