On 11/7/2013 1:27 PM, Roman Gelfand wrote: > Is there a limit on a number of connections or number of emails could > be sent from an ip?
Postfix does have some limits. If a client exceeds the limits, postfix will no longer accept mail from the client, and the offense is noted in the logs. Some of the parameters, most default to 0 (no limit) http://www.postfix.org/postconf.5.html#smtpd_client_connection_count_limit http://www.postfix.org/postconf.5.html#smtpd_client_connection_rate_limit http://www.postfix.org/postconf.5.html#smtpd_client_message_rate_limit http://www.postfix.org/postconf.5.html#smtpd_client_new_tls_session_rate_limit > > The reason why I am asking is... There is this workstation which is > able to connect to other ports of the postfix server and, at the same > time, other workstations could connect to postfixes smtp port. Look for the client's IP in the postfix log, and it will explain the problem. If nothing is in the postfix log, you have a firewall issue. -- Noel Jones
