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5 msgQ: smtpd_recipient_restrictions w/reject_unlist...
2 msgQuestion about recipient canonical rewrite and ...

QQ regarding server performance impact when doi...
\ Peter Santiago (28 Mar 2008)
. \ Victor Duchovni (28 Mar 2008)
. . \ Peter Santiago (28 Mar 2008)

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Subject:Re: QQ regarding server performance impact when doing RDNS checks
Group:Postfix-users
From:Peter Santiago
Date:28 Mar 2008


 
On Sat, Mar 29, 2008 at 12:47 AM, Victor Duchovni
<Victor.Duchovni> wrote:
> On Sat, Mar 29, 2008 at 12:39:31AM +0800, Peter Santiago wrote:
>
> > Is there any major impact on server performance when doing RDNS
>
reverse DNS checking...

unknown_client_hostname_check, I guess ^_^

> What is an RNDS check?
>
>
> > checks? If so, what does one do to mitigate or lessen the impact?
>
> To overcome latency, raise concurrency, so long as memory, CPU and
> network resources are not saturated. Also see STRESS_README.
>

So does this mean it is possible to set 3000 concurrent connections as
long as CPU (Xeon 3.6Ghz), memory (4Gig), and network(gigabit card)
resources are not saturated? Thanks a lot


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