>These tools are popular, but I think they're kind of silly. Really? And how do you block someone who slowly try's (every 2-4 minutes) to bruteforce your smtp?

>These tools are popular, but I think they're kind of silly. Really? And how do you block someone who slowly try's (every 2-4 minutes) to bruteforce your smtp? Yes your openSSH has some slowdown mechanisms builtin, but your Imap-Server? Smtp-Server? Your openTTD-Server? However i think using the logs is the wrong approach hence my use of blacklistd* whenever possible. * https://www.freebsd.org/cgi/man.cgi?query=blacklistd&sektion=8&format=html https://www.freebsd.org/cgi/man.cgi?query=blacklistd&sektion... * https://man.netbsd.org/NetBSD-7.0/blacklistd.8 https://man.netbsd.org/NetBSD-7.0/blacklistd.8