On Tue, Dec 02, 2008 at 05:50:38PM -0200, M?rcio Luciano Donada wrote:
> Victor Duchovni escreveu:
> > On Tue, Dec 02, 2008 at 04:40:41PM -0200, M?rcio Luciano Donada wrote:
> >
> >> My e-mail server traffic is high (about 6.5 Gb / day) and are now
> >> requiring the use always_bcc now. Is there a parameter to avoid
> >> performance problems?
> >
> > You could set:
> >
> > good_performance_when_set_empty =
> >
> > (this is the default value).
> >
> > If you are looking to tune your installation for a specific workload,
> > you need to ask a much more specific question, detailing that workload,
> > your current configuration, performance measurements you have made,
> > conclusions about critical resources (what runs out first CPU, Disk
> > I/O ops, Network Bandwidth, ...) and your performance goals.
> >
>
> Victor, did not like its irony,
>
> I want to know whether there is parameters of involving itself directly
> with the always_bcc, because I do not want to disrupt the smooth running
> of the server, but the question is this same, why should I pass
> parameters of disk, network parameters, what interests me is whether
> there is something connected to always_bcc for performance or not, rest
> and take care of myself.
Always_bcc causes a message to get an additional recipient. This
recipient is handled just as though the original sender specified
that recipient when sending the message.
Postfix delivers multi-recipient mail as efficiently as it can out
of the box, but if a particular destination dominates all others,
some tuning may be required for traffic to that destination
(concurrency limits, process limits, timeouts, ...)
Now tune your system to efficiently handle email where all messages have
a fixed additional recipient directed to the transport/nexthop/mailbox/...
that you have configured for the Bcc address.
--
Viktor.
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