qmail delivery slowdown under high load

Hi, I have an operational theory question: when the load in a qmail setup reaches certain level the queue starts to grow and after a short time the number of unprocessed messages starts to grow as well. This is OK, but: at the same time the speed of local-deliveries slows down tenfold and the

Re: Large ISPs/services running qmail?

At 2000.01.18 13:08, Tuesday, you wrote: Hello all, What large ISPs or services are running qmail, and roughly how much traffic do they have (e.g. number of messages per day)? Hi, we are running a public email service (web, pop3, forward) with a 5 frontend, 2 NFS backend, 1 database server