Markus Schönhaber <postfix-us...@list-post.mks-mail.de> wrote:- >03.11.21, 10:53 +0100, @lbutlr: > >> postfix/smtps/smtpd[5554] warning: AUTH command rate limit exceeded: 4 >> >> Where is this limit set? I looked through postconf -d | grep auth looking >> for something but did not find anything. > >My guess would be >http://www.postfix.org/postconf.5.html#smtpd_client_auth_rate_limit
What might be useful would be a setting which rate limits clients based on the number of FAILED AUTH requests made, probably over a long period of time. I don't see one, but may be missing something... -- Best wishes, Matthew
