Jeroen Geilman:
> >>> One huge improvement you can make is to specify the "relay" transport
> >>> for incoming mail.
> >> To achieve what ?
> > Postfix has separate "smtp" and "relay" transports for a good
> > reason.
> >
> > The scheduler uses round-robin destination selection.
>
> Does this mean "recipient domain" or "transport" ?
The next-hop destination.
> > This improves
> > fairness in the general case, but it bites when you have lots of
> > mail going to one place, typically, from internet to inside mailhost.
> >
> > In that case it is better to separate inbound (relay) mail from
> > outbound (smtp) mail, otherwise inbound deliveries suffer from
> > competition by outbound deliveries.
>
> How does this work ?
> I was under the impression that delivery is balanced between destination
> nexthops (as present in the queued message), not between transports.
>
> Or is it BOTH ?
Each transport (relay, smtp, local, etc.) has its own round-robin
scheduler. All schedulers share the active queue.
Wietse
