On 24 May, 2013, at 1:27, wietse@... (Wietse Venema) wrote:
> Joe Wong:
>>> Afaik this is the default behaviour. Postfix retries until
>>> queue_lifetime is exceeded.
>>> Are you experiencing something else? Can you show the logs, when the
>>> mail with queueid "92B8BCC3DE" got into the system?
>> It bounced right after the first attempt.
> That is what should happen. The DNS server replied that the
> destination does not exist.
> Postfix will retry when the DNS server is unavailable.
> This of course, assumes that the DNS server is working properly.
> If it replies with DOES NOT EXIST for other errors then all bets
> are off.
> You can kludge around this with soft_bounce=yes but that creates
> other problems, such as people never finding out that their
> mail is stuck in the queue.
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