Am 08.05.2014 17:26, schrieb Alfredo Saldanha: > When the documentation says: > "IMPORTANT: These limits must not be used to regulate legitimate traffic: > mail will suffer grotesque delays if you do so. The limits are designed to > protect the smtpd(8) server against abuse by out-of-control clients." > > How long is this "grotesque delays" ? > Because the idea is not reject or discard the message.
you need to adjust this to your mail-flow the values below are active for more than a year on a production server with 160 mail-domains where bulk mail is prohibited in general because if somebody needs newsletter systems this is done here on a own application server with his own MTA and IP > Am 08.05.2014 16:09, schrieb Alfredo Saldanha: >> Is possible to decrease the postfix connection speed in case of possible >> spam? >> Per number of connections or messages per second come from a specific IP? > > anvil_rate_time_unit = 1800s > smtpd_client_connection_rate_limit = 50 > smtpd_client_recipient_rate_limit = 400 > smtpd_recipient_limit = 100
