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From: m listus on 28 May 2010 20:56
Hello everyone,

I'm having a problem with postfix smtp delivery.
One of our destination sites has its servers stopping receiving messages when they reach 20, and that is per connection.

So I need to tell postfix to send at most 20 messages per connection, and reconnect again.

I looked up smtp_*_limit options but they didn't correspond to what i needed.

Regards,
mlistus




From: Wietse Venema on 28 May 2010 20:59
m listus:
> Hello everyone,
>
> I'm having a problem with postfix smtp delivery.
> One of our destination sites has its servers stopping receiving messages when they reach 20, and that is per connection.
>
> So I need to tell postfix to send at most 20 messages per connection, and reconnect again.
>
> I looked up smtp_*_limit options but they didn't correspond to what i needed.
>

See http://www.postfix.org/CONNECTION_CACHE_README.html

Wietse

From: m listus on 28 May 2010 22:00
Hello Wietse,

So I guess the default behavior does fill my needs (10 < max=20).

smtp_connection_cache_reuse_limit (default: 10)

Thank you!

Regards,
mlistus

--- On Sat, 5/29/10, Wietse Venema <wietse(a)porcupine.org> wrote:

> From: Wietse Venema <wietse(a)porcupine.org>
> Subject: Re: limit messages per connection
> To: "m listus" <mlistus(a)yahoo.com>
> Cc: postfix-users(a)cloud9.net
> Date: Saturday, May 29, 2010, 9:59 AM
> m listus:
> > Hello everyone,
> >
> > I'm having a problem with postfix smtp delivery.
> > One of our destination sites has its servers stopping
> receiving messages when they reach 20, and that is per
> connection.
> >
> > So I need to tell postfix to send at most 20 messages
> per connection, and reconnect again.
> >
> > I looked up smtp_*_limit options but they didn't
> correspond to what i needed.
> >
>
> See http://www.postfix.org/CONNECTION_CACHE_README.html
>
>     Wietse
>




From: Wietse Venema on 28 May 2010 22:06
m listus:
> So I need to tell postfix to send at most 20 messages per connection,
> and reconnect again.

Wietse:
> See http://www.postfix.org/CONNECTION_CACHE_README.html

m listus:
>So I guess the default behavior does fill my needs (10 < max=20).
>smtp_connection_cache_reuse_limit (default: 10)

As documented in http://www.postfix.org/CONNECTION_CACHE_README.html:

With Postfix 2.2 the use count is limited with the
smtp_connection_cache_reuse_limit configuration parameter. With
Postfix 2.3 this is replaced by a time limit which is specified
with the smtp_connection_reuse_time_limit parameter.

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