[Mailman-Developers] Postfix tuning

[Bob Puff@NLE]

Last night, a couple of my bigger lists had really big digests go out... It flooded my ==1mb connection for a good 20 minutes solid.

During this, bounce replies had a hard time coming back.  Actually, most everything had a hard time, except the delivery.  I do see a lot of timeout messages in the
delivery, so I'm wondering if I'm just initiating too many smtp sessions for my own good.

Ideally, I'd like to throttle back the bandwidth of the -sending- of mailman messages to something like 512k or something, so my connection is still worth something while
messages are being sent.  I've seen messages related to using bandwidth control programs, but I really want to just slow down (a little) the deliveries, while keeping the
server always open for incoming messages.

Any pointers on Postfix tuning for such?

Bob