Thomas Minor:
> Hello,
>
> I might have a problem with the smtp_connection cache.
> Regarding documentation, the cache is enabled on demand by default.
>
> I found a peer site, which is also driven by postfix, with uses greylisting.
> I have some 3000 mails to send to this particular server, which starts the
> session
> by greylisting my server. Since postfix uses the smtp_connection_cache by
> default,
> it reuses the connection which receives one greylisting temp fail after the
> other.
> This seems to triggers the $smtpd_hard_error_limit on the other site. My
> server
> continues to use now dead connection until the cache limits take effect.
>
> I tend to assume, that this is a bug and maybe a configurable amount of
> errors should
> trigger the sending postfix to abandon a connection.
>
> Did i miss any configuration options here or do you agree?
Why should Postfix abandon a connection that replies with 4xx to a
recipient? How is this different from sending a multi-recipient
message?
Wietse
