Good afternoon, Thank you so much Wietse :) .
I got the idea… I was thinking all forked lmtp processes, could be sharing in some manner where they were delivering mail to (in this case the same lmtp server) and that setting lmtp_destination_concurrency_limit to one in this example, would have the same effect as having the process limit to 1 in master.cf for lmtp. Best regards, > El 3 jun 2020, a las 15:39, Wietse Venema <wie...@porcupine.org> escribió: > > Egoitz Aurrekoetxea: >> Good morning, >> >> I have a mail scanning machine which I want to deliver clean message >> through lmtp over tcp to another ip. In that other ip, imagine I have 500 >> mailboxes and 50 domains. >> >> How could I manage for fastly delivering a message to mailboxes without >> having to be delivering recipient to recipient. >> >> I mean. Imagine I have 10 messages in the queue and 5 of them have 100 >> recipients to be delivered to. If I set : >> >> lmtp_destination_concurrency_limit = 100 >> lmtp_destination_recipient_limit = 100 (>1 so... the destination is a >> domain) >> >> I could have the situation in which 10 lmtp processes to be delivering mail >> to a same mailbox.... how could I avoid it?.. I assume doing : >> >> lmtp_destination_concurrency_limit = 100 >> lmtp_destination_recipient_limit = 1 > > The above configures 100 concurrent deliveries per recipient. > >> But now, this queue would be far more slower to be dispatched. >> >> I just wanted Postfix to have the intelligence of just delivering one >> message at the same time to a mailbox.... is that possible? without >> suffering from a slow delivering queue?. > > It does hve the intelligence, you just have to recognoize that > concurrency scheduling changes with _recipient_limit = 1 > > With _recipient_limit = 1, _concurrency_limit specifies the concurrency > per recipient, and the process limit in master.cf determines how > many deliveries are made in parallel over all recipients. > > With > > lmtp_destination_recipient_limit = 1 > lmtp_destination_concurrency_limit = 1 > Plus a ~100 process limit in master.cf. > > Postfix will deliver 100 messages in parallel, but only one > per mailbox at a time. > > Wietse
