I'm trying to just use qpsmtpd to stop multiple connections from spam servers. Some .eu servers are trying to sent 35 or 40 emails at a time... they get rejected but it takes up my server's resources to do it. But I want to wait and set up qpsmtpd to check blacklists later. I'm using Postfix.
Is this relatively easy to do? I'm not an smtp novice but new to qpsmtpd. Craig