What is the best way to throttle mail from IMGate to the backend mail server? I've set IMGate to use only 1 delivery process, but I'm running into problems where the backend server will refuse a few connections, so Postfix will begin to backoff, then a few minutes later it will pound the backend server with lots of mail one after another... causing further connection refusals, and kicking in the backoff again.
Is there a way to disable the "backoff" feature? Or is there a better way to remedy this? I'm running with the following settings right now, but I'm open to suggestions: default_destination_concurrency_limit = 1 minimal_backoff_time = 1s maximal_backoff_time = 5s queue_run_delay = 420s Thanks, Bill
