> On Wed, 12 Nov 2008, Roderick A. Anderson wrote:
>
> > Wietse Venema wrote:
> >> Roderick A. Anderson:
> >>> I'm implementing greylisting on CentOS 5 systems.
> >>>
> >>> These are spools for the actual mailserver/mailbox systems.
> >>>
> >>> Currently we have:
> >>>
> >>> smtpd_recipient_restrictions =
> >>> reject_unauth_pipelining, cheap
Don't forget: reject_unauth_pipelining is not useful outside
smtpd_data_restrictions when
1) the client uses ESMTP (EHLO instead of HELO) and 2) with "smtpd_delay_reject
= yes" (the default). The use of reject_unauth_pipelining in the other
restriction contexts is therefore not recommended.