> On Jun 15, 2020, at 7:13 PM, "vi...@vheuser.com" <vi...@vheuser.com> wrote: > > The problem is periodic, completely irregular, mailing list loads. > It would be nice to lower the list priority > so that regular mail got delivered first. >
Postfix has only one queue, and concurrency and process count is per-destination, not based on where the mail came from. Consider using a separate postfix instance for delivering mail list messages to prevent them from interfering with regular mail. See MULTI_INSTANCE_README — Noel Jones
