Paul Reilly: > My question is can I acheive this outflow rate limiting with the > smtp_destination_concurrency limits, or should I be using the equavellent
You cannot control rates with CPONCURRENCY limits. Instead you insert delays between mail deliveries. http://www.postfix.org/postconf.5.html#default_destination_rate_delay http://www.postfix.org/postconf.5.html#transport_destination_rate_delay Wietse