On 2/4/11 3:38 AM, Wietse Venema wrote:
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
Thanks for the clarification; I can test this with smtpsource to see the
behaviour.
--
J.
