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Andrew Hodgson | 18 Jun 2012 21:32

Personalisation: how long does it take?

Hi,

Just wondering how long in the real world it takes to get all messages from a personalised list sent out and
processed by the MTA on the same machine as Mailman?  List is around 750 members.  I did run this once and it
took over 10 minutes to get all the messages delivered through the MTA, I am partially wondering whether
that is because I am DKIM signing each message?  If I use standard delivery the processing time is a lot
shorter (around a minute).

Just wondering,
Andrew.
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Terry Earley | 18 Jun 2012 22:24

Re: Personalisation: how long does it take?

Our own experience sending to 2100 users is that without personalization a
message went out in 2 seconds. When we applied personalization and VERP,
that test message went out in 120 seconds, which was acceptable to us.

Obviously, there are many factors affecting speed of delivery.
Personalization is just one. What you did was best. that is to test with
your own environment.

Terry Earley

FitEyes

On Mon, Jun 18, 2012 at 1:32 PM, Andrew Hodgson <andrew <at> hodgsonfamily.org>wrote:

> Hi,
>
> Just wondering how long in the real world it takes to get all messages
> from a personalised list sent out and processed by the MTA on the same
> machine as Mailman?  List is around 750 members.  I did run this once and
> it took over 10 minutes to get all the messages delivered through the MTA,
> I am partially wondering whether that is because I am DKIM signing each
> message?  If I use standard delivery the processing time is a lot shorter
> (around a minute).
>
> Just wondering,
> Andrew.
> ------------------------------------------------------
> Mailman-Users mailing list Mailman-Users <at> python.org
> http://mail.python.org/mailman/listinfo/mailman-users
> Mailman FAQ: http://wiki.list.org/x/AgA3
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Terry Earley | 18 Jun 2012 23:00

Re: Personalisation: how long does it take?

I should also mention that this test was with DKIM signing and the number
of members was between 2100 and 2200.

Terry

On Mon, Jun 18, 2012 at 2:24 PM, Terry Earley <terry <at> fiteyes.com> wrote:

> Our own experience sending to 2100 users is that without personalization a
> message went out in 2 seconds. When we applied personalization and VERP,
> that test message went out in 120 seconds, which was acceptable to us.
>
> Obviously, there are many factors affecting speed of delivery.
> Personalization is just one. What you did was best. that is to test with
> your own environment.
>
> Terry Earley
>
> FitEyes
>
>
>
> On Mon, Jun 18, 2012 at 1:32 PM, Andrew Hodgson <andrew <at> hodgsonfamily.org>wrote:
>
>> Hi,
>>
>> Just wondering how long in the real world it takes to get all messages
>> from a personalised list sent out and processed by the MTA on the same
>> machine as Mailman?  List is around 750 members.  I did run this once and
>> it took over 10 minutes to get all the messages delivered through the MTA,
>> I am partially wondering whether that is because I am DKIM signing each
(Continue reading)

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Andrew Hodgson | 19 Jun 2012 00:32

Re: Personalisation: how long does it take?

Terry Earley wrote:

>I should also mention that this test was with DKIM signing and the number of members was between 2100 and 2200.

Thanks, something is wrong with the setup or the VPS I use is not running efficiently.  What MTA are you using?
I am on Exim4.

Andrew. 
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Brad Knowles | 19 Jun 2012 00:43
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Re: Personalisation: how long does it take?

On Jun 18, 2012, at 3:32 PM, Andrew Hodgson wrote:

> Thanks, something is wrong with the setup or the VPS I use is not running efficiently.  What MTA are you
using? I am on Exim4.

Postfix has some out-of-the-box settings that make it particularly well suited for the role of being an MTA
for a mailing list manager like Mailman.  With work, you can probably get a configuration for Exim that will
perform nearly as fast for the same size of list, but Exim is designed primarily for other purposes than
maximum performance.  As the list grows larger, the performance gap between a well-tuned postfix
configuration and a well-tuned Exim configuration is likely to grow.

On the other hand, some people will find it easier to administer the Exim configuration than they would postfix.

If ten minutes to send out your list is actually acceptable for you, then don't worry that someone else can
get their entire list sent out in 120 seconds, even if they're the same size and they're doing all the same
crypto operations.  You need what is good enough for you, and you don't need to be comparing yourself to
someone else.

--
Brad Knowles <brad <at> shub-internet.org>
LinkedIn Profile: <http://tinyurl.com/y8kpxu>

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Terry Earley | 19 Jun 2012 00:56

Re: Personalisation: how long does it take?

We are using postfix on the same server as our MTA.

Terry

On Mon, Jun 18, 2012 at 4:32 PM, Andrew Hodgson <andrew <at> hodgsonfamily.org>wrote:

> Terry Earley wrote:
>
> >I should also mention that this test was with DKIM signing and the number
> of members was between 2100 and 2200.
>
> Thanks, something is wrong with the setup or the VPS I use is not running
> efficiently.  What MTA are you using? I am on Exim4.
>
> Andrew.
>
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