On 07/13/12 13:35, Noel Jones wrote: > > This suggests that 25 is too many. Rule of thumb -- if you're > getting timeouts under heavy load, that means you're accepting more > connections than your box can handle in a timely manner. > >> I'll lower it back to 40 (this is a decent-sized server) to limit the >> number of variables. > > As a general rule, you can use somewhere between 3 to 10 amavisd-new > processes per CPU, but you must have enough RAM to support that > number; there must be no swapping. >
Admittedly, I only twiddled that knob because it was the first one I saw, but I did check that the machine was under very little load at the time. I've blocked iContact for now (these messages were all spam, anyway), but I'll let them through again to see if I can get some real numbers.
