On Tue, 17 Jul 2007, Marten Lehmann wrote:
> Hello,
>
> how can I defer connections (giving a 4xx error) to our smtp server depending
> on the system load?
Hi,
$load_average contains the system load average multiplied by 1000.
You could put something like the following in your acl_smtp_connect to
defer when the load goes over e.g. 4.
defer
condition = ${if >{$load_average}{4000} {true}{false}}
message = Service temporarily unavailable, try again later.
Regards,
Mark.
> I currently have an option that only queues messages instead of delivering
> them immediately, but this causes more pain than it helps, because while
> mailboxes exceeding their limit would just cause a 5xx error at smtp time on
> any new message, now cause a bounce per message.
>
> Regards
> Marten
>
>
>
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