On Tue, Apr 19, 2011 at 11:28:49PM -0300, Eduardo M. Stelmaszczyk wrote:
> > /etc/postfix/main.cf:
> > smtpd_discard_ehlo_keywords = silent-discard, dsn
> >
> > meaning don't send DSN NOTIFY for anyone.
> >
> > DSN was added long after the synchronous tls_flush() client
> > which was not designed for high volume.
> >
> > Wietse
>
>
> I would disable DSNs if I could, but unfortunately I'm not allowed to do
> that since it's a service the users need.
Are your users specifically using "NOTIFY=SUCCESS"? If so, and the rate
of such requests is high enough, you must disable inflow delays.
--
Viktor.
