White, Daniel E. (GSFC-770.0)[AEGIS]:
> Around 12000 messages.
> The queue went from ~3000 to over 12000 in about 30 minutes and then took 3
> hours to grind through all of them.
>
> I am still trying to determine if this was an accident or not.
> The source claims it was not intentionally malicious.
>
> Some postconf values:
>
> default_destination_concurrency_failed_cohort_limit = 1
> default_destination_concurrency_limit = 20
> default_process_limit = 100
>
> I did not see anything at http://www.postfix.org/TUNING_README.html that
> looked like it would help, but then we are operating on a skeleton crew, and
> I do not have the luxury to spend time digging into the details.
>
When a message was not delivered for 30min because of an outage,
then it will take 30min before Postfix tries to deliver that message
again. So it will take at last an hour to clear the queue, more
depending on how much additional mail was queued in the meantime.
Without further details there can be no useful help.
Wietse
