Stefan Foerster:
> I don't send any large volumes to Yahoo, but I had to use a dedicated
> transport which ignored much more errors for a popular German freemail
> provider. Since you are using rate delays, your concurrency limit will
> basically be one, and this might very well be related to what you see.
This is a good point.
To compensate for this unwanted side effect of reduced concurrency
INCREASE the fragile_destination_concurrency_failed_cohort_limit
to 10-20 or so (or REDUCE fragile_destination_concurrency_negative_feedback
to 1/10 or 1/20).
> I don't know if you need to reload postfix and/or requeue the messages
> with "postsuper -r" after changing
> transport_destination_concurrency_failed_cohort_limit.
No. Use "postfix reload" to update the queue manager.
Wietse
