On 10/16/20 9:24 PM, Viktor Dukhovni wrote: > The practical limit to the deferred queue size is therefore ~2 days of > throughput, and depends heavily on the per-delivery latency. If > delivery failures are slow (tarpitting or otherwise slow destinations) > the impact is greater.
Can the latency problems be worked around by increasing concurrency? My understanding is that Postfix might have problems at very high concurrency due to using one process per connection, whereas some other servers are event-driven and can handle thousands of connections without using too much memory. > There is no magic that can make OpenSMTPD immune to the laws of > arithmetic. Indeed there is not. Any statement to that effect on my part was erroneous and based on a misunderstanding. Sincerely, Demi
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