On Thu, Jun 25, 2026, at 8:22 AM, Stephen J. Turnbull wrote:
Paul Tomblin via Mailman-users writes:
Right now it appears to be obeying the destination_recipient_limit (5) in my postfix configuration, but it's not obeying the destination_concurrency_limit (1),
Is that a typo? In <https://www.postfix.org/postconf.5.html> I didn't finad a mention of 'destination_concurrency_limit', rather a family of "default_destination_concurrency_limit" and "$TRANSPORT_destination_concurrency_limit" variables for $TRANSPORT = "smtp", "lmtp", "local", etc. (Similarly for "*_destination_recipient_limit".)
I was over simplifying there - I made a new transport called “slow_smtp” and made rr.com use it through /etc/postfix/transport, then set slow_smtp_destination_concurrency_limit. Same with the slow_smtp_recipient_limit.
-- Paul Tomblin