On Wed, Oct 19, 2022 at 4:12 PM Eric Wilkison <er...@motorola.com> wrote: Are there configuration options that will > a) adjust the number of DNS failures before postfix starts deferring the > messages > b) adjust the timeout before postfix stops queueing messages
Take a look at minimal_backoff_time and queue_run_delay they may help ameliorate the issue. 300 seconds is a default for many of the main.cf parameters, searching http://www.postfix.org/postconf.5.html for 300s will find them all for you. Of course, as you mentioned, fixing the DNS is the best course.
