M?rcio Luciano Donada:
> Hi lists,
> I am with problem in my line of e-mails (postqueue-p) and the line only
> grows. I wonder, what parameters to performance that I can use to
> improve the delivery of e-mail and download this queue. Below my
> configuration:
General recommendation: delete all those tweaks that you made,
then present maillog statistics that show what the nature of
the performance problem is.
Wietse
> command_time_limit = 1h
> default_destination_concurrency_limit = 50
> default_destination_recipient_limit = 50
> default_process_limit = 200
What is the nature of your internet link? You can't expect to
deliver 200 connections in parallel over ASDL.
> local_destination_concurrency_limit = 5
> mailbox_command = /usr/bin/procmail -p -t -m /etc/procmailrc
This means you are willing to have five procmail processes fight
for access to the same mailbox.
> maximal_backoff_time = 480s
> minimal_backoff_time = 240s
> queue_run_delay = 480s
You can specify a 1 second minimal_backoff_time and it still is
not going to make any difference in performance.
> smtp_connection_cache_on_demand = yes
> smtp_connection_cache_time_limit = 60s
That looks anti-social, but fortunately you haven't discovered the
parameter that really allows such large connection cache times.
> smtp_destination_concurrency_limit = 50
This is definitely anti-social.
> smtp_mx_session_limit = 150
This slows you down. I suppose that is good.
