> AI have a doubt about outbound SMTP deliveries.
> >Because, my servers are running a few "smtp" processes and with this,
> >the queue for my domain is growing very fast!!
> >
> >The I/O in partition of queue is not saturated... where is the problem?
>
> If FreeBSD,

is Solaris...

> iostat -c 60

i'm running iostat -xn 2 for disk stats, and the i/o stats is
acceptable... in average 70/90% busy

> ... to see if the mailqueue disk i/o is saturated.
>
> ps aux | egrep -i "smtp -t" | wc -l

I set for 300 processes, but is running in average 100 processes...

> ... to see if the count of SMTP process is pegged at the value of in
> master.cf. if yes, increase master.cf.
>
> ps aux | egrep -i "smtpd -t" | wc -l

I set for 300 too, but if stay in this value, my queue increase very
fast!! so, I lowered for 150...

> ... to see if the count of SMTPD process is pegged at the value (or value +
> 1) in master.cf.
>
> run pflogsumm to see the what is building up in deferred mailqueue is
> non-deliverable bounce messages.

when can I get this script?

> btw, postfix won't blow up. I've seen mailqueues of 50k to 110K msgs and
> postfix never burped.

I see more than 500k :)

tks a lot Len,
Andre Galvani

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