On Wed, Oct 04, 2023 at 04:18:43PM +0200, Kevin Cousin via Postfix-users wrote:
> > We have a solution for that, and that is not slowing down message
> > arrivals or speeding up deliveries.
>
> Mails are arriving fast, they arrive quicly enough to fill the active
> queue.
SHOULD all these
Hi
> Can you answer one question: is mail arriving too fast, or are
>
> deliveries too slow? If the problem is the latter, then your queue
>
> may be full of MAILER-DAEMON messages.
>
> We have a solution for that, and that is not slowing down message
>
> arrivals or speeding up deliveries.
Wietse Venema via Postfix-users:
> Viktor Dukhovni via Postfix-users:
> > On Tue, Oct 03, 2023 at 06:29:08PM -0400, Wietse Venema via Postfix-users
> > wrote:
> >
> > > > My first wild guess is setting in_flow_delay to a higher value might
> > > > help. Note this may be completely
Viktor Dukhovni via Postfix-users:
> On Tue, Oct 03, 2023 at 06:29:08PM -0400, Wietse Venema via Postfix-users
> wrote:
>
> > > My first wild guess is setting in_flow_delay to a higher value might
> > > help. Note this may be completely inappropriate for your specific
> > > application.
> > >
On Tue, Oct 03, 2023 at 06:29:08PM -0400, Wietse Venema via Postfix-users wrote:
> > My first wild guess is setting in_flow_delay to a higher value might
> > help. Note this may be completely inappropriate for your specific
> > application.
> >
Noel Jones via Postfix-users:
> My first wild guess is setting in_flow_delay to a higher value might
> help. Note this may be completely inappropriate for your specific
> application.
> http://www.postfix.org/postconf.5.html#in_flow_delay
That, and reducinig the number of smtpd processes if
On 10/3/2023 2:11 PM, Kevin C via Postfix-users wrote:
Hi Matthew, Hi Wietse,
Our postfix servers are only MTAs who transfer mails from internal IT apps to
end users over Internet. We don't receive mails from Internet.
Sometimes, an abnormal activity can fill active queue unitl it's full, and
Hi Matthew, Hi Wietse,
Our postfix servers are only MTAs who transfer mails from internal IT apps to
end users over Internet. We don't receive mails from Internet.
Sometimes, an abnormal activity can fill active queue unitl it's full, and it
slow down all mail delivery. We had some rules to
I might had used the wrong terminology. I was mainly referencing delayed
email that occurs with Grey listing. Most of the delay email for me is
either Google or Yahoo.
Matthew
On 9/29/2023 7:40 PM, Wietse Venema via Postfix-users wrote:
Matthew McGehrin via Postfix-users:
Hi Kevin.
If the
Matthew McGehrin via Postfix-users:
> Hi Kevin.
>
> If the delays are being caused by bounce message processing, you could
Then you should configre Postfix to block undeliverable mail.
- Don't accept mail for non-existent recipients.
- Don't forward SPAM to other systems.
Wietse
Hi Kevin.
If the delays are being caused by bounce message processing, you could
run a second instance dedicated to just processing delayed messages
using fallback_relay.
You can also make adjustments to the individual queues in master.cf, one
tweak I use is increasing the flush rate to
Wietse Venema via Postfix-users:
> Kevin Cousin via Postfix-users:
> > Greetings List,
> >
> > We recently had an issue and the active queue was full and slowed
> > down all new mail delivery. Is it possible to rate limit the mail
> > flow to protect smtpd from a massive mail input ?
>
> By
Kevin Cousin via Postfix-users:
> Greetings List,
>
> We recently had an issue and the active queue was full and slowed
> down all new mail delivery. Is it possible to rate limit the mail
> flow to protect smtpd from a massive mail input ?
By default, the Postfix SMTP server enforces
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